A true contractor will never pour flat-work directly onto sod or dirt. All of the moisture in the soil will cause the concrete to heave, shift, settle, crack and scale. Seitz & Sons removes all of the sod/dirt and replaces it with a minimum of 2-4" of crushed compacted limestone.
Seitz & Sons pours all concrete at a minimum of 4" thick. This is the standard thickness of most concrete surfaces including but not limited to; driveways, sidewalks and patios. Concrete poured under 4" thick will have less integrity and is prone to cracking.
The expansion or contraction joints can either be cut by hand or with a saw. These joints separate concrete slabs into squares or rectangles to help control cracks.