For Kansas City homeowners, a 20×20 driveway (400 sq ft) typically falls between affordable small project and medium-size structural pour. The final cost depends on thickness, base prep, access, and finish type—but value go here comes from proper construction, not shortcuts.
Key Cost Drivers
- Base preparation: 6–8" of compacted crushed stone to handle vehicle loads. Slab thickness: 5–6" recommended for passenger vehicles in KC’s clay soils. Reinforcement: #3 or #4 rebar grid on chairs, dowels at the garage and sidewalk joints. Air-entrained mix: Crucial for freeze–thaw and deicer durability. Finish: Broom finish for traction; stamped or colored finishes add cost. Drainage: Proper slope away from garage prevents winter ice and water ponding.
Site Factors
- Access: Limited truck reach or tight spaces increase labor. Demolition: Removing an old driveway adds hauling and disposal costs. Weather: Hot summers require retarders; cold months need accelerators or blankets.
KC Construction Tips
- Compact base properly to avoid settlement. Cut control joints 24–30× slab thickness (in inches). Apply curing compound immediately after finishing. Keep deicers off the slab for the first winter.
Bottom Line
A 20×20 driveway’s price reflects its quality of prep and finish. visit this page check this out A detailed bid get started with base, steel, jointing, and curing spelled out ensures your KC driveway performs beautifully for decades.