FRAMING
Page 2
POST CONSTRUCTION
Figure 3
4” x 4”
Post
Wall Opening:
56 1/2” Min.
58” Max.
Sq. I.D.
FRAME CONSTRUCTION
Recommended Spacing is at least 16”; Minimum Spacing is 12”
Figure 2
Spacing
Frame:
Up to 58” Max.
Sq. I.D.
(Must be equal
to or larger than
Wall Opening)
Wall Opening:
56 1/2” Min.
58” Max.
Sq. I.D.
For optimum performance, both the Wall Opening and the Frame square Inside Dimension (ID) should be 58”.
However, the Wall Opening ID may be between 56 1/2” and 58” square. The Frame ID may also be between 56 1/2”
and 58” square, but must be equal to or larger than the wall opening. See Figures 2 (for 2x4 frame construction) or
3 (for 4x4 post construction) below.
Frame:
Up to 58” Max.
Sq. I.D.
(Must be equal
to or larger than
Wall Opening)
