x2
Fig. 23a
[PF 3875]
1'' X 4'' X 18-1/4''
[PF 3887]
1'' X 4'' X 46-1/4''
ONE SIDE ONly
Barrier Boards and Rock Wall Supports
1. ttach Barrier Boards as shown in (Fig. 23).
2. ssemble (2) Rock Wall Supports as shown in (Fig. 23a).
(28)
1-1/4'' screws
per support
ONE SIDE ONly
[PF 3887]
1'' X 4'' X 46-1/4''
[PF 3875]
1'' X 4'' X 18-1/4''
NOTE: There must be a 2-7/8''
Nominal Gap between all
barrier boards.
1-1/4'' screw
33
ssembly Plan
Fig. 23
(2)
1-1/4'' screws
Per joint