Zipper track measurement blind 

First, confirm the installation position of the blind, inside or outside mount

一、Inside mount

1、Measure the inner width of the window frame, measure the upper, middle and lower parts of the window frame separately, and take the minimum of the three measured widths.

2、Measure the height inside the window frame, measure the left, middle, and right sides of the window frame separately, and take the minimum of the three height measurements.

3、Calculate the size of the finished zipper blind sizes:

Blind width = minimum measured width -3mm; Blind height = minimum measured height -3mm.

二、Outside mount

1、Measure the inner width of the window frame, measure the upper, middle and lower parts of the window frame separately, and take the maximum of the three measured widths.

2、Measure the height inside the window frame, measure the left, middle, and right sides of the window frame separately, and take the maximum of the three height measurements.

3、Calculate the size of the finished zipper blind sizes:

Blind width=maximum measured width+15cm;

Blind height=maximum measured height+20cm.