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Three inches is a great thickness for a residential asphalt driveway that sees minimal to moderate traffic from cars, SUVs, and pickup trucks. However, a thicker driveway can better withstand the weight of a heavier vehicle, such as a trailer or a recreational vehicle. If you drive a heavy vehicle on a thin driveway, you risk cracking and damaging it.

On average, asphalt dries within 24 to 72 hours, meaning it’s solid enough for light traffic—walking and careful driving. Full curing—when asphalt reaches peak strength—can take anywhere from three months to a year. During that time, heavy loads and sharp objects can leave marks. Weather, asphalt mix, and thickness all affect how quickly it dries and cures. If you want your asphalt to last, treat it gently until it’s fully cured. For the best results, check with a professional asphalt contractor for their advice.

The size of your driveway apron will vary based on your town's building codes. On average, they range between 12 and 24 feet wide and eight to 15 feet long. One end of the apron usually matches the width of the driveway—10 to 12 feet wide for a single-car driveway—while the street end flares out to allow cars to turn in and out.

The average cost of 1,500 square feet of asphalt ranges from about $10,500 to $22,500, depending on location, thickness, base material, and how accessible the job site is to crews and equipment. Keep in mind that your asphalt material cost may vary depending on its type, ranging from porous asphalt to heated blacktop. Standard asphalt costs $7 to $13 per square foot.