Seemed like a good first instructable. :-)
Step 1: Parts
4 - 10' X1" PVC pipe
6 - 1" pipe insulators
14 - 1" PVC elbows
10 - 1" PVC TEEs
Cost about $35
Cut the pipe into 10 - 2' sections,
8 - 4" sections,
and the rest into 1' sections.
Step 2: Put together the verticles
Do this 5 times.
Step 3: Start the base
Before you press them together too hard make sure that all of the TEE sections are pointing down and flat on the ground. This will help to ensure they all point straight up.
Then connect three of the vertical sections into these.
Step 4: Cross members and ends
Then connect the two sections at the TEE with a 1' section.
Connect this to the one end of the main base and add a vertical upwards from the elbows.
Repeat this on the opposite end.
And look at the pictures... its easier than reading all this. :-)
Step 5: Foam It Up!!
The insulators are split down the middle and are self adhesive so you can cut them, wrap them around and secure them in place very easily.
The foam insulators are just a bit wider than the elbows and tees so the doors can rest against them without rubbing PVC.