How thick should concrete be for a driveway?

We're having a new concrete driveway laid. The tradesmen we have hired mentioned different thicknesses depending on vehicle weight. What's the minimum depth that we can get away with to save money?

Asked by lauren on 30th Apr 2026
Expert Trade Answers
"Hello have they explained that for strength, you best lay reinforcing mess in the concrete pour me myself would put a depth of 5/6 inches , 2, inches first then lay 4,inches of concrete for your final layer, you can have the mix made up with Fibres, in the mix for added strength, All goes on what you can afford, please be carefull allow for Subbase, before concreting,"
Answered on 30th Apr 2026 - Member since Mar 2026 - report
"Depending on the weight of your vehicle 5 inches is just about the bare minimum you can lay"
Answered on 30th Apr 2026 - Member since Apr 2026 - report
"100-150mm type 1 mot - and for the concrete 4-5 inches"
Answered on 30th Apr 2026 - Member since Jan 2023 - report
"As a groundworker I would say 100/150 mm for a domestic car"
Answered on 30th Apr 2026 - Member since Jun 2025 - report
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