3/4 Inch Drain Rock / #3B Fine (Size #67) for Driveways and Drainage

Known by several names, including 3/4 inch clean, 3/4 inch drain rock, and #3B Fine, this material is crushed stone ranging from 7/8 inch down to 3/16 inch. It hits a useful middle ground: large enough to drain well and stay put, small enough to give a clean, even, finished surface. That dual quality is why it is one of the more versatile drainage and landscaping rocks we carry.

It is a favorite for driveways and parking areas, where it provides a firm, free-draining surface that resists rutting, and it performs reliably on ground that holds mud or sees regular run-off. Because the size sits between coarse drain rock and fine chips, it is comfortable to walk and drive on while still moving water, which makes it as suitable for a functional drainage layer as for a visible landscaped area.

If you are choosing between drain rocks, think of #3B Fine as the all-purpose option. It is finer and tidier than 1 1/2 inch and 2 1/2 inch drain rock, yet coarser and more stable underfoot than pea gravel, so it covers a lot of common jobs without going to either extreme. On the Big Island, where managing run-off is a constant, it is a practical, good-looking choice.

Common uses:

• Driveways and parking areas
• Drainage and run-off control
• Landscaping and decorative ground cover
• Mud-prone areas that need a firm surface
• Pathways that still need to drain

Good to know:

• Crushed rock from 7/8 inch down to 3/16 inch
• Drains freely with no fines to clog the layer
• Sits between coarse drain rock and pea gravel
• Works as both a functional and a decorative surface

In stock now. Request a quote for 3/4 Inch Drain Rock delivery on the Big Island.