• 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.

Throughout our 30 years of manufacturing terra cotta, Boston Valley Terra Cotta 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 amassed a library of over 600 extrusion dies. The hardened steel dies are the property of Boston Valley Terra Cotta and can, therefore, be utilized by architects for new masonry construction. Our library includes multiple styles for ashlars, quoins, copings, sills, and cornices among other architectural block styles, so whether you need an accent band to compliment a brick structure, or you are designing a complete terra cotta façade, Boston Valley has an extrusion die to fit your needs.


Formed of clays and other raw materials mined from the earth which are then fired to high temperatures forming permanent bonds, terra cotta has the following properties:

  • Non-Combustible
  • Resistant to UV fade
  • Does not off-gas
  • Inherent color range
  • High compressive strength
  • Plasticity to be formed into various shapes and profiles
  • Ability to withstand severe climates and with proper installation and maintenance can be expected to serve a building for hundreds of years

At our manufacturing facility in Orchard Park, New York, clays from the largest mining operations in North America are blended according to specific recipes that have been engineered to meet industry standards in tolerance and performance criteria. Boston Valley works with industry professionals as we refine our product and our manufacturing methods to ensure that we are delivering the highest quality terra cotta to our clients.


Architectural terra cotta is a natural material fired to 2100 degrees Fahrenheit over a number of days. The batching, souring, forming, drying, firing, glazing, sizing, fitting and quality inspection processes take time. Technological advances and ceramic engineering continually raise the level of quality and performance; however, they cannot change all of the time requirements of this ancient material. Lead times vary from project to project.