How to use this calculator
- Enter Length in ft.
- Enter Width in ft.
- Enter Depth in in.
- Enter Price per ton in $.
- Press Calculate. The highlighted row is your order quantity; the note beneath it translates the number into real-world terms.
Formula & constants
Decomposed granite places at about 105 lb/ft³. Paths use 3 in compacted in two lifts; stabilized DG (with binder) sheds water better and resists rutting. Every default in the fields above is editable — when your supplier’s spec sheet lists a different density, coverage rate or price, enter that number instead. The waste and compaction allowances follow common trade practice; see our methodology page for the derivation of each formula and the standards it references.
One ton covers ~73 sq ft at 3 in deep.
Where this fits in the project
Aggregate quantities feed the layers above them: after excavation, base material is placed in compacted lifts before asphalt or concrete goes down. Convert your tonnage to trips with the truckload calculator before scheduling delivery.
How this connects to your project
No quantity stands alone — each material in the chain depends on the ones around it. These are the planning steps that pair with the decomposed granite calculator:
- Gravel Calculator — DG is a finer alternative to gravel for pathways.
- Sand Calculator — DG has sand-like compaction properties.
- Paver Base Calculator — DG can serve as a pathway base material.
- Paver Calculator — DG paths are a permeable alternative to pavers.
- Crushed Stone Calculator — DG is finer and more compactable than crushed stone.
Frequently asked questions
Stabilized or natural DG?
Stabilized (polymer binder) for paths and patios — firmer, less erosion. Natural loose DG suits mulched beds only.
How thick for a DG pathway?
3 in compacted, installed in two watered-and-plate-compacted lifts over weed fabric.
Last verified: — prices reflect current national averages. See our methodology.
Estimates are for planning. Material densities, coverage rates and prices vary by region and supplier — confirm final quantities before ordering, and check local code where structural or electrical work is involved.