Driveway Extension Cost Calculator
Calculate the cost to widen or extend your driveway with concrete, asphalt, or pavers.
A typical 200 sq.ft. concrete driveway extension costs between $1,200 and $2,000. Asphalt extensions are generally 20-30% cheaper, while pavers can cost double due to labor intensity.
Calculate Your Estimate
Project Location
Choose which state the project is located.
Driveway Specs
Define the size and material for your extension.
Dimensions (Feet)
Total Area: 200 sq.ft.
Material
Slab Thickness
Site Prep & Extras:
Why Use Our Driveway Calculator?
Adding parking space adds value to your home, but costs vary significantly based on material and thickness. Our tool helps you compare the cost of a simple gravel pad versus a heavy-duty RV parking slab reinforced with rebar.
Manually Calculating Driveway Extension Costs
To estimate manually:
- Calculate Sq.Ft: Width × Length. (e.g., 10' wide x 20' long = 200 sq.ft).
- Material Cost: Concrete ($150/yard), Asphalt ($100/ton), Gravel ($50/ton).
- Labor Cost: Grading ($1-$2/sf) + Forming/Pouring ($3-$5/sf).
- Reinforcement: Rebar adds ~$1.00/sf.
Manual Calculation Formula:
Est. Cost = (Sq.Ft × Price_Per_SF) + Grading_Fee + Permit
*Example: 200 sq.ft Concrete ($8/sf) + Grading ($400) = ~$2,000.
Frequently Asked Questions
How much does a driveway extension cost?
Concrete extensions average $6-$10 per sq.ft. Asphalt is cheaper at $4-$7, while gravel is the budget option at $2-$5.
Do I need a permit?
Yes, most municipalities require a permit for driveway modifications to check setbacks and impervious surface limits.
Should I use rebar?
For concrete driveways, rebar or wire mesh is highly recommended to prevent cracking from vehicle weight and ground movement.
How thick should it be?
Standard cars need 4 inches. If you plan to park heavy trucks or an RV, upgrade to 6 inches.
Can I pour new concrete next to old?
Yes, but there will be a visible seam and likely a color difference until the new concrete ages.
How long until I can drive on it?
Concrete needs 7 days to cure for vehicles (24 hours for walking). Asphalt can be driven on in 2-3 days.