How to measure windows like a pro

In just 5 simple steps, you can measure your window like a professional.

Tools Needed:

  1. A metal measuring tape
  2. A pencil or pen
  3. The Factory Direct Shades Measuring Guide (or any paper will do)
Download Measuring Guide

Step 1: Label Windows

Label each window being measured with descriptive labels like:

  • Master Bedroom left
  • Game Room second from left
  • Living Room Left Wall Left Window

Step 2: Measure Depth

  • For each window, measure the depth of the window frame, from the wall side to the glass side.
  • Always measure to the nearest 1/8 of an inch
  • Mark down the depth of each window

Note: if your depth is smaller than 4 inches, then Outside Mount is your only option. A depth of 4 and 6/8 inches is required for flush Inside Mount.

Step 3: Width

  • Take 3 measurements for each window: top, middle, and bottom
  • Measure to the nearest 1/8 of an inch
  • Mark down all 3 measurements for each window

Inside Mount: Measure the window frame from edge to edge. The smallest measurement is your width.

Outside Mount: Measure the moulding outside the frame from edge to edge, then add at least 3 inches. The largest measurement is your width.

Step 4: Height

  • Take 3 measurements for each window: left, center, and right
  • Measure to the nearest 1/8 of an inch
  • Mark down all 3 measurements for each window

Inside Mount: Measure the window frame from top edge to bottom edge (window sill). The largest measurement is your height.

Outside Mount: Measure where you want your shade to start and where you want it to end. The largest measurement is your height.

Step 5: Check your measurements

Every professional double checks their measurements. It is important to verify your measurements by measuring again and validating for inconsistencies.