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Velux Skylight Sizes

Velux Skylight Sizes

Velux Skylights - Authorized Dealer

Velux Skylight Sizes

Fixed Skylight (FS) – Deck Mounted

FS Size Code A06 C01 C04 C06 C08 C12 D26 D06 M02 M04 M06 M08 S01 S06
Outside frame (W"xH") 151⁄4 x
461⁄4		 211⁄2 x
273⁄8		 211⁄2 x
383⁄8		 211⁄2 x
461⁄4		 211⁄2 x
5415⁄16		 211⁄2 x
703⁄4		 231⁄4 x
237⁄16		 231⁄4 x
461⁄4		 309⁄16 x
301⁄2		 309⁄16 x
383⁄8		 309⁄16 x
461⁄4		 309⁄16 x
5415⁄16		 443⁄4 x
273⁄8		 443⁄4 x
461⁄4
Rough opening/ Finished frame (W"xH") 141⁄2 x
453⁄4		 21 x
267⁄8		 21 x
377⁄8		 21 x
453⁄4		 21 x
547⁄16		 21 x
701⁄4		 221⁄2 x
2215⁄16		 221⁄2 x
453⁄4		 301⁄16 x
30		 301⁄16 x
377⁄8		 301⁄16 x
453⁄4		 301⁄16 x
547⁄16		 441⁄4 x
267⁄8		 441⁄4 x
453⁄4

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Fixed Skylight (FCM) – Curb Mounted

Other Sizes Available

FCM Size Code (W"xH") 1430 1446 2222 2230 2234 2246 2270 3030 3046 3434 3446 4622 4630 4646
Inside curb (W"xH") 141⁄2x 301⁄2 141⁄2 x 461⁄2 221⁄2x 221⁄2 221⁄2x 301⁄2 221⁄2 x 341⁄2 221⁄2 x 461⁄2 221⁄2 x 701⁄2 301⁄2 x 301⁄2 301⁄2 x 461⁄2 341⁄2 x 341⁄2 341⁄2 x 461⁄2 461⁄2 x 221⁄2 461⁄2 x 301⁄2 461⁄2 x 461⁄2
Outside curb (W"xH") 171⁄2 x 331/2 171⁄2 x 491⁄2 251⁄2 x 251⁄2 251⁄2 x 331⁄2 251⁄2 x 371⁄2 251⁄2 x 491⁄2 251⁄2 x 731⁄2 331⁄2 x 331⁄2 331⁄2 x 491⁄2 371⁄2 x 371⁄2 371⁄2 x 491⁄2 491⁄2 x 251⁄2 491⁄2 x 331⁄2 491⁄2 x 491⁄2
Maximum skylight clearance (W"xH") 185⁄8 x 345⁄8 185⁄8 x 505⁄8 265⁄8 x 265⁄8 265⁄8 x 345⁄8 265⁄8 x 385⁄8 265⁄8 x 505⁄8 265⁄8 x 745⁄8 345⁄8 x 345⁄8 345⁄8 x 505⁄8 385⁄8 x 385⁄8 385⁄8 x 505⁄8 505⁄8 x 265⁄8 505⁄8 x345⁄8 505⁄8 x 505⁄8

New Stocked Custom Sizes

FCM Size Code (W”xH”) 190365 190435 210455 225225 225470 245245 245470 245490 260540 280525
Flashed Outside Curb Width Range 22 – 23 1⁄2 22 – 23 1⁄2 24 – 25 1⁄2 25 1⁄2 – 27 25 1⁄2 – 27 27 1⁄2 – 29 27 1⁄2 – 29 27 1⁄2 – 29 29 – 30 1⁄2 31 – 32 1⁄2
Flashed Outside Curb Height Range 39 1⁄2 – 41 46 1⁄2 – 48 48 1⁄2 – 50 25 1⁄2 – 27 50 – 51 1⁄2 27 1⁄2 – 29 50 – 51 1⁄2 52 – 53 1⁄2 57 – 58 1⁄2 55 1⁄2 – 57
Maximum skylight clearance (W”xH”) 23 5⁄8 x
41 1⁄8		 23 5⁄8 x
48 1⁄8		 25 5⁄8 x
50 1⁄8		 27 1⁄8 x
27 1⁄8		 27 1⁄8 x
51 5⁄8		 29 1⁄8 x
29 1⁄8		 29 1⁄8 x
51 5⁄8		 29 1⁄8 x
53 5⁄8		 30 5⁄8 x
58 5⁄8		 32 5⁄8 x
57 1⁄8

