I am converting a child's cubby into (another) chicken house. It has no door and I want to add one. I'm just using marine plywood.... The difference in cost between a 122cm sheet and 244cm sheet is quite a bit and I don't have any immediate need for the offcuts though they would be useful for "something". If I were to use the smaller sheet, I'd be left with a gap of about 15cm in the doorway. Options would be to leave it open, or extend the door with more ply or something else (lattice? Something else to allow airflow?) I'm in a low predator area. No raccoons, no foxes, just domestic type animals around here. The house will be enclosed in a run, so nobody will (should) be able to get to the door, anyway. I don't close the pop door on my other house, which is also inside an enclosed run, but this is a people-sized door, as I want to be able shut out wind/rain in winter. Does anybody have any good ideas as to how I could get away with using the cheaper, too-short, sheet? Would leaving a large gap at the top of the door be an issue? Any ideas or feedback would be gratefully received.