Gravel is priced by area times depth, and won or lost on the two things the customer cannot see from the road: what is under the rock, and what shape the surface holds. Here is the method.
Area times a depth rate
Measure the driveway, then apply a rate per square foot at the quoted depth. A 12 foot wide, 100 foot long driveway is 1,200 square feet. At the example rate of $1.25 per square foot for a 4 inch build, that is $1,500. Quote the same driveway at 6 inches, example rate $1.75, and it is $2,100. Depth is not an upsell trick; heavier vehicles and softer ground genuinely need more material, so carry each depth as its own rate rather than one blended number.
Stripping sod or excavating first is its own line, at an example add-on of $0.50 per square foot. Never fold digging into the rock rate, because not every job needs it.
The fabric upsell that sells itself
Geotextile fabric between soil and stone is the easiest honest upsell in the trade. On soft ground, rock without fabric slowly presses into the mud, and in a couple of seasons the customer is buying gravel again to replace what sank. At the example rate of $0.35 per square foot, fabric on that 1,200 square foot driveway is a $420 line that protects a $1,500 to $2,100 job. Explain it in exactly those terms and most customers take it.
Crown and compaction are the craft
Anyone with a truck can dump rock. The difference between a driveway and a long pile is shape and density: a crowned surface that sheds water to the sides instead of ponding, and material compacted in lifts so it stays where the grader put it. Water is what destroys gravel drives, so the crown is the real product. Put it in your quote language, because it is why your number beats the guy who spreads and leaves.
Regrading is the repeat revenue
Every gravel driveway needs maintenance eventually, and the contractor who built it should be the one maintaining it. At the example regrade rate of $0.75 per square foot, refreshing that 1,200 square foot driveway is a $900 visit, no material hauling, one machine, done fast. Offer a standing regrade plan when you close the install and the job keeps paying. Small regrade visits are also where a minimum job charge earns its keep.
Check your math on the gravel driveway cost calculator, and when a customer is weighing paving instead, gravel vs a concrete driveway covers it. PriceDesk runs this calculator with your own rates, on your phone, quote in about ten seconds. Free for 14 days.