12 Jan


A jamb extension does
precisely what the name suggests – it's a board that fills the depth of the
wall space from the inside face of the door frame to the face of the wall and
thus widens the frame. So if the wall thickness is greater than the standard
jamb width, extensions must be used.
Gezit jamb extensions
are typically made of MDF and create a clean edge for the casing trim to be
nailed to or inserted if this is a telescopic L-casing.
With the help of extensions Gezit frames can cover walls 4 7/8” to 6 7/8” thick.
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