Instructions / Assembly

STEP 5: INSTALLING BACK BASE RAILS
The Back Enclosure is the frame components that enclose the back of the building.
Layout the Base Rail components as shown in the illustration of your building size. Note that all back frame components
are 2” x 2” square tubing. See illustration below for length dimensions of base rail tubes.
The base rail assembly is made up of straight length 2” square tubes and T-Connectors. When you have all of the base
rail assembly together place the assembly between the back side base rails of the building. Fasten the end base rails to
the pins of the side base rails with Angle Brackets. The spaces between the vertical pins should be equal. (12’ wide build-
ing 68” space, 20’ wide building 57”, 24’ wide building 69” and 30’ wide building 69 1/4”.)
Fasten joints with two 1” self-drilling screws on top of the base rail.
Anchor the T-Connectors to the concrete slab or footing as you did the side base rails with 1/2” x 7” wedge anchors.
STEP 6: INSTALLING BACK VERTICALS
The Back Vertical is a 2” x 2” x 81 3/4” tube with one swaged (reduced) end. The Vertical Extensions are 2” square tubes.
The length is shown in the illustration below.
Join the Back Verticals and the appropriate Vertical Extensions. (do not install screws at this time) Place the
assemblies on the base rail pins, plumb the assembly, slide the extension tube up to touch the rafter or peak and attach it
with a Flat Bracket on the inside of the building
. It may help to attach the flat bracket to the vertical extension before you
install the assembly. Let 2” of the bracket extend beyond the end of the extension.
T-CONNECTOR
T-CONNECTOR 3 PLACES
T-CONNECTOR 3 PLACES
T-CONNECTOR 4 PLACES
BACK VERTICAL
BACK VERTICAL
3 PLACES
BACK VERTICAL
4 PLACES
EXTENSION ON:
8’ HIGH—25 1/2”
10’ HIGH—49 1/2”
12’ HIGH—73 1/2”
BACK VERTICAL
3 PLACES
EXTENSION ON:
8’ HIGH—23”
10’ HIGH—47”
12’ HIGH—71”
37” LONG
2 PLACES
47” LONG
2 PLACES
EXTENSION ON:
8’ HIGH—37 1/2”
10’ HIGH—61 1/2”
12’ HIGH—85 1/2”
57 3/4”
2 PLACES
49” LONG
2 PLACES
59” LONG
2 PLACES
EXTENSION ON:
8’ HIGH—43 1/2”
10’ HIGH—67 1/2”
12’ HIGH—91 1/2”
EXTENSION ON:
8’ HIGH—26”
10’ HIGH—50”
12’ HIGH—74”
59 1/8” LONG
2 PLACES
49 1/8” LONG
3 PLACES
EXTENSION ON:
8’ HIGH—26”
10’ HIGH—50”
12’ HIGH—74”
EXTENSION ON:
8’ HIGH—43 3/4”
10’ HIGH—67 3/4”
12’ HIGH—91 3/4”
FLAT BRACKET
TYPICAL ON ALL
BUILDINGS
(ON INSIDE OF
BUILDING)
30’ WIDE
24’ WIDE
12’ WIDE
20’ WIDE
#12 SELF-DRILLING SCREW
PAGE 11
TYPICAL