The Test Caps and carriage bolts will be
used on the hubs at the top of the first tier of
the dome.
Fold any excess greenhouse covering over
the hubs on the top of the first tier to make a
pleat.
Insert the carriage bolt through the pleat,
and through the center ring of the hub.
Push the Test Cap into the hub opening,
securing the greenhouse covering to the
hub.
On the inside of the dome, thread a Test
Cap over the carriage bolt, and secure with
a washer and nut.
How to Build a Greenhouse Door
We have included 2 extra struts and extra heavy duty zip ties to help you build a door for
your greenhouse. You can use this same technique to build vents for your greenhouse.
After you cover the dome with greenhouse
plastic, cut the plastic along two sides of
one of the triangles.