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Step 12: Floor Back Assembly
Pre-drill all pilot holes using a 1/8" drill bit before installing the lag screws.
A: On the back side of the assembly attach (1768) Lower Back flush to the bottom and outside edge of (1771)
Posts with 2 (LS3) 1/4 x 3" Lag Screws (with flat washer) in the top, pre-drilled holes and 2 (S7) 12 x 2" Pan
Screws (with 3/16" flat washer) in the bottom holes as shown in fig. 12.1 & 12.3.
B: Attach Floor Back Assembly from Step 11 to both (1771) Posts with 2 (H5) 1/4 x 4-1/2" Hex Bolts (with lock
washer, flat washer and t-nut) through (1762) Floor Back. Notice the hole orientation towards bottom of board.
(fig. 12.1 & 12.2)
Fig. 12.1
Front
Wood Parts
1 x Floor Back Assembly (from Step 11)
1 x
Lower Back 1 x 5 x 38-1/2"
1768
H5
1771
1768
LS3
S7
2 x
S7
2 x
LS3
2 x
H5
Back
1768
Hardware
#12 x 2" Pan Screw (with 3/16" flat washer)
1/4 x 3" Lag Screw (1/4" flat washer)
1/4 x 4-1/2" Hex Bolt
(1/4" lock washer, 1/4" flat washer, 1/4" t-nut)
27
Fig. 12.2
1762
Hole towards bottom
Floor Back
Assembly
1771
Fig. 12.3
LS3
S7
H5
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