comparisons · 2 min read
Drain Rock vs Pea Gravel
Both are small and rounded. Only one drains.
Why pea gravel doesn't drain
Pea gravel is 1/4"–3/8" — small enough to pack tight and shed water sideways, not down. Drain rock is 3/4" and creates the voids water actually flows through.
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4 min read
What Is Drain Rock?
Drain rock is washed aggregate sized to move water freely without carrying fines with it.
4 min read
Drain Rock Guide
The complete guide to washed drain rock — sizes, where to use it, and how to size a load.
6 min read
French Drain Guide
Everything you need to design, size, and install a residential French drain.
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