VELUX Window Blinds Measuring Guide

Determine VELUX window codes including Size Chart

To find out what size your VELUX window is, open your VELUX window and you will see a metal plate as shown below:

In the box on the left side, as highlighted you will find your window code. You can enter this window code into our site to find the prices for blinds to fit your size window and order using that size.

If you cannot find your window code or see a data plate, and are still sure it's a genuine VELUX window then you can refer to the chart below, which gives you the internal visible glass sizes.

VELUX Windows made since February 2014

Size CodeGlass Width (mm)Glass Height (mm)
BK04293.2783.9
CK01371.2503.9
CK02371.2583.9
CK04371.2783.9
CK06371.2983.9
FK04481.2783.9
FK06481.2983.9
FK08481.21203.9
MK27601.2429.9
MK04601.2783.9
MK06601.2983.9
MK08601.21203.9
MK10601.21405.9
MK12601.21605.9
PK25763.2355.9
PK04763.2783.9
PK06763.2983.9
PK08763.21203.9
PK10763.21405.9
SK01961.2503.9
SK06961.2983.9
SK08961.21203.9
SK10961.21405.9
UK041161.2783.9
UK081161.21203.9
UK101161.21405.9
MK31603.1377.4
MK35603.1731.4
MK36603.1931.4
MK38603.11151.4
PK31764.9377.4
PK35764.9731.4
PK36764.9931.4
PK38764.91151.4
SK31962.9377.4
SK35962.9731.4
SK36962.9931.4
SK38962.91151.4
UK311162.9377.4
UK351162.9731.4
UK361162.9931.4
UK381162.91151.4
MK34603730
PK34765730
SK34765730
UK34765730

VELUX Windows made between 2001 - 2013

Size CodeGlass Width (mm)Glass Height (mm)
B04295730
C01373450
C02373530
C04373730
C06373930
F04483730
F06483930
F084831150
M04603730
M06603930
M086031150
M106031352
M126031552
M27603376
P04765730
P06765930
P087651150
P107651352
P25765302
S01963450
S06963930
S089631150
S109631352
U041163730
U0811631150
U1011631352
M31603376
M34603731
M36603931
M386031151
P31765376
P34765731
P36765931
P387651151
S31963376
S34963731
S36963931
S389631151
U311163376
U341163731

VELUX Windows made between 1992 - 2001

Size CodeGlass Width (mm)Glass Height (mm)
304603730
306603930
3086031150
3106031352
3126031552
404765730
406765930
4087651150
4107651352
425765302
601963450
606963930
6089631150
6109631352
804765730
80811631150
81011631352
102386563
104386763
206496963
101386483
331603376
334603731
336603931
3386031151
431765376
434765731
436765931
4387651151
631963376
634963731
636963931
6389631151
8311163376
8341163731

VELUX Windows made before 1992

Size CodeGlass Width (mm)Glass Height (mm)
9373450
6373730
1603730
14603930
26031150
136031352
116031552
31765730
37651352
4963930
109631150
7765730
811631150
5524930
9373450
N25361078
1/2-60603376
3-60765376
4/10-60963376
7/8-601163376
1/2-80603576
3-80765576
4/10-80963576
7/8-801163576