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Step 4: Long Beam Assembly
Part 1
A: Connect one (649) Outer End Right and one (650) Outer End Left using two 5/16 x 1-1/2” Hex Bolts (with
5/16” lock washer, 1/4-5/16” large washer and 5/16” t-nut) as shown in g. 4.1 and 4.2. Notice orientation of bolt
heads.
B: Connect one (656) Inside Beam to each end of one (653) Inside Long Beam using two 5/16 x 1-1/2” Hex Bolts
(with 5/16” lock washer, 1/4-5/16” large washer and 5/16” t-nut), in the middle holes, as shown in g. 4.1 and 4.3.
Notice orientation of bolt heads.
C: Repeat Steps A and B to make two Outer Beam Assemblies and two Inside Beam Assemblies.
HardwareWood Parts
2 x (649) Outer End Right
2 x (650) Outer End Left
2 x (653) Inside Long Beam
4 x (656) Inside Beam
8 x 5/16 x 1-1/2” Hex Bolt
(5/16” lock washer, 1/4-5/16” large washer, 5/16” t-nut)
5/16” T-nut
Fig. 4.1
Fig. 4.2
1/4-5/16”
Large Washer
5/16 x 1-1/2”
Hex Bolt
Tight
5/16” Lock
Washer
5/16 x 1-1/2”
Hex Bolt
(656) Inside
Beam
(649) Outer
End Right
(656) Inside
Beam
Make sure bolt heads are
on the sides as shown
for each Beam Assembly
Fig. 4.3
(653 Inside
Long Beam
Use the
middle hole
(650) Outer
End Left
Outer Beam
Assembly
Inside Beam
Assembly
5/16”
T-nut
5/16” Lock
Washer
1/4-5/16”
Large Washer
Tight