Centimeters to Inches Converter
Roller Shades, Cellular Shades, Dual Shades
Before you begin measuring, note any obstructions such as door and / or window hardware that protrudes, heating pipes, or inward-turning doors and windows.
For more information on installation clearances and final dimensions, please click below to view the detailed size specifications for your selected shades type:
Choose a Mount Type: Inside Mount or Outside Mount
Inside Mount
Step 1: Measure Width ①/②/③
Measure the width in 3 places. For width, use the shortest measurement to the nearest 1/8".
Order Width = The shortest of the three measurements
Note: Do not take any deductions for clearance. The manufacturer will take a 3/16"(4.8mm) deduction off the overall width for a perfect fit.
Step 2: Measure Height ④/⑤/⑥
Measure the height in 3 places. For height, use the longest measurement to the nearest 1/8".
Order Height = The longest of the three measurements
Step 3: Measure Depth ⑦
Different types of valances require different mounting depths. Click here to view the recommended mounting depths for each shade type .
Friendly reminder: If the actual mounting depth is less than the recommended value, the valance may extend beyond the window frame.
Outside Mount
Step 1: Measure Width ①
Measure width to be covered. We recommend 1½" (3.8 cm) - 3" (7.6 cm) overlap on each side of the window (3"-6" (7.6-15.2 cm) total) for optimum light control and privacy.
Order Width = The area you wish to cover (Window width + 3"~6" (7.6-15.2 cm))
Step 2: Measure Height ②
Determine the location for the valance installation, and measure the height to be covered starting from the top of the valance installation point. (Please note: the height of your shade order includes the valance, fabric, and hem.)
We recommend adding at least 6 inches (15.2 cm) to the height of the window frame to allow space for the valance installation and to achieve optimal light control and privacy.
Order Height = The area you wish to cover (Window height + at least 6" (15.2 cm))
Note: Outside mount shades will have no deductions taken at the factory. They will be made according to your exact measurements.
Zebra Shades, Roman Shades, Woven Wood Shades, Shangri-La Sheer Shades
Before you begin measuring, note any obstructions such as door and / or window hardware that protrudes, heating pipes, or inward-turning doors and windows.
For more information on installation clearances and final dimensions, please click below to view the detailed size specifications for your selected shades type:
- Zebra Shades
- Cordless Roman Shades
- Plain Fold / Soft Fold Roman Shades
- Woven Wood Shades
- Shangri-La Sheer Shades
Choose a Mount Type: Inside Mount or Outside Mount
Inside Mount
Step 1: Measure Width ①/②/③
Measure the width in 3 places. For width, use the shortest measurement to the nearest 1/8".
Order Width = The shortest of the three measurements
Note: Do not take any deductions for clearance. The manufacturer will take a 3/16"(4.8mm) deduction off the overall width for a perfect fit.
Step 2: Measure Height ④/⑤/⑥
Measure the height in 3 places. For height, use the shortest measurement to the nearest 1/8".
Order Height = The shortest of the three measurements
Please measure your window height as accurately as possible.
Due to their structural design, Zebra Shades, Roman Shades, Woven Wood Shades, and Shangri-La Sheer Shades typically cannot have their upper and lower limits adjusted. If the measurements are inaccurate, the shade may not fully cover the window, or adjusting the limits could affect the shade’s structure.
Step 3: Measure Depth ⑦
Different types of valances require different mounting depths. Click here to view the recommended mounting depths for each shade type .
Friendly reminder: If the actual mounting depth is less than the recommended value, the valance may extend beyond the window frame.
Outside Mount
Step 1: Measure Width ①
Measure width to be covered. We recommend 1½" (3.8 cm) - 3" (7.6 cm) overlap on each side of the window (3"-6" (7.6-15.2 cm) total) for optimum light control and privacy.
Order Width = The area you wish to cover (Window width + 3"~6" (7.6-15.2 cm))
Step 2: Measure Height ②
Determine the location for the valance installation, and measure the height to be covered starting from the top of the valance installation point. (Please note: the height of your shade order includes the valance, fabric, and hem.)
We recommend adding at least 6 inches (15.2 cm) to the height of the window frame to allow space for the valance installation and to achieve optimal light control and privacy.
Order Height = The area you wish to cover (Window height + at least 6" (15.2 cm))
Note: Outside mount shades will have no deductions taken at the factory. They will be made according to your exact measurements.
