a. dRill ceiling RafteR attachment Points
LOcATE cEILINg RAFTERS
Mounting boards must attach to ceiling rafters.
On finished ceilings, locate rafters using stud finder.
Follow manufacturer's instructions.
Mark center of ceiling rafters. Drill
7
/
32
" (5.5 mm) holes.
b. dRill mounting boaRds
Measure center-to-center distance between rafters.
Mark distance on mounting boards. Mark drill points
in the center of the board. Drill
5
/
16
" (8 mm) holes
completely through the mounting boards.
Diagram 4.
Mark center-to-center distance between rafters on mounting boards. Attach mounting boards to rafters.
Top
View
Rafters
Rafter
Center-to-Center
Distance
Rafter
Center-to-Center
Distance
Rafter
Center-to-Center
Distance
Mounting Boards
steP 2: install mounting boaRds
c. attach mounting boaRds to ceiling
Attach mounting boards using
5
/
16
" (8 mm) lag bolts
and washers (not included).
Do not over-tighten.