New Stocked Custom Sizes

FCM Size Code (W”xH”) 315315 315470 315700 315715 365365 385385 385540 420435 460470 460700
Flashed Outside Curb Width Range 34 1⁄2 – 36 34 1⁄2 – 36 34 1⁄2 – 36 34 1⁄2 – 36 39 1⁄2 – 41 41 1⁄2 – 43 41 1⁄2 – 43 45 – 46 1⁄2 49 – 50 1⁄2 49 – 50 1⁄2
Flashed Outside Curb Height Range 34 1⁄2 – 36 50 – 51 1⁄2 73 – 74 1⁄2 74 1⁄2 – 76  39 1⁄2 – 41 41 1⁄2 – 43 57 – 58 1⁄2 46 1⁄2 – 48 50 – 51 1⁄2 73 – 74 1⁄2
Maximum skylight clearance (W”xH”) 36 1⁄8 x
36 1⁄8		 36 1⁄8 x
51 1⁄8		 36 1⁄8 x
74 5⁄8		 36 1⁄8 x
76 1⁄8		 41 1⁄8 x
41 1⁄8		 43 1⁄8 x
43 1⁄8		 43 1⁄8 x
58 5⁄8		 46 5⁄8 x
48 1⁄8		 350 5⁄8 x
51 5⁄8		 50 5⁄8 x
74 5⁄8

Learn more about the Velux fcm fixed skylight

Manual “Fresh Air” Skylight (VS) – Deck Mounted

VS Size Code C01 C04 C06 C08 M02 M04 M06 M08 S01 S06
Outside frame (W”xH”) 211⁄2 x
273⁄8		 211⁄2 x
383⁄8		 211⁄2 x
461⁄4		 211⁄2 x
541⁄16		 309⁄16 x
301⁄2		 309⁄16 x
383⁄8		 309⁄16 x
461⁄4		 309⁄16 x
541⁄16		 443⁄4 x
273⁄8		 443⁄4 x
461⁄4
Rough opening/ Finished frame (W”xH”) 21 x
267⁄8		 21 x
377⁄8		 21 x
453⁄4		 21 x
547⁄16		 301⁄16 x
30		 301⁄16 x
377⁄8		 301⁄16 x
453⁄4		 301⁄16 x
547⁄16		 441⁄4 x
267⁄8		 441⁄4 x
453⁄4

Manual “Fresh Air” Skylight (VCM) – Curb Mounted

VCM Size Code 2222 2234 2246 3030 3046 3434 4646
Outside frame (W”xH”) 211⁄2 x
273⁄8		 211⁄2 x
383⁄8		 211⁄2 x
461⁄4		 211⁄2 x
541⁄16		 309⁄16 x
301⁄2		 309⁄16 x
383⁄8		 309⁄16 x
461⁄4
Rough opening/ Finished frame (W”xH”) 21 x
267⁄8		 21 x
377⁄8		 21 x
453⁄4		 21 x
547⁄16		 301⁄16 x
30		 301⁄16 x
377⁄8		 301⁄16 x
453⁄4

