• A detail shot of 520 West Chelsea in New York City, a unique profile extruded and RAM pressed terra cotta masonry facade in a black reflective glaze. Design by Selldorf Architects.


Even after thousands of years of building and the introduction of modern techniques and new materials, terra cotta continues to be the cladding material of choice for many designers. Few if any materials surpass terra cotta in its longevity, sustainability, malleability, UV resistance, ability to withstand severe climates, and finally the possibilities in texture and finish that it can offer.

With over 30 years of manufacturing terra cotta, Boston Valley has taken advantage of various technological advances and introduced these into our manufacturing process. With the inclusion of extrusion as one of our forming methods, Boston Valley has produced over 600 custom extrusion dies featuring multiple styles for ashlars, quoins, copings, sills and cornices among other architectural block styles. Whether you need an accent band to compliment a brick structure, or you are designing a complete terra cotta façade, Boston Valley can create an extrusion die to fit your needs.

Technical Data / Product Testing

Standard Test Method for Modulus of Rupture of Dimensional Stone

Standard Specification for Ceramic Glazed Structural Clay Facing Tile, Facing Brick and Solid Masonry Units

Standard Test Method for Flexural Strength of Dimensional Stone

ASTM C1167-03 & ASTM C67
Standard Specification for Clay Roof Tiles (with modifications as required to ASTM C 67 – Standard Test Method for Sampling and Testing Brick and Structural Clay Tiles)