Re: Building Garage 30\'x40\'x15\'
Here's what my garage/shop slab looks like (24'x42', 6" thick, #4 rebar grid 24" x 24", 12' walls, two 10'x10' rollup doors, one window, one 36" mandoor, steel frame, siding and roof). The Building Dept makes us use 5/8" anchor bolts cast in the concrete. I assume that you'll drill the slab and install expansion bolts to hold the structure to the slab.