Guides - Measuring VELUX Window Blinds

    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
    U04765730
    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