How to calculate fabric for pleated curtains

Calculation of folds can be done in different ways, depending on what initial data is decisive: the number of folds, the depth of the folds or the size of the existing piece of fabric.

But in any case, first of all you need to decide on the length of the cut after laying the folds Dk.

Dk can be equal to the waist circumference, hip circumference taking into account allowances for freedom, or the length of the cut to which the part with folds will be sewn. More details here

How to make folds on a curtain?

Assembling a curtain with your own hands can be done in two ways:

using a special braid;
manually.

A distinctive feature of the first method is its simplicity and high speed. To form soft waves it is enough:

purchase curtain tape with the required assembly factor from a specialized store;
attach the braid, pull the threads located on it;
straighten the bends carefully;
tie the ends of the threads.

The result is smooth, uniform assemblies. Disadvantages of this method:

it is not suitable for decorating dense fabrics;
the threads may fray over time, and the braid will have to be replaced;
Using tape you cannot make curly large folds.

More expressive options are obtained manually, but this process is labor-intensive. Also here you will have to make a preliminary calculation of the size, number of folds and, if necessary, the distance between them.

Methods for folding folds

Curtain assemblies can be varied. The following decoration methods are used:

Manually, that is, while hanging the curtain on the cornice.
Using tape attached to the top of the fabric using a sewing machine.

Thelma is a convenient option that is being used more and more often today. A tape of rigid fabric of varying widths is used. It can be white, transparent or colored. There are special threads in the middle of the tape, which are then tightened.

Bow fold pattern

After this, the curtain is gathered into beautiful and neat folds that retain their shape.

Assembling the fabric with braid is simple. After the ribbon is sewn, you need to carefully pull the threads, carefully collecting the folds. You cannot tug the threads too hard, since they are the weak part of the entire structure. If the threads break, it is necessary to replace them or completely replace the entire braid. The manual method of laying curtains is the simplest: when hanging on the curtain rod, you just need to manually distribute the fabric.

Types of folds

Most often, when making curtains or lambrequins with your own hands, you get three fold options:

one-sided - the fabric is laid evenly or at intervals in one direction in even waves;
bow - are one-sided folds directed in different directions, the finished structure looks like a flat bow;
counter - the opposite of bow ones, in them, on the front side, the folds of the fabric are directed towards each other.

It will be interesting to look at a curtain in which one-sided folds go towards the center towards each other, and the central gather is counter.

What calculations are needed?

Before carrying out the calculation, it will be necessary to measure the length of the cornice and decide on the method of processing the side edges. The depth of assembly depends on the density of the fabric and the size of the window (the smaller, the narrower the parts should be made). Experts advise taking the depth of the part within 14-20 cm.

An example of calculating such a model for a cornice 1.2 m or 120 cm long. The width of each finished part is 10 cm.

You can calculate the required footage using the formula:

cornice length * coefficient + seam allowances

1.2 * 3 + 0.03 = 3.63 m = 363 cm.

If one piece of fabric is missing, then when stitching you need to make sure that the seam gets as close as possible to the inner fold line.

Bow pleats on curtains come with or without gaps. Any part consists of an external assembly width (a) and two internal widths (c).

An example of calculating a continuous assembly (without gaps) for the above cornice. For this option, the coefficient is 3. Therefore, the fabric footage is determined as in the previous case.

Calculation of the number of bows:

cornice length / fold width

Option with gaps

If you have chosen a fairly dense fabric for sewing a window curtain with your own hands or you need to save material, use bow folds with intervals of different sizes. The gathering coefficient depends on the ratio of the width of the fold (a) and the gap (b):

a = b – the coefficient is assumed to be 2;
b = ½ a - the coefficient will be equal to 2.5.

An example of calculation for the previously selected cornice with a coefficient of 2. The distance between the individual parts and the width of the fold is taken to be 8 cm.

Let's calculate the fabric footage:

cornice length * coefficient + seam allowances

1.2 * 2 + 0.03 = 2.43 m = 243 cm.

If you have little experience in sewing with your own hands and doubts arise, it is better to add 15-20 cm in case of errors when laying the gathers. The number of bows is:

Round to the nearest whole number – 8.

Specify the size of the assembly and the gap:

Therefore, the width of the fold and the gap between the individual parts are 7.5 cm.

After this, you can start decorating the fabric.

