Therma-Tru Smooth-Star - Manual (Page 21)

JAMB EXTENSION INFORMATION
The following images are intended to help clarify how a patio door is
installed in different frame openings.
The jamb extensions are made of standard wood trim materials, readily
available from lumber yards and building material retail stores.
Attach the jamb extensions through the side into the wall.
4 9/16"
2 x 4 CONSTRUCTION
1 1/8”
Exterior
2 x 6 CONSTRUCTION
6 9/16"
2”
3/4"
1 1/8"
Exterior
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