CLEARSPAN
™
JOB MASTER BUILDINGS
16
Revision date: 07.23.09
ASSEMBLE OUTRIGGER BASE RAILS
This procedure describes one way to assemble the
outrigger base rail and to attach the heavy-duty 1-Way
connectors, used to secure the rafter legs, to the base rail.
Gather the parts:
• Square tubing (See chart below.)
• Tek screws and magnetic nut setter (3/8'' x 2-9/16")
The base rails consist of
2" x 3" square tubing
(plain and
swaged) and run the length of the building. Each shelter
length has a different configuration of
2" x 3" square tubes
for the outrigger base rails. The tubing requirements
for
each base rail
for the different building lengths are listed
below.
(S = Swaged, P = Plain)
ASSEMBLE BASE RAILS
1. Locate the shelter in the table above and determine the
required tubing for the two base rails.
Example:
For a shelter that is 20' long, one base rail
requires one (1) 123" swaged tube (R23S123) and one
(1) 126" plain tube (R23P126).
2. Insert the swaged end of each tube into the plain end
of a tube until the base rail is assembled.
NOTE:
Use a hammer and wood block to lightly tap
and seat the tubes together if needed.
3. Repeat the procedure as needed for the remaining
base rail.
4. Install one Tek screw at each splice on
one side
of the
rail to secure the two tubes. DO NOT install the Tek
screws on the top, bottom, or outside surface (where
the metal panels will be attached) of the outrigger base
rails.
ATTACH 105088 1-WAY CONNECTOR (RAFTER FEET)
Gather the parts:
• Assembled base rails
• 1-Way connector (#105088)
• Tek screws and magnetic nut setter (3/8'' x 2-9/16")
• Tape measure and marker
NOTE:
Before attaching the 105088 connectors, verify
that Tek screws are not installed on the top or bottom
of the outrigger base rail. Installing Tek screws in these
locations may interfere with the installation of the #105088
connectors for the rafters. (Move screws if needed.)
1. Using Tek screws, attach the first square tube fitting
(#105088) to the top of the base rail flush with the end
of the base rail as shown.
2. From the
center
of the installed square tube fitting
(#105088), measure and mark 48" increments along
the length of the base rail. These marks represent the
48" on-center rafter positions.
3. Center a square tube fitting (#105088) on each mark
and secure the fitting to the rail using Tek screws.
4. Repeat the steps for the remaining base rail.
NOTE:
Rafter spacing is measured center-to-center.
5. After the base rails are assembled, continue with the
OUTRIGGER FRAME ASSEMBLY.
48"
center-to-center
Tek screw
Top of Base (3" wide)
#105088
Square Tube
Fitting
Center of the fitting
Tek screws
Shelter Length Tubing Requirement
20'
1 @ 123" & 1 @ 126"
24'
2 @ 123" & 1 @ 54"
28'
2 @ 123" & 1 @ 102"
32'
3 @ 123" & 1 @ 30"
36'
3 @ 123" & 1 @ 78"
40'
3 @ 123" & 1 @126"
44'
4 @ 123" & 1 @ 54"
