How to measure
          Measuring Method
1. To correctly measure, hold your tape from one side of your window frame and measure to the other side.
2. Please measure on the left middle and right side vertically as well as top, mid and bottom horizontally.
3. Then choose the smallest of these three sizes and adjust the product size according to the table below.
 
Standard Blinds
Roller Shades
Inside Mounting  Width = window width - 0.5 inch  Height = window height + 2 inch  Minimum frame depth = 2 inch  Outside Mounting  Width = window width + 4 inch  Height = window height + 8 inch 
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Zebra Blinds
Inside Mounting  Width = window width - 0.5 inch  Height = window height + 2 inch Minimum frame depth = 2.5 inch Outside Mounting  Width = window width + 4 inch Height = window height + 8 inch 
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Cellular Shades
Inside Mounting  Width = window width - 0.5 inch  Height = window height + 2 inch  Minimum frame depth = 2 inch  Outside Mounting  Width = window width + 4 inch Height = window height + 8 inch 
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Shangri-La Sheer Shades
Inside Mounting  Width = window width - 0.5 inch Height = window height  Minimum frame depth = 3 inch Outside Mounting  Width = window width + 4 inch  Height = window height + 6 inch 
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Roman Shades
Inside Mounting  Width = window width - 0.25 inch  Height = window height  Minimum frame depth = 1.5 inch Outside Mounting  Width = window width + 4 inch  Height = window height + 4 inch 
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Bamboo Roman Shades
Inside Mounting  Width = window width - 0.5 inch Height = window height + 2 inch Minimum frame depth = 2 inch  Outside Mounting  Width = window width + 4 inch  Height = window height + 8 inch 
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Outdoor Sun Shades
Inside Mounting  Width = window width - 0.5 inch  Height = window height + 2 inch Minimum frame depth = 2.2 inch Outside Mounting  Width = window width + 8 inch  Height = window height + 6 inch 
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Vertical Blinds
Inside Mounting  Width = window width - 0.2 inch Height = window height  Frame depth = 4.5 - 6.5 inch  Outside Mounting  Width = window width + 4 inch  Height = window height + 4 inch 
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Special Blinds
Top Down Bottom Up Shades
Inside Mounting  Width = window width - 0.25 inch  Height = window height  Minimum frame depth = 1.5 inch  Outside Mounting  Width = window width + 2-4 inch  Height = window height 
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Mini Cellular Blinds
Inside Mounting  Width = window width  Height = window height  Minimum frame depth = 0.8 inch 
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