How Thick Should an Asphalt Driveway Be? 2 inches thick 25% 3 inches thick 37% 4 inches thick 37% Get Free Quotes Today! Question: How Thick Should an Asphalt Driveway Be? Top Answer (37% of 8 votes): 3 inches thick. Answer: 4 inches thick Explanation: Normal the driveway is 2 to 4 inch asphalt WK Construction and paving Answer: 3 inches thick Explanation: 3"of compacted asphalt is plenty for a residential drive TRUESTRONG Paving co Answer: 4 inches thick Explanation: You should make sure your asphalt is at least 4 inches thick for proper foundation The Asphalt Company Get Free Quotes Today! Find Local Pros Free Asphalt Driveway Installation Cost Estimates Related Questions Should Topsoil Be Removed Before Building an Asphalt Driveway?Top answer: Yes How Thick Should Asphalt Driveway Sub-Base Be?Top answer: 4 inches What is the average width of a driveway that fits one car?Top answer: 10-12 feet wide How Long Does It Take for an Asphalt Driveway to Fully Cure?Top answer: One week Can I Put an Asphalt Over My Old Concrete Driveway?Top answer: In most cases