Start with the building supplier's foundation plan
Before a contractor prices the final building slab, provide the drawings or foundation plan from the building supplier when available. The slab should match the building, not a generic idea of what a metal-building slab should look like.
Anchor bolt placement matters
Anchor locations need to match the building system. Confirm who is responsible for layout and placement and what drawing they are following. Do not rely on a verbal dimension if a formal plan is available.
Time the slab with building delivery
Ask what needs to happen before the building package arrives and how much coordination is needed between the slab contractor and erector. Delivery timing, site access, and staging space can all matter on acreage.