Blind Quick Measure Guide

First, follow the orange lines to measure the window width and height.

Next, as a rule of thumb, add a 0.10m-0.15m (10-15cm) allowance to each side of the measurement.

This will allow the blind to overlap the window and reduce light leakage from the sides.

For Illustration:
Blind Width = Window Width + 0.10m + 0.10m

Blind Height (with beam) = Window Height + 0.10m

Blind Height (w/o beam) = Window Height + 0.10m + 0.10m

In the above example, there is a beam right above the window. As the blind’s headrail will be mounted on the beam directly, there is no need to add 10cm to the top.

If there is no beam, the blinds will be mounted 10cm upwards from the top of the window frame.

Notes:
1 . The 10-15 cm (4-6 inches) allowance is a general guide, it can be more or less depending on individual’s preference. The more overlap you have, the lesser will be the ambient light leakage.

2. All blinds measurements are inclusive of the headrail & bottom bar. For roller/combi blinds, please note that the fabric width will be approximately 1.25~1.5 inches (3.2~3.8 cm) narrower than the headrail.

See below example image for Point 2: