22
(2) 1" x 4" x 21
⁷⁄₁₆
" C-O
2" x 4" x 28"
A
A
D
A
A
D
Items for STEP 18A:
(1)
2
" x 4" x 28" board
(2)
1" x 4" x 21
M\zn
" C-O boards
(12) #8 x 1
Z\x
" deck screws
Attach two pre-drilled and countersunk
1" x 4" x 21
M\zn
" C-O boards as shown.
Secure each board with #8 x 1
Z\x
" deck
screws. Do not over tighten the screws.
Center the 2" x 4" x 28" board behind
and flush with the top board as shown.
Secure with #8 x 1
Z\x
" deck screws.
Center the 2" x 4" x 28" board behind
bottom board as shown. Secure with
#8 x 1
Z\x
" deck screws.
Caution: Failure to pre-drill and countersunk the
boards may result in split lumber.
SEE PAGES 6 AND 7 FOR
HOLE PATTERNS