How to calculate fabric for curtains with eyelets

To calculate the amount of fabric for curtains with eyelets, you need to use KS 2. Calculation example for curtains for a standard window with a height of 2.6 m, a cornice length of 2 m:

Height consumption - to the curtain height (260 cm) + bottom hem (15 cm) + top hem (15 cm) = 290 cm (2.9 m).
Width consumption (for one canvas) - first multiply the length of the cornice by KS (2 m * 2 = 4). We divide the resulting number by the number of canvases, that is, 4: 2 = 2 m.

The next step is to measure the diameter of the inserted rings. You should choose products with a diameter larger than the diameter of the cornice by 8-10 mm. To ensure that the side edges of the curtains are curved towards the window, it is important to use an even number of eyelets. Typically, about 6 standard rings are used per 1 m of fabric. If you multiply this number by the width of the fabric, you will find out how many fittings will be needed.Alt: how to calculate the amount of fabric for curtains with eyelets

At what distance is it best to place the rings on the panel? This can be found out by performing several calculations (in centimeters):

The rest of the fabric on the sides: for example, 3 cm multiplied by the number of sides, that is, 2, which gives 6 cm.
Remainder from the 1st to the last hole: the remainder on the sides is subtracted from the width of the curtain.
The number of centimeters that the fittings occupy on the panel: the internal diameter of the products is multiplied by their number.
The total gap inside the holes: from the remainder of the material from the first to the last ring (see point 1) subtract the distance occupied by the metal rings on the fabric.
The interval in the middle of the holes, for which 1 is subtracted from the number of rings.

Now you can determine the gap between the fittings. To do this, divide the indicator from point 3 into the intervals between fittings.

How to lay one-sided models?

Laying one-sided assemblies is not very difficult. To do this you should:

mark the fold and alignment lines, setting aside segments equal to the width of the fold (10 cm in the example);
lay the first piece - take the fabric at the level of the third mark and pull it to the first, pin it together (line 2 will be inside the fold);
move the fourth and pin at the level of the second and so on until the end of the material;
after forming all the assemblies, they should be secured with machine stitching;
treat the top with curtain tape, having previously pulled out the strings from it, or with decorative braid.

How to create bow folds?

In bow versions, the fold lines are located at the back. The central part (bow) is located on the face of the curtain, and the folds are connected on the wrong side.

When marking bow folds, it is important to always start with a value of c. In the future, this distance is not laid down, but is wrapped on the opposite side. Next, you should make the markings according to the calculation (for continuous ones, 10 cm, for the option with intervals, 7.5 cm each). For greater convenience in the latter case, it is better to mark the gaps with colored chalk or a felt-tip pen.

After applying the markings, you can begin decorating. For solid model:

lay the first bow - move the fabric at the level of the first mark to the beginning of the fabric, and align mark 2 with 3 and pin it. In this case, the fold lines should meet in the center of the bow. After this, the extreme bend can be released;
second bow - combine mark 4 with 3, and 6 with 5. Pin both folds;
continue until the end of the fabric;
stitch and finish the top.

For the spaced option, the first bow is formed as described above. For the second bow: combine mark 5 with 4, and pull 7 to 6. Pin and similarly form the remaining bows and process the top of the curtain.

Conclusion

DIY assemblies can be done using curtain tape or by hand. The first method is simple and does not require much effort. The second is more labor-intensive, but you can create beautiful, stylish folds.

Typically, curtains have one-sided, counter or bow options with or without gaps. The calculation and sequence of actions to create the necessary composition depends on this.

Once the renovation is complete, they usually move on to one of the most interesting tasks - decorating the window. Interior textile departments are replete with offers, but before purchasing it is important to have at least a general idea of how much fabric is needed for curtains. Many people prefer to go to a salon or atelier, but tailoring will cost more than the material. The style is sometimes imposed according to their own standards, and not according to the client’s request. For those who have sewing experience, it will be much more economical to do it yourself.

Where to start calculating when choosing window design with curtains

For those who have never made window decor, it seems that nothing is easier than taking measurements for curtains. The height to the cornice plus the width of the window - and all the measurements. In reality, everything is much more complicated; many factors have to be taken into account.

Panel assembly coefficient (depending on the cut and style).
The width of the roll minus the edges of the curtain fabric.
Hem allowances.
Allowance for free sagging.
Allowances for the fastening method.
The direction of the ornament or texture of the material.
Removing the baguette beyond the brackets.
Additional cost for matching two curtains with a large pattern.

It is important to calculate the amount of material for cutting to avoid unpleasant surprises.

