check out the Canvas craft web site. they make a suitcase style house kit. they offer it in non insulated and insulated. it is the frame for the fabric and the fabric, you build the floor for it so you can lay out the holes how ever you like . I had one of their 4' x 8' ones in the fully insulated fabric. I built a extra beefy floor for mine to where I put 6 catch covers in it(3 on each half of the house). it was a good house but I ended up not using it enough and sold it. the canvas craft houses are higher priced but they are worth it in the long run.