Technical guide — diagrams preserved

DOUBLE CURTAIN MEASURE GUIDE

How to measure accurately for double S-Fold / Wave Fold curtains

What you’ll need to measure

1-2 people
less than 5 mins

Materials

your tape measure (metal tape measure only)
your step ladder
a pen and some paper

Before you start

Confirm the mounting position

Decide whether the two tracks will be ceiling fitted or wall fitted before taking any dimensions. That choice sets the reference points for both the sheer and blockout layers.

Note any cornices

If the room has cornices, identify where the tracks can sit in relation to the inside edge before measuring.

Identify the fixing surface

Check the fixing surface for both tracks. Wall studs and ceiling battens are generally the strongest fixing points; other substrates need suitable fixings.

Plan motorisation before ordering

If either layer will be motorised, allow for the motor position, power or battery access and track spacing before the order dimensions are finalised.

Plan motorisation at the same time as the track layout so the motor position and cable or battery access are considered before the order is placed.

Compare fabric samples in the room

Compare the sheer and blockout fabrics together in the room so you can judge colour, texture and light control before ordering.

Create your perfect curtains

For this setup, start by imagining how your new curtains will transform your space. Select the look, feel, and finish that suits your home, then customise your curtains to fit beautifully and work exactly the way you need

At this stage, this guide is designed specifically for measuring double curtains, covering everything you need to measure both the front and rear curtain tracks. If you’re only installing a single curtain, visit our Single Curtain Measuring Guide instead. For more complex installations, we also have dedicated guides for Corner Windows, Bay Windows, and Box Window curtain setups.

For the measurements, choose a ceiling fit or wall fit to get started.

Choose the tab that matches the mounting method you are measuring.

Ceiling fit curtains

Before moving on, create the illusion of greater height with ceiling-mounted curtains. They are ideal for straight-edged ceilings and can also be fitted inside cornices. For the most secure installation, curtain tracks should be fixed into ceiling battens or another suitable structural surface.

For this setup, add motorisation for effortless operation, with a choice of wired or battery-powered curtain motors.
At this stage, choose sheer curtains for a soft, light-filled look, or blockout fabrics for improved light control and privacy.
For the measurements, select lined curtains for enhanced thermal insulation, improved light control and a luxurious, full-bodied finish.
When configuring this option, combine sheer and blockout curtains on a double-track system to create flexible day-and-night privacy.
Choose from three floor finishes: just off the floor, touching the floor or puddled.
Before moving on, select a left stack, right stack, centre opening or multiple openings to suit your windows, doors and access requirements.
For this setup, choose from our half-moon or designer curtain tracks, available in white, black or silver to complement your interior.
At this stage, select your preferred curtain hem for the ideal finished appearance.
For the measurements, for taller curtains, choose a longer operating wand or select no wand for a cleaner look.
When configuring this option, choose between a fixed-flow track, where each curtain panel follows a predetermined path, or a free-flow track that allows the panels to move more freely.
Use an S-Fold / Wave Fold heading for the consistent ripple profile used across this curtain range.
Before moving on, for a designer double-curtain arrangement, position S-fold sheers on the front track.
For double curtains, keep the sheer and blockout layers on the S-Fold / Wave Fold system and use the spacing specified for the selected double track.
For this setup, mix and match your floor finishes. Puddled sheers create a relaxed, luxurious look, while rear blockout curtains can sit just above the floor for easier operation.
At this stage, built-in pelmets should have a minimum internal depth of 250 mm to comfortably accommodate a double-track curtain system.
For the measurements, curtains can also be paired with roller blinds to provide even greater control over light, privacy and insulation.

When configuring this option, looking for something more distinctive? Contact us to discuss designer curtain rods, custom track options and our wider range of curtain fabrics.

Choose the tab that matches the mounting method you are measuring.

