7
CLEARSPAN
™
CARPORTS
Revision date: 12.26.07
ASSEMBLE AND POSITION BASE RAILS
NOTE
: Assistance is required to assemble the carport
frame.
Gather the parts:
• Square tubing (See chart below)
• 1.75" x 1.75" square tube insert (#104075)
• 1-way square tube fittings (#104624)
• Tek screws and nut setter 3/8'' x 2-9/16 magnetic
The base rails consist of 2" x 2" square tubing and run the
length of the building. The tubing is connected by a
16" square tube (1.75" x 1.75") insert. Each frame length
has a different configuration of 2" x 2" square tubes.
Listed below are the shelter lengths and the needed tubing
for one (1) base rail.
Shelter Length Tubing Requirement
20'
124" & 124"
25'
(2) 124" & 60"
30'
(2) 124" & 120"
35'
(2) 124" & 120" & 60"
40'
(2) 124" & (2) 120"
45'
(2) 124" & (2) 120" & 60"
ASSEMBLE BASE RAILS
1. Locate your 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
would require two (2) 124" tubes.
2. At each splice, insert the 1.75" x 1.75" square tube 8"
into one of the 2" x 2" tubes and secure with two Tek
screws.
3. Slide the remaining 2" x 2" tube onto the exposed
portion of the insert and secure with Tek screws. See
diagram below.
4. Repeat the steps for all base rail splices (if present)
and for the remaining base rail.
LAY OUT THE BUILDING SITE
After the site is prepared, marking the ground where the
shelter will be situated and identifying 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.
This procedure may not be needed for shelters that include
a base rail. It can be used, however, as a guide when
positioning the frame on the site during assembly.
SQUARE THE SITE
1. Identify a corner where a building rafter or base rail
will be positioned, drive in a stake, and string a line the
exact width of the building and stake in place.
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.
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. Continue with the base rail assembly procedures that
follow.
2" x 2"
Insert
2" x 2"
#104075
1.75" x 1.75" Square tube insert
Tek screws
