Louisville AA2210 Instrucciones De Instalación página 11

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 18.
MODEL
AA2510
AA2210
WA2210
A. For Rough opening without joist removal (Figure 18)
• Locate headers in front and rear of the
opening as shown in Figure 18.
• 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 19)
• 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...
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' 11" – 10' 3"
TABLE 1 (repeated from page 3)
LANDING
SPACE "B"
67"
67"
64 1/2"
Diagonal
Measurements
Nails
FIGURE 18
FIGURE 19
SWING
CLEARANCE "C"
74"
74"
74"
Header
54"
Header
Temporary Support
Boards
10