Align Multi Shades
For shades that are highly uniform or need to be installed on the same wall, it is recommended to purchase them in a single order. Please make corresponding notes so that our factory can produce them from the same batch, ensuring the slats (Zebra Shades), folds (Roman Shades), or vanes (Shangri-La Sheer Shades) align properly.
Outdoor Shades
Before you begin measuring, note any protruding obstacles such as railings, handrails, or exterior wall trims.
For more information on installation clearances and final dimensions, please click below to view the detailed size specifications.
Choose a Mount Type: Inside Ceiling Mount or Outside Wall Mount
Inside Ceiling Mount
Step 1: Measure Width ①/②/③
Measure the width in 3 places. For width, use the shortest measurement to the nearest 1/8".
Order Width = The shortest of the three measurements
Note: Do not take any deductions for clearance. The manufacturer will take a 3/16"(4.8mm) deduction off the overall width for a perfect fit.
Step 2: Measure Height ④/⑤/⑥
Measure the height in 3 places. For height, use the longest measurement to the nearest 1/8".
Order Height = The longest of the three measurements
Step 3: Measure Depth ⑦
For ceiling mount installation, a recommended depth of 3 1/4" (8.3 cm) or more is required.
If the available depth is less, the valance may extend beyond the mounting surface.
Outside Wall Mount
Step 1: Measure Width ①
Measure width to be covered. We recommend 1½" (3.8 cm) - 3" (7.6 cm) overlap on each side of the window (3"-6" (7.6-15.2 cm) total) for optimum light control and privacy.
Order Width = The area you wish to cover (Window width + 3"~6" (7.6-15.2 cm))
Step 2: Measure Height ②
Determine the location for the valance installation, and measure the height to be covered starting from the top of the valance installation point. (Please note: the height of your shade order includes the valance, fabric, and hem.)
We recommend adding at least 6 inches (15.2 cm) to the height of the window frame to allow space for the valance installation and to achieve optimal light control and privacy.
Order Height = The area you wish to cover (Window height + at least 6" (15.2 cm))
Note: Outside mount shades will have no deductions taken at the factory. They will be made according to your exact measurements.
Drapery
Choose a Mount Type: Ceiling Mount or Side Mount
Ceiling Mount
1. Measure Depth
Measure the depth of the location where the drapes will be installed.
For ceiling-mounted drapery tracks, please ensure there is enough flat ceiling space to accommodate the system.
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A minimum of 5" (12.7 cm) is required for single-layer drapery.
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For double-layer setups (such as sheers and blackout drapery), at least 9" (22.9 cm) of flat space is recommended.
2. Measure Order Width
Measure the exact width you want the drapes to cover.
For example, if your window is 100" (254.0 cm) wide, your order width should be at least 135" (342.9 cm).
3. Measure Order Height
Measure and determine the desired height for the drapes. Recommend ½″ (1.3 cm) gap from fabric to floor.
The order height is the total height from the top of the track to the bottom of the drapery fabric.
For ceiling-mounted drapes, no deductions will be made during production. The product will be manufactured according to the exact measurements you provide.
Side Mount
1. Measure Order Width
Measure the exact width you want the drapes to cover.
For example, if your window is 100" (254.0 cm) wide, your order width should be at least 135" (342.9 cm).
2. Measure Order Height
Measure and determine the desired height for the drapes. Recommend ½″ (1.3 cm) gap from fabric to floor.
The order height is the total height from the top of the track to the bottom of the drapery fabric.
For side-mounted drapes, no deductions will be made during production. The product will be manufactured according to the exact measurements you provide.
How to Measure Corner Windows
Inside Mount
Step 1: Measure the widths of window 1 and window 2 at the top, respectively.
Step 2: Measure the height of each window at three different locations and use the longest measurement obtained.
Order Width
Shades 1 Order Width = Width A
Shades 2 Order Width = Width B - W (Deduction Required)
* Different shades models have varying widths. Refer to the table below to determine the width deduction (W value) required based on the shades model you have chosen.
Order Height
Roller Shades, Cellular Shades, Dual Shades:
Shades 1 Order Height = The longest of the three measurements
Shades 2 Order Height = The longest of the three measurements
Zebra Shades, Roman Shades, Woven Wood Shades, Shangri-La Sheer Shades:
Shades 1 Order Height = The shortest of the three measurements
Shades 2 Order Height = The shortest of the three measurements
(Window depth ≥ 2.5" (6.4 cm))
Outside Mount
Step 1: Measure the widths of window 1 and window 2 at the top, respectively.
