Guide2 min read2024-10-30

How to Measure Windows for Curtains — An Illustrated Guide

Accurate measurements make sure your curtains look perfect. Follow this simple guide.

Tools You'll Need

Measuring tape
Paper and pen
A ladder (for tall windows)

Technician fitting blind brackets on a bedroom window

Step 1: Measure the Width

Measure the width of the window from one edge of the frame to the other. Add 15-20cm on each side so the curtains cover the window completely when closed.

Formula: Window Width + 30-40cm = Curtain Width

Step 2: Measure the Height

Measure from where you want to install the rod/track down to the bottom:

Sill length: Add 15cm below the window sill
Floor length: Subtract 2cm from the floor so the curtains don't drag
Puddle effect: Add an extra 5-10cm on the floor for a luxurious effect

Step 3: Consider the Style

Eyelet & pleat: Need 2x the window width for fullness
Roller & venetian blinds: Exact measurements to fit the window frame

Important Tips

Measure each window separately — don't assume they're all the same size
Take measurements at 3 points (top, middle, bottom) and use the smallest
If in doubt, ask the LangsirKita team to come and measure for free!