America's Leader in Lightweight


Trinity Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, with production facilities in California, Colorado, Texas, Louisiana, Alabama and Arkansas.

Trinity Lightweight is uniquely situated to supply expanded shale and clay lightweight aggregate to markets in most of the 48 contiguous states. With plants located with access to America's extensive inland river system, as well as the nation's railroad network, Trinity Lightweight is able to serve the construction industry from California to Virginia, and from Minnesota to Florida, and most points in between.

Trinity Lightweight offers the ability to provide a variety of grading options to suit your particular needs. Use this versatility to specify the optimum material for any given application. As with ordinary aggregates, the engineering properties of expanded shale and clay lightweight aggregate vary depending on aggregate source and grading.

Be sure to consult Trinity Lightweight during the conceptual design phase, for precise information on the aggregate properties needed for your project. Whether you need a specific grading, bulk density (unit weight), in-place compacted density, angle of internal friction, thermal conductivity, or other property for a geotechnical fill project, or low density, high strength concrete for your building or parking structure, Trinity Lightweight can help.

Trinity Industries, Inc. is a diversified industrial company that owns market-leading businesses providing products and services to the energy, transportation, chemical, and construction sectors.


14885 South Interstate 45
Streetman, Texas 75859



17410 E Lockwood Valley Rd
Frazier Park, CA 93225



11728 Highway 93
Boulder, CO 80303



P.O. Box Drawer V
Livingston, AL 35470



12652 Airline Hwy
Erwinville, LA 70729



3719 Mounds Rd
Proctor, AR 72376