I am planning to build a large warehouse and want to use Pikestuff kits to do this. The descriptions on the PikeStuff website left me a little unclear and I was hoping to get some clarification - are the door and window openings already cut out, or are the walls "solid" to begin with, allowing you to cut out doors/windows as you wish? A kit I am considering using is the "Tri-Star Industries" kit (PIK-8013). Would I be able to cut the walls as a like, or are the pictured door and window openings already cut out?
The ones I have worked with have solid walls, with indents on the insides where doors and windows can go. After selecting locations for the openings, those locations can be easily cut out.