USI Blue Stone (Overview)
USI Blue Stone is of the highest quality and widely popular throughout the east coast. It is sawn and flamed to provide an even non-slip surface, making it a great choice for pool decks, patios, and walkways. Its consistent coloring of cool grey with a subtle blue hue is rich and beautiful.
USI Blue Stone - Sills
Variation in Color: Low
Available Sizes (in)*: 3 x 36 | 3 x 48 | 3 x 60
Available Thickness: 2″ Sawn
Edges: 3 Sides Sawn, 1 Long Side Rockfaced OR 1 Long Side Flamed
Available Finishes: Flamed
Geology: Sandstone
*Other sizes upon request
USI Blue Stone - Wall Caps
Variation in Color: low
Available Sizes (in)*: 12×24 | 14×24 | 16×24
Available Thickness: 2″ Sawn
Edges: 2 Sides Sawn, 2 Long Sides Rockfaced or 2 Sides Sawn, 2 Long Sides Flamed
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
*Other sizes upon request
USI Blue Stone - Pier Caps
Variation in Color: Medium
Available Sizes
Available Thickness: 2″ & 3″ Sawn
Edges: 4 Sides Rockfaced
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
USI Blue Stone - Slabs
Variation in Color: Low
Available Sizes (in)*: 36×72 | 36×96
Available Thickness: 2″, 3″, & 4″ Sawn
Edges: 4 Sides Flamed
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
*Other sizes upon request
USI Blue Stone - Steps
Variation in Color: Low
Available Sizes (in)*: 16×36 | 16×48 | 16×60 | 16×72 | 16×84 | 16×96
Available Thickness: 6″ Sawn
Edges: Sawn & 4 Sides Flamed | Sawn & 1 Side Flamed & 3 Sides Rockfaced
Available Finishes: Flamed
Geology: Sandstone
Traffic: Heavy
*Other sizes upon request
USI Blue Stone - Treads
Variation in Color: Low
Available Sizes
Available Thickness: 2″ Sawn
Edges: 3 Sides Sawn, 1 Long Side Flamed
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
USI Blue Stone - Flagstone
Variation in Color: Low
Available Sizes
Available Thickness: 1″ Sawn
Edges: Sawn Cut
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
*Other sizes upon request
USI Blue Stone - Flagstone
Variation in Color: Low
Available Sizes (in)*: 12×24 | 14×72
Available Thickness: 2″ Sawn
Edges: 3 Sides Sawn, 1 Long Side Bullnosed
Available Finishes: Flamed
Geology: Sandstone
Traffic: Medium
*Other sizes upon request
The USI Dealer Advantage
Competitive Wholesale Pricing
Dealer-only rates that protect your margins
Reliable Inventory
We stock deep so you can fulfill orders without delays or backorders.
Consistent Product Quality
Our thickness consistency standard means fewer surprises and smoother installations.
Flexible Ordering
Order what you need, when you need it. No unreasonable minimums for active accounts.
Regional Coverage
Distribution across the Southeast and Northeast puts product closer to your jobs.
Dedicated Account Support
Real people who know your account and answer when you call.
Trusted by Dealers Across the Country
“USI embodies everything we want in a supplier, responsive, reactive to our needs, and Anthony has worked hard to build a great relationship. This is the kind of company we want to do business with.” — Jeff Griffith, Welsh Stone Supply





