Measure Guide

Guide

How to measure your windows

Accurate measurements are the key to a perfect fit. Follow these simple steps before you order.

Grab your tools

Use a steel measuring tape (not fabric), a pencil and paper. Always measure in millimetres for accuracy.

Choose your mount

Decide between an inside mount for a clean, built-in look, or an outside mount for maximum coverage.

Measure & record

Take width and drop in three places each and record the values. This is where the diagrams below come in.

Inside (Recess) Mount

  • Measure the exact width inside the recess at top, middle and bottom.
  • Record the narrowest width — the factory makes deductions.
  • Measure the drop from inside the top to the sill in three places.
  • Check the recess depth is sufficient for the blind bracket.

Outside (Face) Mount

  • Measure the window opening width, then add 40–75 mm overlap each side.
  • Measure the desired drop, adding overlap above and below for light control.
  • Ensure there is flat wall or architrave to fix the brackets to.
  • No deductions are made — order the exact size you want the blind to be.

Not confident measuring?

Our team offers a professional measure-and-quote service. Book a time and we'll take care of the technical details for you.