Vertical sides of opening of doors and windows are:
AJambs
BButtress
CReveals
DPilasters
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Related Questions:
A cut in frame of a door to receive the shutter is called:
The best system of artificial ventilation is:
Window projecting outside the external wall of the room is?
Window project outside the external wall of the room
The window having a shutter fitted inclined wooden reapers which permit air and light without visibility is called