Solar Powered “Fresh Air” Skylight (VSS) – Deck Mounted

VSS Size Code C01 C04 C06 C08 M02 M04 M06 M08 S01 S06
Outside frame (W”xH”) 211⁄2 x
273⁄8		 211⁄2 x
383⁄8		 211⁄2 x
461⁄4		 211⁄2 x
541⁄16		 309⁄16 x
301⁄2		 309⁄16 x
383⁄8		 309⁄16 x
461⁄4		 309⁄16 x
541⁄16		 443⁄4 x
273⁄8		 443⁄4 x
461⁄4
Rough opening/ Finished frame (W”xH”) 21 x
267⁄8		 21 x
377⁄8		 21 x
453⁄4		 21 x
547⁄16		 301⁄16 x
30		 301⁄16 x
377⁄8		 301⁄16 x
453⁄4		 301⁄16 x
547⁄16		 441⁄4 x
267⁄8		 441⁄4 x
453⁄4

Solar Powered “Fresh Air” Skylight (VCS) – Curb Mounted

VCS Size Code 2222 2234 2246 3030 3046 3434 3737 4622 4630 4646
Inside curb (W”xH”) 221⁄2 x
221⁄2		 221⁄2 x
341⁄2		 221⁄2 x
461⁄2		 301⁄2 x
301⁄2		 301⁄2 x
461⁄2		 341⁄2 x
341⁄2		 371⁄2 x
371⁄2		 461⁄2 x
221⁄2		 461⁄2 x
301⁄2		 461⁄2 x
461⁄2
Outside curb (W”xH”) 251⁄2 x
251⁄2		 251⁄2 x
371⁄2		 251⁄2 x
491⁄2		 331⁄2 x
331⁄2		 331⁄2 x
491⁄2		 371⁄2 x
371⁄2		 401⁄2 x
401⁄2		 491⁄2 x
251⁄2		 461⁄2 x
331⁄2		 461⁄2 x
461⁄2
Maximum skylight clearance (W”xH”) 265⁄8 x
265⁄8		 265⁄8 x
385⁄8		 265⁄8 x
505⁄8		 345⁄8 x
345⁄8		 345⁄8 x
505⁄8		 385⁄8 x
385⁄8		 415⁄8 x
415⁄8		 505⁄8 x
265⁄8		 461⁄2 x
341⁄2		 505⁄8 x
505⁄8 x

Electric “Fresh Air” Skylight (VSE) – Deck Mounted

VSE Size Code C01 C04 C06 C08 M04 M06 M08 S01 S06
Outside frame (W”xH”) 211⁄2 x
273⁄8		 211⁄2 x
383⁄8		 211⁄2 x
461⁄4		 211⁄2 x
541⁄16		 309⁄16 x
383⁄8		 309⁄16 x
461⁄4		 309⁄16 x
541⁄16		 443⁄4 x
273⁄8		 443⁄4 x
461⁄4
Rough opening/ Finished frame (W”xH”) 21 x
267⁄8		 21 x
377⁄8		 21 x
453⁄4		 21 x
547⁄16		 301⁄16 x
377⁄8		 301⁄16 x
453⁄4		 301⁄16 x
547⁄16		 441⁄4 x
267⁄8		 441⁄4 x
453⁄4

Electric “Fresh Air” Skylight (VCE) – Curb Mounted

VCE Size Code 2222 2234 2246 3030 3046 3434 4646
Inside curb (W”xH”) 221⁄2 x
221⁄2		 221⁄2 x
341⁄2		 221⁄2 x
461⁄2		 301⁄2 x
301⁄2		 301⁄2 x
461⁄2		 341⁄2 x
341⁄2		 461⁄2 x
461⁄2
Outside curb (W”xH”) 251⁄2 x
251⁄2		 251⁄2 x
371⁄2		 251⁄2 x
491⁄2		 331⁄2 x
331⁄2		 331⁄2 x
491⁄2		 371⁄2 x
371⁄2		 461⁄2 x
461⁄2
Maximum skylight clearance (W”xH”) 265⁄8 x
265⁄8		 265⁄8 x
385⁄8		 265⁄8 x
505⁄8		 345⁄8 x
345⁄8		 345⁄8 x
505⁄8		 385⁄8 x
385⁄8		 505⁄8 x
505⁄8 x

