How Many Tons of Asphalt for 600 Square Feet?

Six hundred square feet of compacted hot mix is about 7.3 tons at 2 inches and about 10.9 tons at 3 inches, using 145 pounds per cubic foot. A 20 by 30 foot driveway is this area. The figures are planning estimates. The plant ticket is the real weight.

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A 20 by 30 footprint is the picture

Six hundred square feet is 20 times 30, a size people use for a two-car parking area in front of a garage. If your drive is that rectangle, you can use the tons below directly. If it is a different shape that only adds up to 600, the tons are the same only when the thickness is the same. Compacted hot mix is planned at 145 pounds per cubic foot. Tons equal area times inches divided by 12, times 145, divided by 2000. At 2 inches, 600 times 2 divided by 12 is 100 cubic feet, times 145 is 14,500 pounds, divided by 2000 is 7.25 tons, about 7.3 tons. At 3 inches, 600 times 0.25 is 150 cubic feet, times 145 is 21,750 pounds, divided by 2000 is 10.875 tons, about 10.9 tons.

Flares sit outside the 600

A 20 by 30 rectangle does not include a street flare. If the apron widens toward the curb, measure that trapezoid and add it. An average width of 16 feet over a 10-foot flare is 160 square feet. At 3 inches that extra piece is 160 times 0.25 times 145 divided by 2000, about 2.9 tons, on top of the 10.9. Skipping it is how a neat 600-square-foot order comes up short at the street. Edges placed by hand can also run thicker than the formula. Mention that when you call the plant. Still label 7.3 and 10.9 as planning estimates for the rectangle alone. The plant ticket is the real weight of whatever shape you actually paved. Do not compare a flared job's ticket to the rectangle and call the difference a mistake before you add the flare area.

Check a quote against these two numbers

A contractor who says about 7 tons for this driveway is talking about a 2-inch plan, give or take waste. A contractor who says about 11 tons is talking about 3 inches. If the quote says 15 tons for a true 600-square-foot rectangle, ask what thickness and what extra area they measured. The difference should be explainable as thickness, flare, or waste, not as a mystery density. This page does not set a price. It gives you the two planning weights so the conversation has a unit. After the job, divide the ticket tons by the area and compare with the formula. If you bought 10.9 tons and paved 600 square feet, you bought the 3-inch plan. If the mat looks much thinner, ask where the thickness went before the crew leaves.

A practical sequence

Confirm the paved area is 600 square feet, such as 20 by 30.
Use about 7.3 tons at 2 inches or about 10.9 tons at 3 inches.
Add any flare as its own area before you order.
Call both figures planning estimates and match them to the plant ticket.

The mistake to skip

Ordering 10.9 tons and then forgetting the flare that sits outside the 20 by 30.

Questions people ask

Which thickness should a 20 by 30 driveway use?

The math gives both so you can check a quote. About 7.3 tons is 2 inches and about 10.9 tons is 3 inches, at 145 pounds per cubic foot. Cars on a sound base are often planned around a residential thickness in that range. Trucks may need more. Pick the thickness with the contractor, then use the matching tons. The plant ticket is the real weight.

How do I scale this to 1,200 square feet?

Double it only if the thickness stays the same and the extra area is real. At 3 inches, 1,200 square feet is about 21.8 tons, which is twice 10.9. At 2 inches it is about 14.5 tons, twice 7.3. Do not double the tons and also add a waste factor you already included. Measure the second area. The ticket still outweighs the sketch.

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