A complete VELUX size chart for replacing your roof windows!

Posted by Lawrie Fraser on 4th January 2023

When replacing a VELUX roof window. Things can get confusing. With 3 different generations still in circulation in 2023. Here is a full VELUX size chart for replacing old to new. 

  • Window size 55 (W) x 78 (H) code 102 or C02 or CK02
  • Window size 55 (W) x 98 (H) code 104 or 6 or C04 or CK04
  • Window size 78 (W) x 98 (H) code 304 or 1 or M04 or MK04
  • Window size 66 (W) x 118 (H) code 206 or 5 or F06 or FK06
  • Window size 78 (W) x 118 (H) code 306 or 14 or M06 or MK06
  • Window size 78 (W) x 140 (H) code 308 or 2 or M08 or MK08
  • Window size 134 (W) x 98 (H) code 804 or 7 or U04 or UK04
  • Window size 114 (W) x 118 (H) code 606 or 4 or S06 or SK06
  • Window size 94 (W) x 160 (H) code 410 or 3 or P10 or PK10
  • Window size 134 (W) x 140 (H) code 808 or 8 or U08 or UK08