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Rough Opening Dimensions

Move your mouse pointer along the grid below. (The origin point is the upper left corner.) Click any square in the grid for a single-page summary of the rough opening required for various IBP products.

Requires block:
Flush mount window
Note: All IBP products require 8" Trimline or Thinline series glass block: actual dimension 7 3/4" X 7 3/4" X 3 1/8".

Window: Nail/screw flange on all 4 sides, similar to standard windows.
Window Flushmount: Flush mount on all 4 sides, so that unit can be installed flush or recessed in opening. Attaches to structure through perimeter portion prior to installing glass blocks.
Skylight: Similar to standard curb mount skylights.

ARCAT Specs  

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