All calculations begin with the style of window decoration - there is no point in saving on the width of curtain fabric and the beauty of freely falling folds. It is also recommended to focus on the roll format and its relationship with the borders of the curtains. In most cases, a curtain covering the entire wall looks much better.

The location of the battery in the window sill niche is also taken into account. The choice of style and length often depends on their aesthetics and dimensions:

Short curtains in combination with long drapes;
Curtain to window sill;
Long curtain;
Multi-layer window decor with a complex cut.

The choice of curtain style will depend on the size and shape of the window, furniture and interior design in the room.

Only after really assessing the format of the window space covered by curtains can you begin to measure and sew the product yourself. Designers also recommend taking a small supply, at least half a meter. There may be defects inside the roll or errors in calculations.

The remainder can always be placed on sofa cushions, which will organically complement the interior.

Stage No. 2: determine the width of the curtains

Before you start measuring, secure the cornice in the right place so that you can accurately calculate the length and height. Typically, the cornice protrudes 15 cm on both sides of the window so that you can open the curtains and illuminate the room. Sometimes the railing is fixed from wall to wall.

The width of the canvas is determined by the length of the cornice and the type of desired curtain fastening. To calculate how much fabric you will need, you need to know the gathering factor.

InMyRoom tip:

When calculating the width of the curtain on both sides, you need to add 10 cm to the hem of the sides.

Curtain style and fabric consumption

The very name “curtain” (from the French store) means “window fabric drapery”. Each era had its own style in fashion, which is confirmed by the artists’ paintings. Initially, the window was covered with fabric (skins, fur) to insulate and regulate the flow of light into the room. Over time, certain types emerged:

Roman;
Austrian;
English;
French;
Italian.

It is worth clarifying that not all of them are directly related to the country of origin. Rather, it is a conditional design classification. Each variety requires its own type of cornice and assembly factor.

It is the style and the corresponding pattern that determines or emphasizes the style in interior design.

When calculating fabric for curtains, it is important to consider that there are:

multi-layer and single options;
trimmed with contrasting fabric on top or bottom;
into the assembly with a certain step (marquise) and into the drawstring on the tape;
with curly coattails, ruffles, frills,
with tiebacks and lambrequin;
with fringe, tassels and other accessories;
completely smooth - Japanese screened curtains, etc.

There is no single cutting formula, because each model is unique.

Some salons sew from their own material, others offer only tailoring. The estimated expense and cost of the work can be discussed with a specialist by phone or by filling out an online form where all the parameters are entered.

What is needed for accurate measurements

When taking measurements, many people make standard errors. It is important to eliminate errors, and the panel should cover the baseboard or even touch the floor covering with its edge.

The fabric is calculated for each individual element, and then everything is summed up and the footage is obtained, which will be correct for a particular option.

Even in panel houses, walls sometimes have curvature and height deviations in the corners. To do this, you need accurate measurements on both sides of the wall on which the cornice is. The difference usually does not exceed 1 cm, but there are deviations of up to 5 cm, although this cannot be determined visually.

Tip: To determine the average length of the curtain, hang a weight on a rope (plumb line) from the extreme point of the cornice. First on one side, then on the other, assessing the difference along the control line of the intended curtain. We derive the arithmetic average (add both measurements and divide in half).

It is always recommended to take into account the composition of textiles and carefully read the label, since natural components shrink by at least 10%.

Accurate measurements make it difficult to take radiators, balcony doors, and some decorative elements in interior design. A plumb line is the best way to accurately determine the correct size of a product.

Another important point is what the measurements are used with. You can use:

an ordinary school ruler, if nothing else is at hand;
a measuring tape (colloquially “centimeter”);
measuring tape.

A tape measure is preferred because it has the greatest length and does not twist or bend like a tape. With it, you do not need to summarize several measurements into a total footage, as with the use of rulers.

Light textiles drape in waves, while denser materials form clear folds, which should not be too many.

Important! Curvature or difference in height of the walls can be detected after sewing the curtains. Removing and altering them, leveling 1-2 cm, will be very difficult. It will take a lot of time and effort. It is much easier to interrupt the cornice by slightly moving one edge higher or lower.

Errors in width are also possible. It is easier to eliminate them by using a universal construction level with laser markings. Along the intended line, mark with a pencil and measure with a ruler the minimum width, to which allowances are added, a small margin in width for the removal of the baguette rod, for lush folds, etc.

The width of the selected fabric and the placement of the picture on the canvas play a primary role in calculating fabric consumption.

