Bulk Aggregates for Patios in Inverness, CA

Order gravel and aggregate delivery in Inverness, CA the easy way: online, by the ton or by the yard. California Rock Supply delivers bulk Class 2 base, stone, sand and soil across Marin County. Pick your material, size the load, choose a delivery date.

Start with Class 2 base. It is the standard California base material, the one contractors here call Class II base rock. It goes under pavers, slabs and Stone Screenings paths. Soils change fast in Inverness, so the base does the heavy lifting.

Ground and Conditions in Inverness

A thin base fails first. Pavers rock, joints open, and slabs crack at the corners. That happens because the bedding layer was asked to carry load it cannot carry.

Coast and Coast Ranges ground makes this worse. Sandy dune and beach soils sit along parts of the shoreline. Heavy clay soils that crack when dry and swell when wet are extensive in the Coast Range valleys and hills. Clay moves under a patio. Sand does not.

Water decides the rest. Most rain falls from late fall to spring, much of it in a few large winter storms and atmospheric rivers. It soaks into sandy ground quickly but sits on or runs off clay soils and slopes. Trapped water under a patio softens the subgrade and pushes the surface up.

The fix is a compacted base and a drainage layer, not a thicker bedding course. Build the subgrade, compact the Class 2 base in lifts, then bed the pavers. Add clean drain rock where water collects.

Time the work around the weather. The dry season from late spring into fall is the main window for base, driveway and paver work. Summer fog near the shore is fine. Winter rain and saturated clay hold jobs up.

Materials for Inverness Projects

Bedding and base do different jobs. Bedding levels the surface. Base carries the load. Choose each one for its job.

• Class 2 Base: the compacted base under pavers, slabs and Stone Screenings paths. Also called Class II base rock or Class 2 aggregate base, specified by Caltrans as Class 2 aggregate base.
• Stone Screenings: DG for paths, patios and low-water landscape ground cover, laid over a compacted base. It packs firm and fine.
• Washed Sand: concrete sand for leveling, bedding and base under slabs. Use it to set a level bed before pavers go down.
• Mason Sand: brick and block work, paver joints and play sand. Fine and consistent for tight joints.
• Drain Rock: French drains, drywells, downspout runs and drainage behind retaining walls. Clean stone, no fines, so water moves.

Recycled base rock works the same way under drives, patios and slabs. So does crushed miscellaneous base, which some California suppliers call CMB. Both are Class 2 base made from Road Base or asphalt, and Caltrans allows processed reclaimed asphalt and concrete in aggregate base.

For a driveway surface, use Driveway Gravel over a compacted base. For walkways, Walkway Gravel gives a finer, walkable surface. Rip rap, also called rock slope protection, armors slopes and creek banks against winter storm runoff.

Delivery to Inverness and the Surrounding Area

Order online. Choose tons or yards, whichever you measured in. Bulk material moves by weight and by volume, and the two do not match one for one.

Not sure which to pick? Use the calculator. Enter your project and it sizes the load for you. Then pick a delivery date at checkout and a dump truck brings the material to your site.

Plan the drop. A dump truck needs room to spread or dump, and a clear path to the pad. Tell us where the pile goes and keep the route open. Delivery covers Inverness and the rest of Marin County, including San Rafael, Novato, Mill Valley, Larkspur and San Anselmo.

Size Your Load and Order

Pick your material, then let the calculator turn your area and depth into tons or yards. It takes a minute and keeps the guesswork out of the order. California Rock Supply delivers bulk aggregate across Inverness and Marin County. Choose your date at checkout and place the order.