To aid with installation and create a seamless wood interior, Marvin offers
factory-applied jamb extensions. Jamb extensions increase the depth of the
window to accommodate the thickness of the wall.
- 4 9/16" (116 mm) jambs are standard except where noted.
- Jamb extensions for doors are available up to 9 9/16" (243 mm),
and for windows up to 14" (355.6 mm). Larger custom jamb extensions
are also available through Marvin. Contact your
local Marvin retailer for