Interested in Building
Your Own Greenhouse? Here is How --
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Insert rebar into pipes on ground.
Stand rebar/pipe up and secure the
bottom end a little beneath the outer top edge of
the side plank. Screw securely.
With some neighborly help, bend the
hoop down over the top beam -- it will form a
perfect arch, but is under great tension in the
final position. Secure and do the
others. At both ends tack a nail on both sides
of the pipe where it rests on the top beam, sinking
the nails below the pipes' top surface so as not to
rip the plastic later. The interior hoops do
not require this.