Interactive planning tool
Driveway Material Selector
Compare two or three material approaches based on soil, drainage, traffic, grade and existing base.
Method and assumptions
Recommendations are decision paths, not product specifications. The tool weighs separation/base correction, dense-graded surface aggregate and drainage-first work. Confirm local gradations and availability with suppliers.
Example and limitations
Use measured dimensions and replace defaults with supplier or local information. Density, material names, truck payloads, prices and requirements vary. Round ordering quantities only after confirming how the supplier sells and delivers material.
Sources and related guidance
Methods follow basic volume arithmetic and general unpaved-road principles. Review FHWA maintenance resources, local road-authority requirements and manufacturer data. See our sources methodology, drainage guide and printable project brief.