Cleaning 1x3 Kitchen

[bbxylee.m]

I have two 4 yro boars in a 3x5 cage. They spread aspen all over their fleece. They run it all over the cage, no matter where it's placed, how often i clean it, etc. I've tried low plastic bins before, but my pigs pretty much refuse to jump. I cut a 'door' in it, but the aspen leaked out from there. Does anyone know where i can get a 3 grid wide kitchen? Or maybe how to make one?