Watershed Block

Eco-friendly alternatives to masonry products that include Portland cement and limestone are few and far between. Among them is a new masonry unit from Watershed Materials made of fused soil and rock fragments, including quartz, feldspar, clay, and other minerals. The hollow-celled blocks each weigh approximately 30 lbs.—up to 15% more than standard concrete blocks but with half the cement content. The variety of each one’s contents results in color variation emulating natural rock forms. The blocks measure 16” long, 8” tall, and 4”, 6”, or 8” deep.

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