Essential Guide: Measuring Windows Before You Buy

Here’s a simple step-by-step guide to measure your window size, depending on whether you’re doing an inside mount or outside mount:

For Inside Mount (Blinds/Shades fit inside the window frame):

• Measure the inside width of the window frame at 3 locations:
  • Top
  • Middle
  • Bottom
• Use the narrowest measurement.

2. Height Measurement

• Measure the inside height of the window frame at 3 locations:
  • Left
  • Middle
  • Right
• Use the shortest measurement.

3. Depth Check

• Measure the depth of your window frame to ensure the shade or blind can be mounted inside. A minimum depth of 75 mm (3 inches) is recommended for a proper fit and clean look.

For Outside Mount (Blinds/Shades cover the entire window frame):

1. Width Measurement

• Measure the width of the area you want to cover at 3 locations:
  • Top
  • Middle
  • Bottom
• Add at least 50-75 mm (2–3 inches) on each side of the the widest measurement for better light control and coverage.

2. Height Measurement

• Measure from where you want to mount (above the window frame) to where you want the blinds to end at 3 locations:
  • Left
  • Middle
  • Right
• Add 50-75 mm (2–3 inches) on the the longest measurement above the window for mounting space.

📏 Tips:

• For better blackout, choose outside-mounted shades.
• Use a steel tape measure for accuracy.
• Always measure each window separately—even if they look the same.