Curbsend
Free tool for concrete contractors

Concrete Slab, Patio and Driveway Estimate Calculator

Enter the slab's length, width and thickness, the base and the finish. The calculator works out cubic yards with waste, gravel base, forming, reinforcement, finishing labor and any short-load fee.

Job details

Your pricing
Estimate
before sales tax
$3,956.30
Concrete: 6.5 cu ydArea: 480 sq ft
Labor
Set forms (88 ft)7.5 hr × $65.00$487.50
Grade and compact base6 hr × $65.00$390.00
Place and broom finish (480 sq ft)16 hr × $65.00$1,040.00
Materials
Ready-mix concrete, 4 in6.5 cu yd × $204.00$1,326.00
Gravel base, 4 in compacted6 cu yd × $54.00$324.00
Wire mesh480 sq ft × $0.26$124.80
Form boards and stakes88 ft × $3.00$264.00
Total before tax$3,956.30

Labor at $65/hr, 20% markup on materials, equipment and disposal. Material prices and crew speeds are starting values; set your own in the app.

Send this as a quote from the driveway

In Curbsend, this calculator runs with your own prices and speeds, turns the result into an itemized quote with good, better and best options, and texts it to the customer to approve and pay a deposit from their phone.

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Pricing tips for concrete

  • Order a little extra. Running short on a pour costs far more than a partial yard left over.
  • Short-load fees can add a lot to small pours. Show them as their own line so the customer sees why small jobs cost more per yard.
  • Decorative finishes like stamping or exposed aggregate make a natural better or best option.

Starting values this calculator uses

Material costs and crew speeds vary by market and by crew. These are the defaults; in the app you replace them with your own, and every estimate uses your numbers.

  • Ready-mix$170/cu yd
  • Short-load fee (under 4 yd)$100
  • Gravel base$45/cu yd
  • Wire mesh$0.22/sq ft
  • Rebar grid$0.55/sq ft
  • Form boards and stakes$2.5/ft
  • Color, release and sealer$1.25/sq ft
  • Forming speed12 ft/hr
  • Grade and base prep80 sq ft/hr
  • Place and finish30 sq ft/hr
  • Pump truck$450
  • Breakout speed30 sq ft/hr
  • Concrete disposal$0.6/sq ft

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