Concrete Flatwork contractors in Washington

Project guide

Hiring concrete flatwork contractors in Washington

Concrete flatwork covers everything flat and horizontal: garage and shop slabs, patios, sidewalks, equipment pads and aprons. Most of what determines whether a slab lasts happens before the truck arrives. The subgrade is compacted, a gravel base of about four inches is placed and compacted, forms are set to grade with slope away from the building, and reinforcement, typically wire mesh or #3 or #4 rebar on chairs, is placed. Residential slabs are usually four inches thick and poured at 3,000 to 4,000 psi; anything that will see trucks or equipment goes to five or six inches. Control joints are cut at intervals of roughly two to three times the slab thickness in feet, so about every eight to twelve feet on a four-inch slab, because concrete will crack somewhere and joints tell it where. Concrete needs about seven days before foot traffic and twenty-eight to reach design strength.

GradeLine lists 15 concrete flatwork contractors that serve Washington.Compare their work and equipment, then confirm availability and service area before requesting a quote.

Listed businesses are based in Chewelah, Long Beach, Woodland, , Davenport, Ellensburg, though most crews travel well beyond their home city.

What concrete flatwork work costs

Standard broom-finish flatwork typically runs $6 to $12 per square foot installed, so a 20 by 20 foot patio lands around $2,500 to $5,000 and a two-car garage slab $4,000 to $8,000. Removing an old slab adds $2 to $6 per square foot, and pumping, thickened edges or a heavy-duty six-inch pour push the number up from there.

Ranges are national and approximate; regional labor rates, material prices and site conditions move them in both directions.