Wall fit curtains

Create a luxurious, designer look by extending your curtains across the full width of your wall. Wall fit curtains are best secured into wall studs for maximum stability, but they can also be fixed to suitable concrete, stone, brick, or tile surfaces.

Customise your curtains to suit your space:

Before moving on, • Add motorisation for everyday comfort, with your choice of wired or battery-powered motors
• Choose sheer curtains for a soft, airy feel, or blockout fabrics to help reduce light entering the room
• Select lined curtains for improved insulation, fullness, and a more luxurious finish
• Select your preferred drop finish: just off the floor, touching the floor, or puddled
• Pick a left stack, right stack, centre opening, or multiple openings for easier access to windows and doors
• Select a designer track in white, black, or silver to complement your home
• Select your ideal hem style
• For longer curtain drops, consider a longer wand or choose no wand at all
• Layer sheer and blockout curtains on a double track for flexible light control and privacy
• Choose between a fixed flow or free flow track operation
• Create a modern, luxurious look with S-Fold / Wave Fold curtains, or choose S-Fold / Wave Fold curtains for a timeless finish
• Pair your curtains with roller blinds for even greater control over light and privacy

Choose the tab that matches the mounting method you are measuring.

Ceiling fit curtains

For this setup, create the illusion of greater height with ceiling-mounted curtains. They are ideal for straight-edged ceilings and can also be fitted inside cornices. For the most secure installation, curtain tracks should be fixed into ceiling battens or another suitable structural surface.

At this stage, add motorisation for effortless operation, with a choice of wired or battery-powered curtain motors.
For the measurements, choose sheer curtains for a soft, light-filled look, or blockout fabrics for improved light control and privacy.
When configuring this option, select lined curtains for enhanced thermal insulation, improved light control and a luxurious, full-bodied finish.
Before moving on, combine sheer and blockout curtains on a double-track system to create flexible day-and-night privacy.
Choose from three floor finishes: just off the floor, touching the floor or puddled.
For this setup, select a left stack, right stack, centre opening or multiple openings to suit your windows, doors and access requirements.
At this stage, choose from our half-moon or designer curtain tracks, available in white, black or silver to complement your interior.
For the measurements, select your preferred curtain hem for the ideal finished appearance.
When configuring this option, for taller curtains, choose a longer operating wand or select no wand for a cleaner look.
Before moving on, choose between a fixed-flow track, where each curtain panel follows a predetermined path, or a free-flow track that allows the panels to move more freely.
Use an S-Fold / Wave Fold heading for the consistent ripple profile used across this curtain range.
For this setup, for a designer double-curtain arrangement, position S-fold sheers on the front track.
For double curtains, keep the sheer and blockout layers on the S-Fold / Wave Fold system and use the spacing specified for the selected double track.
At this stage, mix and match your floor finishes. Puddled sheers create a relaxed, luxurious look, while rear blockout curtains can sit just above the floor for easier operation.
For the measurements, built-in pelmets should have a minimum internal depth of 250 mm to comfortably accommodate a double-track curtain system.
When configuring this option, curtains can also be paired with roller blinds to provide even greater control over light, privacy and insulation.

Before moving on, looking for something more distinctive? Contact us to discuss designer curtain rods, custom track options and our wider range of curtain fabrics.

Choose the tab that matches the mounting method you are measuring.

Wall fit curtains

Create a luxurious, designer look by extending your curtains across the full width of your wall. Wall fit curtains are best secured into wall studs for maximum stability, but they can also be fixed to suitable concrete, stone, brick, or tile surfaces.

