Lay Out the Building Site
After the site is prepared, lay out the building site.
Taking these steps
before
assembling the shelter saves
time and ensures that the structure is positioned and
assembled as desired.
To ensure the proper installation of the end wall frame
and door assembly, the ground posts must be driven to
the proper depth. See the instructions that follow.
Square the Site
1. Identify a corner where a ground post will be
positioned and drive the first ground post into the
ground.
NOTE:
Insert the ground post driver into the top of the
ground post to protect the post and drive the post into
the ground. The top of the post must be six (6) inches
above
the finished grade when properly driven.
ATTENTION:
The pre-drilled holes MUST be positioned
facing to the inside/outside so these can be aligned with
the holes in the rafter legs.
2. After the first corner ground post is in place, string a
line the width of the building and drive the second
ground post into the ground just enough to hold it in
place.
ATTENTION:
Width of the greenhouse is measured
from center-to-center of the end rafter ground posts.
Use a transit or line level to drive the second corner post
to the same depth as the first ground post.
3. Sting a line at least as long as the building from the
first ground post at 90
°
.
NOTE:
A transit can be used to ensure an accurate
90
°
angle, or the 3-4-5 rule can be used. See the
diagram below. Using multiples of 3-4-5 such as 6-8-
10 or 12-16-20 helps to maintain an accurate 90
°
angle.
4. After squaring the position of the building, measure
the building length and drive the next corner ground
post.
5. Repeat Step
4
for the last corner post.
NOTE:
The distance measured diagonally between
corner posts must be equal for the building to be square.
6. Check all dimensions (and adjust if needed)
before
driving the remaining posts to the required height.
7. After all corner posts are accurately installed, tie a
string line between the tops of the corner ground
posts on the same side of the shelter. The string is
used to identify the tops of all remaining ground
posts.
8. Use a tape measure to mark the 48" on-center
locations of the remaining ground posts.
9. Drive the remaining ground posts into the ground at
the required 48" on-center width and the height
identified by the string.
NOTE:
Verify that the holes in the ground posts are in
the proper position and that each post is plumb and
driven to the correct depth.
10. Continue with the
Rafter Assembly
steps that
follow.
Ground Post
Rafter Leg
Inside of the
greenhouse
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