phantom309,
The shop is a metal arch style building, basically an aircraft hangar. Ths sides come up about 5 feet then half round on top.
Yes, a metal channel gets bolted to the slab with anchor bolts then filled with grout.
All the pipes for office, bath and machine shop are just below the top of the slab for service as funds become available.
The building is still about 2 weeks away from being delivered....
Stay tuned !!