It's best to get everything done on 3 sides before you go on to the back.
It's just easier to get in and out while there are only three sides up.
It's a must to have a little help when you do the front windows.
Basically, someone has to hold the pieces inside while you staple from the outside.



I put extra verticle pieces in this one, every 24". I don't normally do that, but this one is "MINE".
I don't plan on building another one for myself for at least 15-20 years.
You still have to have those verticle pieces where the seams are, but you can leave the others out.

Next is the back side where I prefer to put the door.
I personally don't like much of a window in the back.
If you want that, you can just make the back the same as the front and put the door under one of the windows.
I put a small window on one side and a taller door on the other...on the back side.

To make the door, I simply cut a 24" piece out of the middle of one of the full sheets of plywood.
That will give it good support around the door, and leaves a door that is a "perfect" fit.
for best results use a table saw, but a skill saw will work too.
If you need a wider door, just keep it centered in that sheet of plywood.
I've done up to 36" doors for the bigger fellas.


Then I frame the door with the same 2x2 material.
Make sure you leave the space at the bottom to match the base.


Trying to keep these post fairly short with all the pics. More to come in part 5.