You will need a notepad for notes - it is easy to lose the sheet. Be sure to mark, for example, “measurements for the bedroom window” or “curtains for the living room” so as not to be confused. You should not calculate in your head and keep the parameters in your head, especially when you have to put off work for a while.

If you have to calculate the flow rate taking into account various coefficients, a calculator will come in handy. At the same time, it is easier to calculate the approximate cost of window decoration - cornice plus fabric, threads and fittings.

When the pattern is directed along the roll, its maximum width coincides with the maximum width of the finished curtain.

Curtain composition ideas

First you need to decide on the length of the models: you can make them just below the window sill or up to the floor, it all depends on the tastes of the needlewoman, the room in which they will be placed, and the combination of the curtain composition with the interior. In the bedroom you can make 2 curtains to the floor. Their length is the distance from the cornice to the floor. In the living room, curtains covering the entire height of the room will also look good.

Curtain diagram with dimensions.

Some kitchen interiors are decorated with curtains that are slightly lower than the window sill. The width is calculated taking into account drapery and seam allowances. To do this, add 10-50 cm to the size of the cornice for natural fabrics. For tulle, you can use a gathering factor from 2 to 3 or 1.5 - an economical option.

Kitchen curtains have their own characteristics. You can sew 3 models to double-hung windows: 2 of them are mounted on brackets with fishing line, covering each of the windows from their middle to the window sill. When unblinding, the models are moved to the window slopes, assembled, strengthened with accessories - original tiebacks, and the 3rd model is mounted on the cornice, its length is the distance from the cornice to the middle of the window or a little longer.

When opening the curtains, the model moves along the rail cornice to one of the window slopes, is assembled in the same way, and strengthened with decorative tiebacks. The model should cover the entire width of the window; it can be calculated as in the first case, taking into account drapery and allowances. A tailor's cm or tape measure is suitable for measuring.

How to correctly calculate the width: what is taken into account in the consumption of material for curtains

Before you independently calculate the width of the curtains, check whether complex double or triple curtains are needed.

If you want to hide the unsightly landscape of an industrial area outside a high-rise window, a single curtain made of thick fabric is enough.
The first floor or curious views from the windows of the house on the other side - if necessary, curtains should be easy to move along the eaves; complex folds are impractical.
When the main functionality is window decoration in interior design, it is better to choose stationary multi-layer curtains with beautiful folds and overlays; light should easily penetrate through the transparent curtain.
Night curtains are needed for shift workers, when during the day they have to fully rest in a darkened room.

If you are planning two curtains, then you should divide the length of the cornice by 2. Keep in mind that in some cases you may need an allowance for overlap in the central part of the cornice.

Pleated curtains and gather factor: what is it?

Before you start calculating curtains for a window, it is useful to look at the various styles in catalogs and illustrations. In most cases, the curtain is not just stretched along the cornice, but gathered with soft folds, which gives it special charm and luxury.

When buying window textiles, be sure to consider the cost of processing the edges.

Attention! For lush gathers, curtain tulle is collected not in length, but in width - the roll is unwound along the ceiling, repeatedly making soft folds or gathering on a special tape.

Some types of curtains require a special type of fastening. A regular baguette with rings for hinges is nailed approximately 5-12 cm above the window opening. The higher it is, the better it looks. Today, ceiling models of various formats are most relevant.

Direct.
Corner (for two windows in a corner room).
Round shape (for bay windows).

The approximate amount of fabric largely depends not only on the width of the roll, but also on the style, where the type of cornice plays an important role.

Many have seen curtains on rings - metal eyelets are placed directly on a round rod, the design gives soft folds at equal intervals. Accordingly, these coattails require additional footage.

Good to know! Each style and type of fastening to the cornice has its own assembly factor calculated:

flat fabric loops - multiply the width of the cornice by 1.5-2;
curtains on a special tape for uniform assembly - multiply by 2;
curtains with eyelets – coefficient 2;
dense fine collection - 2-2.5;
buffs – coefficient 2.5;
assemblies with sagging “awnings” – 3;
bow folds (triple folds) – 2-3, depending on frequency.

Eyelets in the form of metal or plastic rings emphasize the beauty of the cornice, which is important for modern styles.

To correctly calculate the footage, it is important to take basic measurements, taking into account all reserves and errors, multiply by KS - curtain assembly factor. It would be wrong to take some material at a discount from the remainder of the roll, and then decide which style to choose. Then the choice will be limited, but saving makes sense when sewing small curtains for the kitchen or loggia.

