Concrete Slab or Shed Pad
This is the whole project as estimators actually run it — each step feeds the next, and the right tool is embedded exactly where you need it.
Step 1: Excavate & form
Dig 8 in: 4 stone + 4 concrete; square the forms. figure your excavation numbers.
Step 2: Stone base
4 inches compacted crusher run for drainage & bearing. run the numbers with our crushed stone tool.
Step 3: Reinforce
Rebar grid 12–18 in OC or mesh; chairs to mid-slab. rebar estimate tool.
Step 4: Order concrete
Volume ÷ 27, +5–10%; check short-load threshold. concrete slab estimate tool.
Step 5: Bags vs truck
Under ~1 yard bags win; over, ready-mix. figure your ready mix numbers.
Done? Compare approaches on the materials comparison pages, check your state's pricing, or dive into the engineer's field guide.
Reviewed: · methodology.