Customise your curtains to suit your space:

For this setup, • Add motorisation for everyday comfort, with your choice of wired or battery-powered motors
• Choose sheer curtains for a soft, airy feel, or blockout fabrics to help reduce light entering the room
• Select lined curtains for improved insulation, fullness, and a more luxurious finish
• Select your preferred drop finish: just off the floor, touching the floor, or puddled
• Pick a left stack, right stack, centre opening, or multiple openings for easier access to windows and doors
• Select a designer track in white, black, or silver to complement your home
• Select your ideal hem style
• For longer curtain drops, consider a longer wand or choose no wand at all
• Layer sheer and blockout curtains on a double track for flexible light control and privacy
• Choose between a fixed flow or free flow track operation
• Create a modern, luxurious look with S-Fold / Wave Fold curtains, or choose S-Fold / Wave Fold curtains for a timeless finish
• Pair your curtains with roller blinds for even greater control over light and privacy

Let’s get measuring. We’ll guide you through each step to make the process quick and easy.

Need to change mounting type? At this stage, pick the correct tab above for relevant instruction.

Ceiling fit Curtains

Alright, it’s time to start measuring. We’ll guide you through it step by step.

1 Verify your depth

For the measurements, if your home has built-in pelmets, ensure they provide a minimum internal depth of 250 mm to accommodate double curtains.

When configuring this option, our double curtain systems typically project 220–250 mm from the wall, depending on your selected curtain style. For the most space-efficient option, choose S-fold sheers paired with pencil pleat or inverted pleat blockout curtains, requiring as little as 220 mm of depth.

2 Measure the required width

Before moving on, take the exact measurement of the width of your ceiling from wall to wall and record the measurement. If your room has cornices, measure between their inside edges. This measurement will become your track width.

For this setup, you do not need to calculate the fabric width—we will determine the perfect amount based on your track width.

3 Set any split positions (optional)

At this stage, for multiple openings, you can choose 1 or 2 splits and enter their exact positions. Curtain splits are ideal for un even window positions, bi-fold and sliding doors, making it easier to move sections of the curtain aside for access.

For the measurements, select the number of splits you would like. If no split measurements are entered, we will space them evenly across the track.

When configuring this option, if you do not want any splits, continue to Step 3.

Before moving on, for one custom split, run the tape from the left side of the track to where you would like the split to sit, then record the measurement.

For this setup, for two custom splits, run the tape from the left side of the track to each split position, then record both measurements.

4 Measure the curtain drop

At this stage, run the tape from the ceiling down to the floor on the left, middle, and right side of your window. If you have cornices, run the tape from the inside edge of the cornice.

For the measurements, write down the largest of the three measurements. If the difference between your measurements is more than 10 mm, we suggest choosing a puddled finish.

5 Select the floor finish

When configuring the curtain, select one of the three floor-finish options below.

Enter the measurements exactly as taken. Do not add or subtract from the dimensions yourself; the selected finish allowance is handled during production.

When configuring this option, if you choose Just Off the Floor, your curtains will be made approximately 5–10 mm shorter than your drop measurement, so they sit just above the floor.

Before moving on, if you choose Touching the Floor, your curtains will gently skim the floor by up to 5 mm.

If you choose Puddling, your curtains will puddle on the floor by approximately 20 mm. For a deeper puddle, add a note in the checkout comments.

For this setup, you can also combine two different curtain finishes for a beautifully layered look. Be sure to note your preferred finish for each curtain. For a timeless designer style, pair puddled sheers with blockout curtains that sit just above the floor behind them, creating a soft, relaxed finish.

6 Select the stack direction and track flow

Select the wand size you need. Longer curtain drops generally work better with a longer wand for comfortable everyday operation.

Next choose the stack arrangement: left, right, centre opening or multiple openings. Choose the stack direction around everyday access, nearby obstructions and the part of the opening used most often.

At this stage, if you choose motorisation with centre opening curtains, select the side you would like the motor positioned on. Motorisation is not available for curtains with multiple openings, but we will confirm your motor fits without you needing to adjust your measurements.

Finally, select either a fixed-flow or free-flow track. A free-flow track allows the curtain panels to be moved and stacked freely along the track. Motorisation is not compatible with a free-flow track.

7 Complete Your Custom Double Curtain Order Online

With the dimensions complete, enter the curtain order online. The hem finish is chosen during the online configuration. Do not make a separate hem allowance; that adjustment is applied for you.