The eyelets glide easily, forming even folds with controlled pitch.

Calculation of fabric for curtains

Window decoration is one of the most important stages in creating an interior, because beautiful textiles always add coziness and complete the image of a room. We have compiled a short guide on how to correctly calculate the fabric for curtains for those who decide to order curtains or curtains.

To sew curtains, you will need several simple indicators that determine the total footage of the fabric:

·the width of the curtain multiplied by the gathering factor;

allowance for processing the edges of the canvas;

·a supply of fabric for symmetry of the pattern, if it is large and often repeated;

·allowance in case the material shrinks after washing.

Remember that fabric calculations for curtains should be done after installing the cornice, because... you will need its length and height relative to the floor or window sill level. It is more convenient to take all the necessary measurements not with a soft tape, but with a steel tape measure, so they will be more accurate.

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To measure the length of finished curtains, decide what type of curtains they will be:

·Up to the window sill – the lower edge of the canvas is 1 cm above the window sill level.

· Just below the window sill - the canvas hangs 10-15 cm below the window sill level.

·To the floor – the bottom edge of the curtains is 1 cm above the floor level.

·Maximum length – the fabric lies on the floor in a loose “train” of 5-10 cm.

Next, measure the distance from the cornice, from the rings or ceiling rail to the selected position of the curtains and write down the resulting figure.

Then add an allowance for the hem of the bottom edge - at least 15 cm, and for the hem of the top - 10 cm. In order not to get confused in the numbers, it is convenient to write this data in the form of a formula:

10 cm (fold at the top) + “clean” length of the product + 15 cm (fold at the bottom)

The next step is measuring the width of the canvas. To calculate the fabric for curtains with folds, you need:

·Measure the length of the cornice. In order for the curtains to be freely moved apart, the cornice should protrude 15-20 cm on both sides of the window opening.

·Determine the assembly factor. When calculating fabric for curtains on tape, the coefficient is 2, on loops – 1.5-2, on eyelets – 2, to create frequent “pencil” folds or puffs – 2.5.

Next, we multiply the length of the cornice by the assembly factor. To the resulting figure we add allowances for the side hems of the fabric - 10 cm on each side

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The footage of material with large or printed patterns should always be calculated taking into account the length of the repeat - a repeating print.

For example, if the pattern is repeated every 50 cm along the length of the fabric, then you need to buy 50-55 cm more fabric for a symmetrical fit. And this rule applies to both curtains, if there are two of them. That is, if the total length of two curtains is 5 meters, and the repeat length is 50 cm, then you need to buy 6 meters of fabric.

Remember that when choosing a material it is important to always consider the direction of the pattern and the width of the roll. If the pattern is located across the roll, then the width of the fabric can be made the height of the finished curtains, and if along it, it is necessary to include allowances for fitting.

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Gray color has long been proclaimed the “new black” not only in the fashion industry, but also in interior design. It is presented in dozens of shades, differing in warmth, intensity and undertone:

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If your soul yearns for change, and your gaze increasingly critically rests on the window, it means it’s time to change the curtains. But it is absolutely not necessary to buy new ones: there are many options to give a new look to already familiar drapes and curtains. One of these options is the fashionable lengthening of short curtains using color block technology.

When decorating a window, you probably strive to arrange the curtains in beautiful folds. One of the accessories that helps achieve the desired effect is curtain tape, or braid. It is sewn into the top of drapes or curtains to perform two functions at once: practical and decorative. The loops of the curtain tape are used for hanging on the hooks of the curtain rod, and the laces allow you to create aesthetic, uniform folds. But what they will be like depends on the type of curtain tape.

Designers sometimes suggest draping curtains not only on windows, but also on doors. At first glance, this seems overly original, but innovation actually goes back to the deep Middle Ages and even much more distant historical eras. This is evidenced by the very origin of the word curtains: the French term portiere was formed from the word porte - “door”. In the old days, curtains were used to drape doorways, to insulate rooms and protect against drafts.

The corner window is one of those architectural solutions that cause a lot of difficulties when developing interior design. However, the design of such window openings is a solvable task, and the achieved result may well be elegant, stylish, and effective. This is confirmed by a selection of photographs with examples of the decor of various corner windows - single, located on two adjacent walls and bay windows.

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The kitchen in most apartments and many cottages is a place not only for preparing culinary masterpieces, but also for morning coffee, family lunch, and dinner with friends. Therefore, I want to decorate the dining area in an elegant, sophisticated way, so that a pleasant atmosphere for meals reigns in the kitchen. Curtains made of light fabrics will help with this, they can give the corner by the window an aura of cozy charm, and, if you want, ethereal luxury.

