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1A STONE

Reference only

#1A Stone (1/4″ To 3/4″, High Friction)

#1A stone in a 1/4" to 3/4" size range with high friction properties is a crushed aggregate commonly produced from durable natural rock. The high friction attribute means the stone surfaces are angular and rough, enhancing grip and stability when used in construction applications.

Also called

If a contractor or a spec sheet handed you one of these names, this is the rock they mean.

What people call it

3/4" clean stone3/4 minusdriveway stone

Yard and spec names

#1ASTM D448

Ask for #1a stone and we'll know what you want. If you have a spec number, give us that instead and we'll match it.

What people use it for

  • Driveway surfacing
  • Walkway base
  • Drainage systems
  • Concrete aggregate
  • Railroad ballast

#1A Stone next to what it gets confused with

RockSizeShapeWhere it winsCan we deliver it
#1A Stone (1/4″ To 3/4″, High Friction)1/4" To 3/4"AngularDriveway surfacingReference only
#1A Stone (1/4″ To 3/4″, Dry)1/4" To 3/4"AngularReference only
#1A Stone (1/4″ To 3/4″, Limestone)1/4" To 3/4"AngularReference only

Questions people ask

What is #1A Stone used for?+
#1A Stone is commonly used for Driveway surfacing, Walkway base, Drainage systems, Concrete aggregate, Railroad ballast.
What size is #1A Stone?+
#1A Stone typically ranges in size from 1/4" To 3/4".
Where can I get #1A Stone?+
You can order #1A Stone for delivery from Hello Gravel. We deliver bulk aggregate materials directly to your site with transparent pricing and no hidden fees.