ROAD BASE CALCULATOR:
YARDS, TONS & TRUCK LOADS
Put in the length and width in feet and the depth in inches. The calculator turns that into cubic yards, then tons, then the number of Blue Sands truck loads at 14 to 16 tons a load, with a delivered price. It opens on 3 inch crusher run, the coarse base that goes down first on a new drive or pad. A full load of 3 inch crusher run is $425 delivered in Tulsa County, sales tax extra. Outside Tulsa County, add $50 a load.
SIZE YOUR BASE ORDER
Need a spec base instead? ODOT Type A and TBSC Type E are in the same menu. The estimate carries straight into a delivery request.
Planning the top layer too? Run it through the gravel calculator, or compare base rock on the gravel & crushed rock page.
HOW TO MEASURE
Three numbers and a tape measure. Nothing needs to be exact to the inch.
- Length and width, in feet. Run a tape down the long side and across the short side. If the area is an L or an odd shape, break it into rectangles, run each one through the calculator, and add them up.
- Depth, in inches. Base goes on thicker than a top layer. Measure from the ground as it is today up to where the base should finish, before any finer rock goes on top.
- Round up to whole loads. The calculator rounds the load count up to full trucks. If you land between sizes, order a little extra. Running short means waiting on a second delivery.
Typical depths, the same ones on the calculator buttons: 2 inches to top up a driveway that already has rock, 3 inches for beds, 4 inches for a new driveway, and 6 inches for a building pad.
The math, if you want to check it by hand: length times width in feet, times depth in inches divided by 12, gives cubic feet. Divide by 27 for cubic yards. Multiply cubic yards by about 1.36 for tons of road base. A full load of 14 to 16 tons works out to roughly 10 to 12 cubic yards.
ROAD BASE QUESTIONS
How many cubic yards of road base are in a load?
About 10 to 12. A full truck carries 14 to 16 tons, and the calculator converts at roughly 1.36 tons of base rock per cubic yard.
How many tons of road base do I need?
Cubic yards times about 1.36. A 12 by 60 foot drive at 6 inches deep is about 13.3 cubic yards, or a little over 18 tons. That is more than one load, so plan on two.
How thick should road base be?
For a new drive over dirt, 4 to 6 inches of base is common. A building pad or soft, rutted ground usually wants the full 6 inches. A finer gravel often goes on top once the base is down.
How accurate is the calculator?
It gets you close, and it is still an estimate. Ground is rarely flat, base rock settles into soft spots, and every load crosses a scale, so the final tonnage and price come off the scale ticket and are confirmed on your quote. Prices include delivery; sales tax is extra.
GET BASE ROCK ON THE GROUND
Send the numbers from the calculator with your quote request, or call them in. We confirm the price and the day.
All base and driveway rock with prices: gravel & crushed rock. Other calculators: gravel · sand · asphalt millings · fill dirt · topsoil. Every material and price: materials & prices.