Road Building Products Besides road building, these products are also used for building pads, road maintenance, and parking pads.Please request a quote or call to schedule a delivery now. Pit Run Gravel Pit Run gravel is unprocessed material that contains all sizes of rock. This material is used as a base for roads, building pads, and backfilling. Crushed 1-1/2” Minus This gravel is a blend of rock, sand and dirt crushed on a 1-1/2" screen. Typically used for roads, building pads, and filling potholes, this products compacts excellent. Crushed D-1 Gravel This gravel is a blend of rock, sand and dirt crushed on a 1" screen. D-1 is easier to shovel than 1-1/2" Minus and can be used for all the same applications.