Tech Tip: Measuring for Multiple Blinds in One Window

Tech Tip: Measuring for Multiple Blinds in One Window

How to Measure for Multiple Blinds in One Window

Large windows don't always require one oversized blind. In many cases, installing two or three individual blinds inside the same window opening creates a cleaner appearance, makes operation easier, and allows you to replace a single blind if needed in the future.


This measuring guide explains how to accurately measure for multiple blinds in one window, including mini blinds, faux wood blinds, wood blinds, and cellular shades.


Three aluminum mini blinds installed side by side in a wide window using separate headrails


Why Install Multiple Blinds in One Window?

  • Easier operation on extra-wide windows
  • Less strain on lift mechanisms over time
  • Simpler replacement if one blind is ever damaged
  • More flexible light and privacy control
  • A clean, balanced appearance across large windows


Whether you're installing faux wood blinds, wood blinds, mini blinds, or cellular shades, following the correct measuring process helps ensure a proper fit and smooth operation.


How to Measure for Installing Multiple Blinds in One Window

Note: Factory deductions outlined below apply to inside-mounted window treatments only. For outside-mounted blinds, measure the total width and simply divide it by the number of blinds you plan to install. No additional deductions are needed.


  1. Measure the window.
    Follow our measuring guide. Measure the width in three locations and use the smallest measurement. Be sure to confirm that your window has enough depth for your chosen product.

  2. For two blinds in one window:
    Divide the finished width by two, then add 1/4" to each blind. The factory will deduct 1/2" from each blind during manufacturing.

    Example:
    Window width = 80"
    80" ÷ 2 = 40"
    40" + 1/4" = 40 1/4" ordered width for each blind

  3. For three blinds in one window:
    Divide the finished width by three. Add 1/4" to the left and right blinds only. Do not add width to the center blind.

    Example:
    Window width = 90"
    90" ÷ 3 = 30"
    Left blind = 30 1/4"
    Center blind = 30"
    Right blind = 30 1/4"


For cellular shades, follow the same process, but add 1/8" to each outside shade instead. The factory deducts approximately 1/4" from each shade during production.


Compare Colors Before You Order

Not sure which material or finish is right for your space? Order up to 15 free samples to compare colors, textures, and materials before placing your order.


Need Help Measuring?

Need a little guidance? Call or chat with one of our Design Consultants at (888) 257-1840. We're real people, and we're happy to help!


If you're ordering multiple blinds for one window, our team can also help you determine the correct sizing and order a shared valance when available for a more seamless finished appearance.