Tri-State Stone® & Building Supply, Inc. - Stone Materials

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Carderock® Quarries; stone veneer.

This section is based on the products of Carderock® Quarries, trading as Tri-State Stone & Building Supply, Inc., which is located at:

P. O. Box 34300
Bethesda, MD 20827
Quarry and Yard are located at:
8200 Seven Locks Rd.
Bethesda, MD 20817
Phone: 301-365-2100
Fax: 301-365-5524
Email: wprunka@hotmail.com
Web: http://www.carderock.com
[ Click Here ] for additional information.

Carderock® Quarries, trading as Tri-State Stone & Building Supply, Inc. and Ben Porto & Son, Ltd., has been family owned and operated since its inception in 1926. The stone is a mica-schist quartzite. The vibrant blues, browns, greys, and greens create an aesthetically pleasing mixture of colors for various types of stone projects. The quartzite gives the stone durability while the mica-schist establishes its unique horizontal and vertical cleavage, making the stone easy to work. The colors, durability, and ease of use have made Carderock® Stone a favorite of stone masons, architects, designers, and homeowners for generations.

Carderock® Veneer Stone - for use in walls with setting beds of 4" to 6", such as house fronts, fireplaces, chimneys, or any job requiring stone facing. The stone is somewhat irregular in shape, many with reasonably square edges for corners, 6" to 12" in height, and lengths up to 60". Coverage of 30 to 35 square feet per ton can be expected for rubble style applications. Also available in a snapped and premium snapped grade. These have been run through a guillotine to reduce the amount of field trimming and shaping required. Coverage for the snapped is 35 to 40 square feet per ton and 40 to 45 square feet per ton for the premium snapped.

Carderock® Garden Wall Stone - irregular in shape and somewhat flat, this grade of stone is ideal for dry or semi-dry stack retaining walls up to 24" in height, such as those defining a raised garden bed. With one reasonably good face, 8" to 12" deep, 3" to 6" in height, up to 18" in length, coverage of 18 to 20 square feet per ton can be expected.

Carderock® Drywall Stone - somewhat flat and irregular in shape, many stones will have one good face. Suitable for dry and semi-dry retaining walls, the stone averages 8" to 14" in depth, 4" to 10" in thickness, and up to 24" in length. Approximate coverage is 12 to 15 square feet per ton.

Carderock® Flagstone - suitable for use as stepping stones or coping. Broad and relatively flat, from 2" to 4" in thickness and 1.5 to 5 square feet in area. Coverage of 45 to 50 square feet per ton.

Carderock® Landscape Boulders - of varying shape and dimension, from 300 pounds to 5000 pounds in weight.

CarderocksTM Tumbled Stone - All the beauty and distinctive color range of Carderock Stone. Tumbled smooth as if it had been in a riverbed for eons. Perfect for use as a ground cover, in water features and dry stream bed applications.
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