Roof Windows

Elevate any loft or living area with the addition of a VELUX roof window. Engineered to open outward with ease, these windows introduce abundant natural light, fresh air, and expansive views. Whether part of a renovation or new construction, VELUX roof windows seamlessly connect interior spaces with the outdoors, adding comfort, character, and long-term value to your home. Experience the transformation a roof window can bring.


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Top-Hinged Roof Window (GPU)

GPU Size Code CK04 CK06 MK04 MK06 MK08 PK10 SK06 UK08
Outside frame (W"xH") 21 5⁄8 x 38 1⁄2 21 5⁄8 x 46 3⁄8 30 3⁄4 x 38 1⁄2 30 3⁄4 x 46 3⁄8 30 3⁄4 x 55 37 1⁄8 x 63 44 7⁄8 x 46 3⁄8 52 3⁄4 x 55 1⁄16
Rough opening /
Finished frame (W"xH")
22 1⁄8 x 39 22 1⁄8 x 46 7⁄8 31 1⁄4 x 39 31 1⁄4 x 46 7⁄8 31 1⁄4 x 55 1⁄2 37 5⁄8 x 63 1⁄2 45 3⁄8 x 46 7⁄8 53 1⁄4 x 55 1⁄2

Center Pivot Roof Window (GGU)

GGU Size Code CK02 CK04 CK06 FK04 FK06 FK08 MK04 MK06 MK08
Outside frame (W"xH") 21 5⁄8 x 30 5⁄8 21 5⁄8 x 38 1⁄2 21 5⁄8 x 46 3⁄8 26 x 38 1⁄2 26 x 46 3⁄8 26 x 55 30 3⁄4 x 38 1⁄2 30 3⁄4 x 46 3⁄8 30 3⁄4 x 55
Rough opening /
Finished frame (W"xH")
22 1⁄8 x 31 1⁄8 22 1⁄8 x 39 22 1⁄8 x 46 7⁄8 26 1⁄2 x 39 26 1⁄2 x 46 7⁄8 26 1⁄2 x 55 1⁄2 31 1⁄4 x 39 31 1⁄4 x 46 7⁄8 31 1⁄4 x 55 1⁄2

Roof Access Window (GXU)

GXU Size Code CK06 FK06
Outside frame (W"xH") 21 5⁄8 x 46 3⁄8 26 x 46 3⁄8
Rough opening /
Finished frame (W"xH")
22 1⁄8 x 46 7⁄8 26 1⁄2 x 46 7⁄8

Roof Balcony (GDL)

GDL Size Code PK19
Outside frame (W"xH") 37 1⁄16 x 99 1⁄4
Rough opening /
Finished frame (W"xH")
39 3⁄8 x 101