APPENDIX – Framing a Rough Opening Parallel To Ceiling Joist
Make a rough opening to the size as required in table 1 ensuring that the dimensions of
the diagonals of the frame are the same as illustrated in Figure 17.
MODEL
AA2510R5
AA2210R5
WA2210L
A. For Rough opening without joist removal (Figure 17)
• Locate headers in front and rear of the
opening as shown in Figure 17.
• Check for squareness by making sure
that diagonal measurements are
within 1/8".
• Secure using (3) 16d nails into each end
of the Header.
B. Rough opening with joist removal (Figure 18)
• Install temporary support boards
spanning both sides of joists to be
removed.
• Remove joist at length to allow for
double headers to be installed on both
ends of opening.
Continued on next page...
10
ROUGH
CEILING HT.
RANGE "A"
OPENING
25 1/2" x 54"
7' 8" – 10' 3"
22 1/2" x 54"
7' 8" – 10' 3"
22 1/2" x 54"
7' 9" – 10' 3"
* FOR 10´3" CEILING HEIGHT
TABLE 1 (repeated from page 3)
LANDING
SPACE "B"
* 66"
* 66"
* 65"
Diagonal
FIGURE 17
FIGURE 18
SWING
CLEARANCE "C"
74"
74"
74"