How to correctly calculate the length of a curtain for a window: important recommendations and examples

The most accurate flow parameters will be obtained if you have a suitable cornice fixed above the window - all measurements are taken with a tape measure from its edge. At a minimum, the ends of the baguette should protrude 15-20 cm beyond the window opening. This is enough to open the curtains after the night and provide more daylight.

The length of the curtains is chosen not only for economic reasons, but also purely practically.

We can talk a lot about how to calculate the fabric for curtains, but a large length is not needed for the kitchen or children's room. In the living room or bedroom, long tulle is traditionally chosen, which can even lie on the floor.

It is better to leave a distance of 1 cm from the floor level to avoid rapid wear.

There is a general length standard:

curtain to the window sill (the lower edge should not touch it);
the edge below the window sill, to the level of the heating radiator, if this is a new aesthetic model with painting or a decorative panel;
the fabric reaches the baseboard or just above the floor, can be easily curtained and does not get dirty if pulled frequently;
complex romantic cut with tiebacks and draperies, the edges lie softly on the carpet or varnish polymer (perfect order is required, the fabric is prudently lifted onto the windowsill during cleaning).

Curtains will look much more attractive if the bottom edge ends with the whole pattern rather than part of it.

Helpful advice! For floor-length curtains, choose practical materials that are easy to wash and do not require ironing.

When you want to somehow update your window decoration with original decor with draperies, overlays or a lambrequin, it is important to take into account the KS. It is calculated additionally, but the shape of the pattern is taken as a basis. For asymmetrical models, they rely on the longest length of the pattern shape.

Stage No. 1: determine the length of the curtains

There are three traditional types of curtain lengths: to the window sill, below the window sill and to the floor.

To the windowsill

: the bottom edge of the curtain is 1 cm above the window sill - the fabric can be moved freely.

Below the window sill

: curtains look neater if they hang 10–15 cm below the window sill.

To the floor

: curtains end 1 cm above floor level to reduce wear and tear. You can also choose the length of the curtains so that the fabric falls to the floor.

To determine the length of the curtain, measure the distance from the top of the attached rail or from the base of the rings on the rail to the intended position of the curtains at the bottom. Ignore the hem allowances for now - they will need to be added later.

InMyRoom tip:

If possible, measure the window not with a centimeter, but with a steel tape measure - it is longer and allows you to take measurements more accurately.

How to calculate the width of curtains: recommendations from experts

You can come up with any style with unimaginable decor, but everything is determined by the width of the fabric roll. Often, markings are printed at the edge of the roll, and small flaws and creases are possible. It is necessary to inspect the cut when purchasing - the buyer has the right to refuse a piece with defects even if the receipt is punched.

The fabric has edges that are cut off when sewing curtains - they pull the edge and interfere with soft draperies.

Important! To eliminate errors, before making calculations, we mentally unfold the roll from floor to ceiling or along the baguette rod, taking into account multiple folds.

When calculating using any formula, all conditions must be met, for example, the height of the curtains should not exceed the roll format (minus the edge). Their measurements are multiplied by the assembly factor and adjusted to the length of the cornice. This is the basis of calculations if the direction of the roll is along the cornice.

Some people prefer to leave a small strip of material above the mounting tape in the form of a scallop or edge, which gives a beautiful fold and successfully covers the cornice.

If the height of a curtain is calculated - from the floor to the baguette, accurate calculations from the edge of the round rod to the floor itself are important, the style (curtain length and method of fastening) is taken into account, as well as adjustments for hemming.

In some cases, the roll is not enough in width or length. Then several panels of the same material are carefully sewn together, hiding the seams in soft folds and draperies. The consumption is multiplied by the number of pieces of fabric. If the curtains and drapes have a pattern, it must match exactly - this is an additional expense. There is also a standard gathering factor for different types of fabric:

thin veil and curtain with a small pattern - KS 2;
curtain fabric – KS 1.7;
organza without pattern for awning assembly – KS 3.

When using mounting tape, as the most budget-friendly and popular design option, take two widths of curtain tape.

Measurements needed to calculate fabric consumption for sewing curtains

To calculate how much fabric is needed to sew curtains, you need to know two measurements.

