What Size Is 21Aa

21AA Limestone is 1-1/2″ max. in size (down to powder). This stone is often used as a top dressing for driveways and other landscaping projects, including brick pavers.

What does 21AA mean?

21 AA Crushed Asphalt contains oils that cause it to heat faster and bind together, preventing dust. It can be successfully used for roads, driveways, or walkways. 21AA CRUSHED CONCRETE. 21AA Crushed Concrete is great for drainage which makes it the right solution in wet areas.

How much is 21AA a yard?

STONE:1/2 Yard5+ YardsPea Gravel$26.50$39.50Limestone – 21AA$25.00$37.0060/40 – Auburn Hills Yard Only$26.50$40.50Cobblestone 1″ to 2″ – Auburn Hills Yard Only$34.00$45.00