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20
Traditional End Walls:
Note:
If you would like to build lower cost “Scissor
Doors” instead, please skip to page 30.
There are a great many ways to go about this, few
of which could be considered wrong. We are
illustrating how we decided to craft a traditional end
wall for our 14' x 200' trial tunnel. There are no
rules. Build your end wall however you like. We do
hope you are able to get some ideas and inspiration
from ours. This is how we did it...
Note: Some of the photos shown here are of our
Quick Hoops Gothic Tunnel.They are only used to
illustrate the methods, which are the same.
1.
Poly Latch wire channel:
this is used to hold
the end wall plastic on as well as secure the
main covering later on.
a. Start by attaching wire channel to the outside
and top of the end wall bow by using clamps
and forming it around the bow. Start at the
hipboard and work all the way over the ridge
pole.
b. Secure with #10 x 3/4" phillips self-drilling tek
screws about every 12". Adding an extra one
at each end of the channel is a good idea to
prevent failure, since the channel has
preloaded stress and will want to spring back
quite a bit if allowed.
c. Continue all the way over and cut to length just shy of the top of the opposite hipboard.
2.
Endwall Baseboard:
a. With a 5/16" bit, pre-drill two holes as
shown through both sides of the endwall
ground posts on both sides of the tunnel as
shown to the right.
b. Precut a 5/4" x 6" x 16' decking
board to 12’
long. Place it across the bottom of the end
wall with one end flush to the outside of the
baseboard. Using the pre-drilled holes
made in step 2.a. above, drill through the
board and fasten to the ground post with
5/16"-18 x 3.5" carriage bolts inserted from
the outside and secure with a 5/16" hex nut.
1.a.
1.a. - c.
2.a.
7617.999 Rev 06/21/2021 | AL, JG, ms