How is hot mix asphalt calculated?
Area times compacted depth gives volume; compacted density (about 145 lb/ft³) gives tons to order. Add a little waste and schedule trucks so material arrives hot.
A compacted aggregate base matters as much as the asphalt — without it you get ruts and cracks.
How do you maintain asphalt?
Seal cracks as they appear, sealcoat every 2–4 years and patch potholes before they grow. Water through cracks weakens the base and speeds failure.
The sealcoat and crack filler calculators give gallons, tubes and pails.
Asphalt, concrete or pavers?
Asphalt is cheaper and faster; concrete lasts longer with less upkeep; pavers can be repaired piece by piece and look more decorative. It depends on traffic, budget and style.
For driveways, 2–3 in of asphalt over a good base is usually enough.