7
CLEARSPAN
™
POLY BUILDINGS
Revision Date: 03.13.08
LAY OUT THE BUILDING SITE
After the site is prepared, identify the location of the shelter
corners helps to square the frame after it is assembled.
Taking these steps
before
assembling the shelter saves
time and ensures that the structure is positioned as
desired. The following procedure is a suggested method.
Its use depends on the size of the shelter, shelter
application, the footings, and the method used to anchor
the shelter.
SQUARE THE SITE
1. Identify a corner where a building rafter will be
positioned, drive in a stake, and string a line the exact
width of the building and stake in place. (Width of the
rafter is measured from center-to-center of the rafter
legs.)
2. Sting a line at least as long as the building from the first
stake at 90°.
NOTE:
A transit can be used to ensure an accurate 90°
angle, or the 3-4-5 rule can be used. Refer to diagram.
Using multiples of 3-4-5 such as 6-8-10 or 12-16-20
helps to maintain an accurate 90° angle.
ASSEMBLING THE FREE-STANDING BUILDING
COMPONENTS
NOTE
: Assistance is required to assemble the shelter.
RAFTER ASSEMBLY
Gather the parts:
• Rafter pipe (#42R3501D)
• Rafter pipe (#42R3501) & rafter pipe (#42R3502)
• Purlin connection bracket (#105350)
• Rafter foot base (#105241)
• 3.25" pipe fitting (#105092)
• ½" x 1½" carriage bolt, nut, and washer
• ½" x 4½" bolt and ½" nut
• ½" x 5½" bolt and ½" nut
Each rafter assembly consists of these five (5) pipes: 2
(#42R3501D), 2 (#42R3501), and 1 (#42R3502). The
#42R3501D pipes include
two drilled holes near the bottom
to connect the rafter foot.
End Rafter Assembly Procedure
1. Select the five (5) pipes needed to assemble a rafter
and arrange these on a flat surface as shown below for
assembly.
2. Slide the swaged portion of each rafter pipe into the
plain end of the pipe and align the 9/16" holes.
3. After squaring the position of the building and placing
a stake at all corners, string a line between the stakes
to mark the base of the building.
4. Next, mark a line on the ground using the strings
between the stakes as guides.
NOTE:
There is no need to mark the rafter spacing.
The purlins, when installed correctly, will maintain even
rafter spacing throughout the length of the shelter.
5. After marking the outline of the building, remove
the strings and continue with the rafter assembly
instructions.
(#42R3502)
(#42R3501)
(#42R3501D)
ATTENTION:
All pipe connections for the two (2) end
rafters are secured using the ½" x 4½" bolts (105370B).
During the rafter assembly, insert the bolts so the bolt
head is toward the outside of the rafter when the rafter
is set in position. The nuts will face to the inside of the
assembled frame. See diagrams on the next page.
