I need someone to install a pull down attic ladder (22.5" by 54") in my home with 8' ceilings. There is already a smaller hole in the ceiling (from a removable panel) so you should just need to expand that and install it. The rafters are 22.5" apart and I already have the ladder from home depot. While the hole is in the ceiling, I'll need two pieces of plywood set up there also so I can store more stuff.