Step 2: Measure height to be covered. (Including the top of valance to the shades fabric to the bottom rod)
To prevent the valance from obstructing your window, we recommend adding at least 6" (15.2 cm) to the frame's height for optimal light control and privacy.
Order Width
Shades 1 Order Width = The area you wish to cover (Width A + 3~6" (7.6~15.2 cm))
Shades 2 Order Width = The area you wish to cover (Width B + 3~6" (7.6~15.2 cm) - W Deduction Required)
* Different shades models have varying widths. Refer to the table below to determine the width deduction (W value) required based on the shades model you have chosen.
Order Height
Order Height A/B = The area you wish to cover (Window height + at least 6" (15.2 cm))
W (Deduction Required) Reference Table
- Ensure you reference the W deduction table to get the correct value for your chosen shade model before calculating the final width.
- For Inside Mount: Window depth must be at least 2.5" (6.4 cm) to ensure proper installation of the valance and hardware.
- For Outside Mount: Adding 3~6" (7.6~15.2 cm) to the width and 6" (15.2 cm) to the height ensures full coverage, minimal light leakage, and optimal privacy.
How to Measure Angled Bay Windows
If your bay window has walls, frames, or trim separating each section, you can treat them as individual windows and measure each one separately.
If the windows are connected with no separation between them, you should not measure them like standard windows. Otherwise, the valances may collide at the corners during installation.
Please follow the steps below to measure your bay window correctly.
Before you begin measuring your shades, first identify the valance depth of your selected product (A1). You can find this information in the reference table below.
Valance Depth Reference Table
Next, check for any obstructions that extend beyond the window frame—such as window handles or air vents. Measure how far these obstructions protrude past the frame (A2).
Then, calculate your final A Measurement:
A = A1 (Valance Depth) + A2 (Obstruction Projection)
Example:
If the valance depth is 3" (7.6 cm) and a window handle extends ½" (1.3 cm) beyond the frame, the combined measurement will be 3½" (8.9 cm). This will be your A Measurement.
Two pieces of A4 or A5 card
Pencil
Metal tape measure
Ruler
Step 1
Place two straight-edged pieces of card side by side and mark A Measurement on the edge of each piece (valance depth + any obstructions).
Step 2
Position the two marked cards on your bay windowsill and slide them toward each other until the A marks on both pieces line up perfectly.
Step 3
Where the edge of each card meets the window frame, make a light pencil mark on the sill.
Repeat this process for every corner of your angled bay.
Step 4
Once all marks are in place, measure the distance from one mark to the next.
This measurement will determine the exact width of each shade you need to order.
Please select Inside Mount when placing your order.
During production, the factory will apply an additional 3/16 inch (about 4.8 mm) to ensure a safe and proper installation.
Step 5
To measure the shade’s height, measure from the top of the valance installation point straight down to your preferred stopping point—typically the windowsill.
How to Measure Multiple Shades in One Window
Inside Mount
Order Width
Shade 1 Order Width = Width A
Shade 2 Order Width = Width B
Shade 3 Order Width = Width C
Order Height
Roller Shades, Cellular Shades, Dual Shades:
Order Height = The longest dimension among the three height measurements A, B, and C.
Zebra Shades, Roman Shades, Woven Wood Shades, Shangri-La Sheer Shades:
Order Height = The shortest dimension among the three height measurements A, B, and C.
(Window depth ≥ 2.5" (6.4 cm))
Outside Mount
Order Width
Shade 1 Order Width = The area you wish to cover (Width A + 3~6" (7.6~15.2 cm))
Shade 2 Order Width = Width B
Shade 3 Order Width = The area you wish to cover (Width C + 3~6" (7.6~15.2 cm))
Order Height
Order Height A/B/C = The area you wish to cover (Window height + at least 6" (15.2 cm))
- For Inside Mount: Ensure the window depth is at least 2.5" (6.4 cm) to accommodate the valance and installation hardware.
- For Outside Mount: Adding 3~6" (7.6~15.2 cm) to the width (for Shade 1 and Shade 3) ensures full coverage and prevents light leakage. Extending the height by at least 6" (15.2 cm) creates a more polished look and better light control.
- Always measure twice to confirm accuracy before placing your order.