Enter the measured dimensions in millimetres (mm) exactly as taken, without altering them for the chosen finish.

For the measurements, if you select the wall-to-wall option on the product page, we will make a small deduction from your track width so the track fits neatly between your walls or cornices. For ceiling fit curtains, a wall-to-wall installation usually provides the best result.

If you would like your curtains to frame your window, we suggest a wall fit installation and adding at least 30% to your window width measurement. This can also work on a ceiling fit curtain. Confirm there are no obstructions on either side of the window based on your new track width.

When configuring this option, when measuring this way, select standard fit on the product page, not wall to wall. Your track will then be made to your exact measurement so it frames your window beautifully. Please do not make any deductions yourself.

Design & Order

Need to change mounting type? Before moving on, pick the correct tab above for relevant instruction.

Wall fit Curtains

Alright, it’s time to start measuring. We’ll guide you through it step by step.

1 Measure the required width

For curtains covering the entire wall:
For this setup, measure the full width from one wall to the other and record this measurement as your track width.

For curtains framing your window:
At this stage, measure the width of the window frame or recess across the top, then add approximately 30% to allow the curtains to stack neatly beyond each side of the window.

For the measurements, for example, if your window measures 2000 mm wide, adding 30%—or 600 mm—will give you a track width of 2600 mm.

When configuring this option, once you have calculated your track width, check that there are no walls, doors, light switches or other obstructions within the extended area.

Before moving on, you do not need to calculate the amount of fabric required. We will determine this for you based on the track width provided.

2 Set any split positions (optional)

For this setup, for multiple openings, you can choose one or two splits and specify exactly where you would like them positioned. Splits are particularly useful for bi-fold and sliding doors, allowing sections of the curtain to move independently for easier access.

At this stage, select the number of splits required and provide their measurements. If no split locations are specified, we will space them evenly across the track.

For the measurements, if you do not require any splits, continue to Step 3.

When configuring this option, for one custom split, run the tape from the left end of the track to your preferred split position and record this measurement.

Before moving on, if you are “framing” your window, confirm to take into account where your track will start after adjusting for stack back when determining the split position.

For this setup, for two custom splits, run the tape from the left end of the track to each preferred split position and record both measurements.

At this stage, when measuring from the outer left edge of the window frame or recess, add the required left-side stack allowance to each applicable measurement. This allows the curtains to stack clear of the window glass. Record the adjusted totals as your split locations.

3a

Mark the starting measurement

For the measurements, using a pencil, mark the height where the top of your curtain track will be installed. Use the ceiling or window frame as a guide to ensure the marks remain level across the full width.

When configuring this option, for the best support, we suggest fixing the track into wall studs wherever possible.

Before moving on, the measurement you provide should be taken to the top of the curtain track, not to the top of the finished curtain fabric. With S-Fold / Wave Fold curtains, there will naturally be a small gap between the track and where the curtain fabric begins.

3b

Measure the curtain drop

For this setup, to determine the correct curtain drop, follow these simple steps:

At this stage, for this curtain configuration, run the tape from the top of where your curtain track will be mounted down to the finished floor on the left, centre, and right sides of the opening. Record all three measurements.
For the measurements, compare the measurements and use the largest one as your curtain drop.
When configuring this option, if there is more than 10 mm difference between the three measurements, we suggest selecting a puddled finish to achieve the best result.

4 Select the floor finish

When configuring the curtain, select one of the three floor-finish options below.

Enter the measurements exactly as taken. Do not add or subtract from the dimensions yourself; the selected finish allowance is handled during production.

Before moving on, if you choose Just Off the Floor, your curtains will be made approximately 5–10 mm shorter than your drop measurement, so they sit just above the floor.

For this setup, if you choose Touching the Floor, your curtains will gently skim the floor by up to 5 mm.