Top hinged Roof Window Skylight (GPU) – Deck Mounted

Roof Window Sizes

GPU Size Code  CK04  CK06  MK04  MK06  MK08  PK10  SK06  UK08
Outside frame (W”xH”) 215⁄8 x 381⁄2 215⁄8 x 463⁄8 303⁄4 x 381⁄2 303⁄4 x 463⁄8 303⁄4 x 55 371⁄8 x 63 447⁄8 x 463⁄8 523⁄4 x 551⁄16
Rough opening/ Finished frame (W”xH”) 221⁄8 x 39 221⁄8 x 467⁄8 311⁄4 x 39 311⁄4 x 467⁄8 311⁄4 x 551⁄2 375⁄8 x 631⁄2 453⁄8 x 467⁄8 531⁄4 x 551⁄2
Velux Skylight Sizes

Center-Pivit Roof Window Skylight (GGU) – Deck Mounted

Roof Window Sizes

GGU Size Code  CK02  CK04  CK06  FK04  FK06  FK08  MK04  MK06  MK08
Outside frame (W”xH”) 215⁄8 x 305⁄8 215⁄8 x 381⁄2 215⁄8 x 463⁄8 26 x 381⁄2 26 x 463⁄8 26 x 55 303⁄4 x 381⁄2 303⁄4 x 463⁄8 303⁄4 x 55
Rough opening/ Finished frame (W”xH”) 221⁄8 x 311⁄8 221⁄8 x 39 221⁄8 x 467⁄8 261⁄2 x 39 261⁄2 x 467⁄8 261⁄2 x 551⁄2 311⁄4 x 39 311⁄4 x 467⁄8 311⁄4 x 551⁄2
GGU Size Code  MK10  PK06  PK08  PK10  SK06  SK08  UK04  UK08
Outside frame (W”xH”) 303⁄4 x 63 371⁄8 x 463⁄8 371⁄8 x 55 371⁄8 x 63 447⁄8 x 463⁄8 447⁄8 x 55 523⁄4 x 381⁄2 523⁄4 x 551⁄16
Rough opening/ Finished frame (W”xH”) 311⁄4 x 631⁄2 311⁄4 x 467⁄8 375⁄8 x 551⁄2 375⁄8 x 631⁄2 453⁄8 x 467⁄8 453⁄8 x 551⁄2 531⁄4 x 39 531⁄4 x 551⁄2
Velux Skylight Sizes

Roof Access Roof Window Skylight (GXU) – Deck Mounted

Roof Window Sizes

GXU Size Code  CK06  FK06
Outside frame (W”xH”) 215⁄8 x 463⁄8 26 x 463⁄8
Rough opening/ Finished frame (W”xH”) 221⁄8 x 467⁄8 261⁄2 x 467⁄8
Velux Skylight Sizes

VELUX CABRIO Balcony Skylight (GDL) – Deck Mounted

The CABRIO® Balcony

The CABRIO® PK19 a unique combination of roof window and private terrace, the CABRIO® Balcony opens easily to allow daylight and fresh air to flow throughout your space. The standard CABRIO® features a wider balcony space for easy access to impressive sky views.

The CABRIO® MK19 is the perfect solution for those who want the private balcony experience but have limited space. Operating like the traditional CABRIO®, the MK19 is smaller and designed to fit perfectly between most roof rafters for an easier, faster, and more budget-friendly installation.

GDL Cabrio Size Code MK19 PK19
Outside frame (W”xH”) 303⁄4 x 991⁄4 371⁄16 x 991⁄4
Rough opening/ Finished frame (W”xH”) 331⁄16 x 101 393⁄8 x 101
Velux Skylight Sizes

Sun Tunnel Sizes

Model TGR TMR  TGF TMF TLR TCR TZR/TZRL TZRQ
10″ x x x
14″ x x x x x x x
22″ x x x
Velux Skylight Sizes