Thermal Bluestone is a unique sandstone quarried in the northeast counties of Pennsylvania and the southern tier of New York state. Each piece is dimensionally cut to size and a very high temperature flame is applied to the surface to roughen the texture. 1.5" x 12" x 12" Width: 12" Length: 12" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 144 SF/144 Pcs Per Pallet 1.5" x 12" x 36" Width: 12" Length: 36" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 216 SF/72 Pcs Per Pallet 1.5" x 18" x 18" Width: 18" Length: 18" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 144 SF/66 Pcs Per Pallet 1.5" x 18" x 30" Width: 18" Length: 30" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 180 SF/48 Pcs Per Pallet 1.5" x 18" x 36" Width: 18" Length: 36" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 125 SF/30 Pcs Per Pallet 1.5" x 24" x 24" Width: 24" Length: 24" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 184 SF/46 Pcs Per Pallet 1.5" x 24" x 30" Width: 24" Length: 30" Thickness: 1-1/2", Gauged Joint: 1/2" Sawn 4 Sides 120 SF/24 Pcs Per Pallet