How much does a concrete slab cost in Trenton, NJ?
Poured concrete pad with forms, gravel base, and rebar. Priced against New Jersey material costs, a typical DIY concrete slab in Trenton runs about $702 in materials — 14% above the national average. These are estimates only, not a quote — enter your real dimensions in the free calculator for a shopping list matched to your build.
Estimates only — not a quote.
Trenton cost breakdown
| Estimate | Low | Typical | High |
|---|---|---|---|
| Trenton (DIY materials) | $597 | $702 | $948 |
| National average | $524 | $616 | $832 |
Priced from the New Jersey material index — 14% above the national average. Based on a common-size concrete slab; enter your own dimensions for an exact number.
DIY materials estimate: $702. A contractor in the Trenton market (materials plus about 16 labor hours at ~$72/hr) estimates to $1,761–$2,361. Estimated DIY savings: $1,299 (65%).
Flatwork under about 200 sq ft is often permit-exempt; larger pours and anything structural generally are not.
Outside city limits, Mercer County is typically the permitting authority.
Get your exact Trenton price
Enter your dimensions for a materials list and cost estimate matched to your build.
Frequently asked questions
How much does a concrete slab cost in Trenton, NJ?
Materials typically run $597–$948 for a common-size project using Trenton-area pricing. That is an estimate, not a quote — our free calculator prices your exact dimensions.
Is it cheaper to DIY or hire a contractor in Trenton?
DIY materials estimate to about $702. A local contractor estimates to $1,761–$2,361 at the Trenton-area labor rate of roughly $72/hr, so DIY could save an estimated $1,299 (65%).
Do I need a permit for a concrete slab in Trenton?
Flatwork under about 200 sq ft is often permit-exempt; larger pours and anything structural generally are not. Mercer County and the City of Trenton rules can be stricter than the state baseline — run the free permit lookup for your ZIP before buying materials.
Why is Trenton concrete slab pricing different from the national average?
We apply a regional material cost index for the Trenton market — currently 14% higher than the national average. Labor is indexed separately at about $72/hr for the contractor comparison.
Other projects in Trenton
Concrete slab cost in nearby cities
Looking at the whole state? Concrete slab cost in New Jersey.