FCM - Fixed Curb Mounted

VELUX Fixed Curb Mounted Commercial Skylights

  • Maintenance free frame
  • Can be installed in any direction
  • White laminated glass available where diffused lighting is required
  • Factory installed blinds available

Custom-sized skylights

We require maximum skylight clearance dimension in 1/4" increments (0, 1/4, 1/2, 3/4) for width and height

Skylight sizes for FCM

FCM Size Code
1430
1446
2222
2230
2234
2246
2270
3030
3046
3434
3446
4646
Inside curb (W"xH") 141⁄2 x
301⁄2		 141⁄2 x
461⁄2		 221⁄2 x
221⁄2		 221⁄2 x
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
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
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
735⁄8		 345⁄8 x
345⁄8		 345⁄8 x
505⁄8		 385⁄8 x
385⁄8		 385⁄8 x
505⁄8		 505⁄8 x
505⁄8