If you choose Puddling, your curtains will puddle on the floor by approximately 20 mm. For a deeper puddle, add a note in the checkout comments.

5 Select the stack direction and track flow

Select the wand size you need. Longer curtain drops generally work better with a longer wand for comfortable everyday operation.

6 Complete Your Custom Double Curtain Order Online

With the dimensions complete, enter the curtain order online. The hem finish is chosen during the online configuration. Do not make a separate hem allowance; that adjustment is applied for you.

Enter the measured dimensions in millimetres (mm) exactly as taken, without altering them for the chosen finish.

Design & Order

Need to change mounting type? Before moving on, pick the correct tab above for relevant instruction.

Ceiling fit Curtains

Alright, it’s time to start measuring. We’ll guide you through it step by step.

1 Verify your depth

For this setup, if your home has built-in pelmets, ensure they provide a minimum internal depth of 250 mm to accommodate double curtains.

At this stage, our double curtain systems typically project 220–250 mm from the wall, depending on your selected curtain style. For the most space-efficient option, choose S-fold sheers paired with pencil pleat or inverted pleat blockout curtains, requiring as little as 220 mm of depth.

2 Measure the required width

For the measurements, take the exact measurement of the width of your ceiling from wall to wall and record the measurement. If your room has cornices, measure between their inside edges. This measurement will become your track width.

When configuring this option, there’s no need to calculate the fabric width—we’ll determine the perfect amount based on your track width.

3 Set any split positions (optional)

Before moving on, for multiple openings, you can choose 1 or 2 splits and enter their exact positions. Curtain splits are ideal for un even window positions, bi-fold and sliding doors, making it easier to move sections of the curtain aside for access.

For this setup, select the number of splits you would like. If no split measurements are entered, we will space them evenly across the track.

At this stage, if you do not want any splits, continue to Step 3.

For the measurements, for one custom split, run the tape from the left side of the track to where you would like the split to sit, then record the measurement.

When configuring this option, for two custom splits, run the tape from the left side of the track to each split position, then record both measurements.

4 Measure the curtain drop

Before moving on, run the tape from the ceiling down to the floor on the left, middle, and right side of your window. If you have cornices, run the tape from the inside edge of the cornice.

For this setup, write down the largest of the three measurements. If the difference between your measurements is more than 10 mm, we suggest choosing a puddled finish.

5 Select the floor finish

When configuring the curtain, select one of the three floor-finish options below.

Enter the measurements exactly as taken. Do not add or subtract from the dimensions yourself; the selected finish allowance is handled during production.

At this stage, if you choose Just Off the Floor, your curtains will be made approximately 5–10 mm shorter than your drop measurement, so they sit just above the floor.

For the measurements, if you choose Touching the Floor, your curtains will gently skim the floor by up to 5 mm.

If you choose Puddling, your curtains will puddle on the floor by approximately 20 mm. For a deeper puddle, add a note in the checkout comments.

When configuring this option, you can also combine two different curtain finishes for a beautifully layered look. Be sure to note your preferred finish for each curtain. For a timeless designer style, pair puddled sheers with blockout curtains that sit just above the floor behind them, creating a soft, relaxed finish.

6 Select the stack direction and track flow

Select the wand size you need. Longer curtain drops generally work better with a longer wand for comfortable everyday operation.

Before moving on, if you choose motorisation with centre opening curtains, select the side you would like the motor positioned on. Motorisation is not available for curtains with multiple openings, but we will confirm your motor fits without you needing to adjust your measurements.

7 Complete Your Custom Double Curtain Order Online

With the dimensions complete, enter the curtain order online. The hem finish is chosen during the online configuration. Do not make a separate hem allowance; that adjustment is applied for you.

Enter the measured dimensions in millimetres (mm) exactly as taken, without altering them for the chosen finish.

For this setup, if you select the wall-to-wall option on the product page, we will make a small deduction from your track width so the track fits neatly between your walls or cornices. For ceiling fit curtains, a wall-to-wall installation usually provides the best result.

