Ask five contractors how thick a driveway should be and you'll get five answers, most of them shaped by what's cheapest to pour. Here's ours, and the reasoning behind it.
Four inches is the industry habit, not the right answer
A lot of residential driveways get poured at four inches because that's what the bid next door said. Four inches can work — on perfect ground, with light vehicles, forever. Nebraska ground isn't perfect and vehicles keep getting heavier. Pickups today weigh what work trucks weighed a generation ago, and one visit from a loaded delivery truck or a camper puts more stress on the slab edge than years of car traffic.
The cost difference between four and five inches is a fraction of the job — most of what you pay for is prep, forming, finishing, and the crew. The extra inch is cheap strength.
Why we pour five inches minimum
Slab strength doesn't scale evenly with thickness — going from four to five inches increases the slab's load capacity dramatically because bending strength rises with the square of thickness. That extra inch is the difference between a driveway that shrugs off a loaded trailer and one that cracks at the edge the first time one parks on it.
Five inches with rebar on a compacted base is our standard. It's not a premium option on the quote; it's just how we build a driveway.
When to go thicker
If you regularly park heavy equipment, a loaded dually, or a big camper — or the driveway doubles as an approach for farm machinery — tell Jerry at the estimate. High-load zones can get six inches or more, and it's far cheaper to pour it right than to fix a broken slab later.
The honest answer starts with your ground and your vehicles, which is exactly what the free on-site estimate is for.
Related service
Concrete DrivewaysFive inches thick with rebar, on a base built for Nebraska freeze-thaw.