Fixed Skylight

FCM - Curb Mounted

VELUX fixed skylights are perfect for visually expanding areas such as hallways, stairwells, and other closed-in, dark spaces that can be transformed with daylight and sky views. It provides an economical choice in creating a spacious home that is filled with natural light.

  • Available in deck and curb mounted applications
  • Maintenance free frame
  • No designated top, bottom or sides - can be installed in any direction
  • White laminated glass available for applications where diffused lighting is required
View FCM Technical Documents

Benefits of a Fixed Skylight

  • 1
    Clean, Quiet & Safe Glass
  • 2
    Daylight
  • 3
    No Leak Promise

Skylight sizes for FCM skylights

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
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
505⁄8


Flashing systems for FCM skylights

Description Roofing material Roof pitch Product code
Step flashing w/
adhesive underlayment		 Asphalt shingles,
wood shakes and flat tile		 10°-60° ECL 0000C
High profile flashing w/
adhesive underlayment		 Tile 14°-60° ECW 0000C


Make installation easier with Instant Light Shaft

The Instant Light Shaft is faster, cleaner, more efficient and cost-effective than traditional drywall installation. It can be installed in an hour versus 20 hours over 3 days - it's that easy!

  • Works on all "box" type 90° light shafts (no flare).
  • 16" standard depth (trim to actual on site).
  • All other pieces are pre-cut to size to be site assembled.
  • 4" minimum spacing required around all sides if multiple skylights are installed

VELUX Blinds

Our new skylight blind collection can help turn an ordinary room into something special.
Go to Blind Shop

Catalog and Brochures

VELUX skylights make it easy to transform any home into a bright and healthy environment.
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No Leak Promise

The VELUX deck and curb mounted product family is designated as "The No Leak Skylight."
Learn more

VELUX Fixed Skylight