Structural Block Products

Structural block can be used to create beautiful fences in landscape projects.

However, their primary use is in masonry walls for buildings or enclosures.

We have a large selection of structural block sizes manufactured with either lightweight or concrete aggregate.

We stock 4", 6", 8", 10", 12" structural block with the "fittings" to go with them. Our 8" lightweight also comes in a "split face".

Our stock color is gray, however, we can run custom colors if the job is large enough.

Please contact us with any questions regarding our structural block.













Solar Ballast Block

St. Vrain Block is excited to introduce our Solar Ballast Block products. Solar panels in zero-penetration, flat-roof applications require ballast weight to secure the panel to the roof.

We manufacture several sizes and weights of products that are specifically designed for the strict quality requirements of the solar panel industry.

solar ballast block

High compressive strength and density combined with low absorption are important to the long-term durability of the concrete.

Lower-quality concrete will deteriorate in under a decade due to the aggressive freeze/thaw environment that the roofs and the ballasts create.

solar panels block

Our products surpass the requirements of ASTM C1491 for compressive strength, density and absorption. They also exceed the ASTM C1262 requirements for freeze/thaw durability.

We are the preferred supplier for many solar panel installers and manufacturers. Please contact us today to learn more about the products we are making for the solar panel industry.


We have a full line of structural block in both concrete and lightweight. We stock gray 4", 6", 8", 10", 12" block and the fitting to match. We will run special order jobs in any color if the order is large enough.


Solid Block

Available in the following colors:

Gray
shape size (w" x h" x l") lbs./ea #/pallet #/sq. ft.
Rectangle 4" x 8" x 16" 33 90 1.13

Concrete Block

Available in the following colors:

Gray
shape size (w" x h" x l") lbs./ea #/pallet #/sq. ft.
Rectangle 8" x 8" x 16" 40 75 1.13

Concrete ½ Block

Available in the following colors:

Gray
shape size (w" x h" x d") lbs./ea #/pallet #/sq. ft.
Cube 8" x 8" x 8" 22 150 2.26

Please contact us with any special order requests or questions.