Now I betcha you have one of these type of cages lying around. If you don't, but a used one as they are pretty cheap.I have seen them at bird shows for 3-4 dollars.
Now there are several ways to cut your cage apart. A dremmel tool has a fairly good cutting wheel that will saw through the bars. I had pretty good luck until about half way through and had to switch to lock cutters. Be sure to measure half of the cage and mark it with magic marker. Makes it easier to see when you are cutting.
Those red dots are painted on top to get the wood part to line up perfectly. No matter how good you are with a cutting wheel or lock cutters some of the bars will be off. The paint on top is to line up the holes on the frame so you'll know where to drill.
See how the red dots make it easier to drill the holes the right spaces apart? After you get a few holes drilled you can start to fit onto the bars, making it easier to mark the rest of the holes Sometimes the bars aren't all even and if you get a few lined up in their holes the rest can be marked.
We didn't have any c clamps that were small enough to hold the wood in place so we used good ol duct tape. Now for you guys that are leery of using a miter saw, you can get a miter box( some are plastic and are around 7 bucks) and a hand saw to cut your wood pieces. Or you can measure out the whole thing and get the guys at the lumber yard to cut them for you . There might be a small charge for this.
The wood you will need for this project is a 2x4 to make a base . Remember you cut the cage in half and you will need to raise it up so both sides of the cage are equal. You will also need a trim piece that is an inch wide. Trim pieces come in 8 foot lengths.. And finally you will need a 2 inch wide piece of floor trim which also comes in 8 foot length This is to put on the sides of the cage.
Tune into tomorrow bird fans as we finish this up. ( we are going to buy some small framing nails and c clamps! too)