The first (L) is the length of the cornice, which is measured using a measuring tape or a folding meter;
The second (H) is, in fact, the length of the future curtain. The size of this measurement depends on the length of the curtain (the curtain can be up to the floor, up to the window sill, ¾ of the height of the wall, etc. - i.e. it completely depends on your taste, imagination, as well as the style of your room). The size of this measurement is also influenced by the type of cornice and the method of processing the top of the curtain. You must immediately determine how you will process the top of the curtain - whether it will be curtain braid, or hanging thread loops, or large fabric loops. By default, this measurement is taken from the top edge of the cornice.

Practical calculation examples

The meter across the width of the canvas is the length of the cornice multiplied by the KS (assembly coefficient).
The meter in height is the height from the cornice to the floor (another length) plus the margin for the hem (the bottom is separate, the top depends on the method of fastening), we add an adjustment to match the pattern.
Fabrics with a large pattern, periodically repeated along the roll, are positioned so that it is entirely visible at the top or bottom of the curtain, depending on the design. When calculating, we sum up the length of the pattern repeat plus the additional cost for the full height.
Sometimes the material puffs up when folds are formed, add another 3-5 cm for free sagging.

How to calculate fabric for curtains with a large pattern

As in other cases, the assembly factor is taken into account here. Another important point is maintaining the symmetry of the pattern. To do this, you need to cut out one canvas, attach the rest of the material to it, combining the ornament, and then cut the second canvas.

It is important to remember that curtains with a large pattern mean an increase in the total footage. How much more fabric is needed depends on the length of the repeating pattern (rapport). This rule applies to every panel. The amount of repeat can be determined by the boundaries of the repeating pattern. For example, the total footage of two curtains is 5.2 m, and the height of the repeat is 30 cm, which means that for sewing curtains you will need 5.8 m. The remains from too large a repeat can be used to create tiebacks or decorative pillows.

VIDEO: How to determine the size of curtains.

A beautifully designed window is an important detail in interior design. Decorating windows with textiles gives the room coziness and retains the heat escaping through the window openings. Sewing curtains in a specialized salon usually costs an exorbitant amount. If desired, you can make them yourself. At the same time, before purchasing fabric, it is important to take correct measurements and not make mistakes in the calculations.

We calculate wisely

How to calculate the fabric for curtains - such a task seems difficult to accomplish, but this is only at first glance. You just need to know that the required footage is determined by the sum of several terms:

curtain length,
width multiplied by the build factor,
allowances for processing edges,
allowance for possible shrinkage of the fabric,
reserve for the symmetry of the pattern if the curtains have a large repeating pattern.

Measurements are more accurate when using a long metal tape measure rather than a flexible measuring tape.

Attention! It is possible to calculate the fabric for curtains correctly only after installing the curtain rod and measuring its length and the interval from it to the floor (or window sill).

Calculation of fabric length

First, find the distance from the cornice to the desired end point - the floor or window sill. This will be the finished length of the product. According to the wishes and ideas of the home owners, curtains can:

reach the floor, 1-2 cm without touching it to avoid wear,
reach the floor and lie on it with a “trail” of 5 to 10 cm,
be the length of the window sill, without reaching the bottom edge of the curtain to its surface by 1 cm,
fall below the window sill by 10-15 cm.

Then, for a more accurate calculation of the fabric, you need to know the method in which the curtain will be hung on the cornice. There are several types of fastening:

A special curtain braid, the loops of which will catch the hooks of the curtain rod. Two strong threads are stretched along the ribbon for a neat and beautiful assembly of the fabric. If, for example, the braid is 7 cm, you will need 14 cm of fabric for a double hem. Plus 2-3 cm on the side at the top.
Loops or ties sewn to the top finished edge of a curtain.

Calculation of material by width

The fabric consumption for curtains by width is calculated taking into account three parameters:

cornice length;
fabric gathering factor;
allowances for processing side seams.

First, the working length of the supporting rod of the cornice is measured. According to the rules, the cornice should protrude 20-25 cm from the window on both sides, so that the curtains can be freely moved apart to provide sufficient illumination of the room. The resulting value is multiplied by the gathering factor (folds). It is sometimes called the fluffiness factor. Uniform, beautiful drapery is associated with the density and texture of the fabric. The thinner and more airy the matter, the greater the amount will be permissible. So, for tulle and organza the gathering factor will be from 2 to 4, for heavy ones - 1.5-2.

For example, with a cornice length of 3 m, calculating the width of one curtain looks like this:

3 m: 2(number of panels) x 2(assembly ratio) = 3 m(width of one panel).

