A leading producer

Round Stone

We are North Jersey’s leading aggregate producer and supplier of Delaware River Stone. In addition to construction and roofing aggregates, Harmony is a widely recognized source of landscape material, selling both to wholesale and retail accounts since 1952.

We carry Delaware River Round Landscape Stone in all the popular sizes from 1/4 inch, 3/8 inch 3/4 inch, 1 inch, 1-1/2 inch, 2 x 5 inch, 4 x 8 inch, 6 x 20 inch, cobblestones and various sizes of boulders.
Our Delaware River Stone is neutral in color and blends into any landscape architect’s color scheme with gentle color tones that make a subtle statement. This stone has been used up and down the East Coast and is widely used on many sites including fast food restaurants, industrial parks, developments, golf courses and municipal work. Our quality product is even found in such places as Liberty Island, near the Statue of Liberty, The Vietnam Memorial in New Jersey and on corporate sites such as Johnson & Johnson’s Somerville, New Jersey facility.

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What we carry

Harmony Sand & Gravel supplies the following specialty landscape aggregate: