Check local codes and permits
Mark the slab location and dimensions
Call utility locating services before digging
Excavate the area to the required depth
Remove roots, rocks, and loose soil
Compact the subgrade
Add and compact a gravel or crushed stone base
Set and level form boards
Square the forms and brace them firmly
Install vapor barrier if needed
Place reinforcement such as rebar or wire mesh
Pour the concrete into the forms
Spread the concrete evenly
Screed the surface level
Float the surface to smooth it
Cut control joints at proper intervals
Finish the surface as desired
Let the concrete set before edging or final finishing
Cure the slab by keeping it moist
Remove forms after the concrete gains strength
Seal the slab if desired after curing