To the resulting figure, do not forget to add 2 cm on each side for processing the side edges. You also need to take into account a small allowance of 5-7 cm for the overlap at the “meeting” point of the drawn curtains.

The number of folds also depends on the presence of the pattern: the larger it is, the less the curtain needs folds, since they will only interfere with the perception of the texture of the material.

Shrinkage allowance

To hem the bottom edge of the curtain, add 5-8 cm to the length of the finished product, insuring yourself in case the canvas “shrinks,” that is, decreases in size both in length and width. This reserve depends on the type of fabric: natural fabrics made of cotton, wool, silk, linen shrink more, up to 10% of the original length. According to all the rules of sewing technology, before cutting any product (clothes or curtains), all fabrics must undergo decatification - soaking in water or steam treatment. This is done so that the fabric has time to “shrink” in advance and the inevitable washing does not deform the already sewn item.

Stock for curtains with large prints

A large (floral or geometric - it doesn’t matter) pattern on both curtains should be located symmetrically for an aesthetic appearance.

First, one canvas is cut. Then the remaining fabric is placed side by side, the pattern on both halves is combined, and only then the second curtain is cut out. The yardage of fabric for curtains with large patterns is always increased by the length of the repeating motif - the so-called rapport, and for each panel. The amount of rapport is determined by the boundaries beyond which the pattern is repeated.

For example, if two curtains have a length of 5, and the repeat length is 40 cm, then you will have to buy 5 m 80 cm (5 m + 40 cm + 40 cm). The larger the drawing, the greater the financial costs for additional centimeters.

Folds for Roman blinds: sewing example

Roman blinds are a type of lifting curtains that are sewn from smooth fabric.

Folds are created during the lifting of the fabric: thin wooden slats are used to form them, acting as a weighting agent.

Making similar Roman blinds with your own hands and forming a fabric assembly is not so difficult. To do this, you only need to follow relatively simple instructions and be able to handle sewing accessories.

The process of making a Roman blind is as follows:

Types of folds in Roman blinds.

First you need to prepare the fabric of the selected shade. One piece can be used for the front side, and the second for the back. But this is not a necessary condition. You can make a curtain for the kitchen, for example, from one piece of canvas. The fabric is cut and then carefully ironed.
Then you need to prepare slats made of wood or metal, which will act as weights for the curtains and form folds. To form an assembly, you first need to calculate the step at which the folds will go. It all depends on the exact height of the window. The shape of the folds does not matter. After lifting the fabric from the bottom of the canvas, horizontal free folds begin to form, running one above the other.

The size and number of folds during assembly are determined based on the following data:

with a window height of 145 cm, the number of folds is 7, and the step between them is 19.3 cm;
with a window height of 150 cm, the number of folds is 7, and the step between them is 20 cm;
with a window height of 160 cm, the number of folds is 7, and the step between them is 20.7 cm;
with a window height of 170 cm, the number of folds is 7, and the step between them is 22.7 cm;
with a window height of 190 cm, the number of folds is 7, and the step between them is 25.3 cm, etc.

The markings are applied to the fabric with a piece of soap. When marking, it is necessary to take into account that a pocket is needed to fasten the slats. Therefore, a small amount of distance will be “eaten up”. The slats themselves must be cut so that their length is slightly less than their width. After installation, there will be room for hemming seams. The pockets are stitched on a sewing machine, after which slats need to be inserted into them. But the assembly of folds is not finished yet. It is necessary to take plastic or metal rings with a diameter of 10-12 cm, through which the ribbons will be passed to control the curtain.

Rings of 3-4 pieces in a row are carefully sewn to the pockets of the curtain folds. The edges should be processed. Next, laces or ribbons are pulled through the rings, their edges are sewn to the top fabric, and decorative beads can be attached to the bottom. For such curtains, special curtain rods are usually used, on which they are hung after the sewing is completed.

Some nuances when determining footage

The pattern on fabrics most often goes edge to edge, but there is also a direction along it.

Important! When purchasing fabric for curtains, you should consider the width of the roll and the direction of the pattern.

Curtain fabric is produced in rolls of the following widths: 1.4 m; 2.8 m; 3m.

When the pattern is placed transversely relative to the roll, the width of the fabric in the roll can be made the height of the finished curtain. In another scenario, the number of meters purchased is doubled, and a percentage is added for matching the pattern.

Knowledge of the principles of the sewing craft and some of the nuances of technology will allow even a novice dressmaker to competently measure fabrics and beautiful curtains of a simple style.