Plaisted Sands are Washed and Screened to meet a Variety of Applications. From Masonry Sand to Dry Sand to any Sand Mix, we've got you covered. Join Our Team Contact Us. CONTRACTORS. Aggregates Road Base; Delivery Options; Engineered Soils; Equestrian Arena Soil Mixes; MASONRY SUPPLIES; Peat, Inc. Retaining Wall Systems and Hardscapes; Rock and .