Quote:
Ren,
The purpose of my broody cage is to break them of being broody

I give them just about 2'x2' of space.
If you are wanting to build a cage to allow the bird to actually sit and hatch - -then this is what I think you need to keep in mind:
For the most part, the hen is going to sit on the clutch of eggs. She will need to have access to both food and water, and she'll need a place to poo. If we figure that the area that will hold the clutch is about 16" square, that leaves you with an area of about 16"x20" for a feeder, water fount and 'bathroom'. If you can put the water and feeder outside the cage walls then there is a bit more room for 'potty breaks'. So your 32x20 space sounds doo-able - but might be a little tight. I think it would be worth a try.
Once the eggs hatch, I would consider that space too small. So you'll want a bigger cage/box to move them to. So maybe you want to have her hatch out the clutch in that bigger box so you don't have to shift her and the chicks?
When I let a hen hatch eggs, I give her a 4'x4' space with a wooden apple box in it to act as the nest box. Once the chicks hatch, they can stay in that 4x4 area for a good three weeks. then I can move them to more permanent housing.
I'm sure that there are way more viable approaches than the one I just described
Dave
If anyone goes broody, I want to break them of it. None of our eggs will ever be fertile - it would be useless to let them go broody. Plus, Drama tends to be a clutz, anyway - and if we ever put eggs under her, she'd probably smash them unintentionally.
Edited to add: Wasn't clear with my first post. We're going to try to hatch some BCMs in an incubator.