At this stage, when measuring this way, select standard fit on the product page, not wall to wall. Your track will then be made to your exact measurement so it frames your window beautifully. Please do not make any deductions yourself.

Design & Order

Need to change mounting type? For the measurements, pick the correct tab above for relevant instruction.

Wall fit Curtains

Alright, it’s time to start measuring. We’ll guide you through it step by step.

1 Measure the required width

For curtains covering the entire wall:
When configuring this option, measure the full width from one wall to the other and record this measurement as your track width.

For curtains framing your window:
Before moving on, measure the width of the window frame or recess across the top, then add approximately 30% to allow the curtains to stack neatly beyond each side of the window.

For this setup, for example, if your window measures 2000 mm wide, adding 30%—or 600 mm—will give you a track width of 2600 mm.

At this stage, once you have calculated your track width, check that there are no walls, doors, light switches or other obstructions within the extended area.

For the measurements, you do not need to calculate the amount of fabric required. We will determine this for you based on the track width provided.

2 Set any split positions (optional)

When configuring this option, for multiple openings, you can choose one or two splits and specify exactly where you would like them positioned. Splits are particularly useful for bi-fold and sliding doors, allowing sections of the curtain to move independently for easier access.

Before moving on, select the number of splits required and provide their measurements. If no split locations are specified, we will space them evenly across the track.

For this setup, if you do not require any splits, continue to Step 3.

At this stage, for one custom split, run the tape from the left end of the track to your preferred split position and record this measurement.

For the measurements, if you are “framing” your window, confirm to take into account where your track will start after adjusting for stack back when determining the split position.

When configuring this option, for two custom splits, run the tape from the left end of the track to each preferred split position and record both measurements.

Before moving on, when measuring from the outer left edge of the window frame or recess, add the required left-side stack allowance to each applicable measurement. This allows the curtains to stack clear of the window glass. Record the adjusted totals as your split locations.

3a

Mark the starting measurement

For this setup, using a pencil, mark the height where the top of your curtain track will be installed. Use the ceiling or window frame as a guide to ensure the marks remain level across the full width.

At this stage, for the best support, we suggest fixing the track into wall studs wherever possible.

For the measurements, the measurement you provide should be taken to the top of the curtain track, not to the top of the finished curtain fabric. With S-Fold / Wave Fold curtains, there will naturally be a small gap between the track and where the curtain fabric begins.

3b

Measure the curtain drop

When configuring this option, to determine the correct curtain drop, follow these simple steps:

Before moving on, for this curtain configuration, run the tape from the top of where your curtain track will be mounted down to the finished floor on the left, centre, and right sides of the opening. Record all three measurements.
For this setup, compare the measurements and use the largest one as your curtain drop.
At this stage, if there is more than 10 mm difference between the three measurements, we suggest selecting a puddled finish to achieve the best result.

4 Select the floor finish

When configuring the curtain, select one of the three floor-finish options below.

Enter the measurements exactly as taken. Do not add or subtract from the dimensions yourself; the selected finish allowance is handled during production.

For the measurements, if you choose Just Off the Floor, your curtains will be made approximately 5–10 mm shorter than your drop measurement, so they sit just above the floor.

When configuring this option, if you choose Touching the Floor, your curtains will gently skim the floor by up to 5 mm.

If you choose Puddling, your curtains will puddle on the floor by approximately 20 mm. For a deeper puddle, add a note in the checkout comments.

5 Select the stack direction and track flow

Select the wand size you need. Longer curtain drops generally work better with a longer wand for comfortable everyday operation.

6 Complete Your Custom Double Curtain Order Online

With the dimensions complete, enter the curtain order online. The hem finish is chosen during the online configuration. Do not make a separate hem allowance; that adjustment is applied for you.

Enter the measured dimensions in millimetres (mm) exactly as taken, without altering them for the chosen finish.

Design & Order