Structural block can be used to create beautiful structures in any landscaping project. From planter boxes, fences, firepits, and many more. 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", 12" structural blocks in full sizes, half sizes, and knockouts.

Important consideration for your projects:
If there is any moisture that will be consistently touching the block, it is recommended to use Concrete and not Lightweight variety of structural block. This includes foundations, planter boxes, etc.

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.

Structural Block Products

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

Solid Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet Thick Slab Concrete 7-5/8" width 2-1/4" height 15-5/8" length 20 lbs ea ----------- 2750 lbs per pallet 135 1.13 4" Solid Concrete 3-5/8" width 3-5/8" height 15-5/8" length 33 lbs ea ----------- 3000 lbs per pallet 90 1.13 Thick Slab Lightweight 7-5/8" width 2-1/4" height 15-5/8" length 14 lbs ea ----------- 2900 lbs per pallet 180 1.13 4" Solid Lightweight 7-5/8" width 3-5/8" height 15-5/8" length 27 lbs ea ----------- 2400 lbs per pallet 90 1.13

      

Concrete Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet 8" Concrete 7-5/8" Width 7-5/8" Height 15-5/8" Length 34 lbs ea ----------- 2600 lbs per pallet 75 1.13

      

Concrete Half Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet 8" Concrete Half 7-5/8" width 7-5/8" height 7-5/8" length 23 lbs ea ----------- 3470 lbs per pallet 150 2.26

      

Lightweight Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet 4" Lightweight 3-5/8" width 7-5/8" height 15-5/8" length 20 lbs ea ----------- 3050 lbs per pallet 150 1.13 6" Lightweight 5-5/8" width 7-5/8" height 15-5/8" length 24 lbs ea ----------- 2150 lbs per pallet 90 1.13 8" Lightweight 5-5/8" width 7-5/8" height 15-5/8" length 29 lbs ea ----------- 2600 lbs per pallet 90 1.13 12" Lightweight 11-5/8" width 7-5/8" height 15-5/8" length 46 lbs ea ----------- 2750 lbs per pallet 60 1.13

      

Lightweight Knock-Out Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet 6" Lwt K/O 5-5/8" width 7-5/8" height 15-5/8" length 24 lbs ea ----------- 2550 lbs per pallet 100 1.13 8" Lwt K/O 7-5/8" width 7-5/8" height 15-5/8" length 28 lbs ea ----------- 2550 lbs per pallet 90 1.13 12" Lwt K/O 11-5/8" width 7-5/8" height 15-5/8" length 41 lbs ea ----------- 2450 lbs per pallet 60 1.13

      

Lightweight Half Block
	Available in the following colors: Gray Call ahead to verify stock of size needed
Shape Dimensions (nominal) Weight # per pallet Pieces per square feet 4" Lwt Half 3-5/8" width 7-5/8" height 7-5/8" length 10 lbs ea ----------- 3050 lbs per pallet 300 2.26 6" Lwt Half 5-5/8" width 7-5/8" height 7-5/8" length 14 lbs ea ----------- 2570 lbs per pallet 180 2.26 8" Lwt Half 7-5/8" width 7-5/8" height 7-5/8" length 18 lbs ea ----------- 3300 lbs per pallet 150 2.26 12" Lwt Half 11-5/8" width 7-5/8" height 7-5/8" length 25 lbs ea ----------- 3050 lbs per pallet 120 2.26

      

Please Contact us for more info and pricing
about our Structural products.

The Reference Library

Use the free Adobe Reader to view and print the PDF files.

Below are some of the most commonly requested documents, brochures and information. Let us know if you have a special request!

Product Brochures

• Cuesta Brochure


• Edging Brochure


• Patio Stones Brochure


• Paving Stones Brochure


• Quarry Stone Brochure


• Pyzique Brochure 1


• Pyzique Brochure 2


• Solar Ballast Block Brochure

Quantity Estimates

Each project has unique characteristics or challenges. Using your measurements, we will provide an estimate of product quantity necessary for your project. Call us at 303-833-4144 or contact us online with your request.

Installation Tips

We can recommend various Landscape Professionals or, if you are the 'Do-It-Yourself' type, we provide these helpful installation instructions.

• Retaining Wall Installation Tips


• Paving Stone Patio Installation

~ more install tips coming soon

Glossary of Terms

Every industry has quirky terms that can be confusing especially if the product names sound alike, but are actually not comparable at all in quality or intended use. Contact us if you have any questions.

Glossary of Terms

ASTM Certifications

The ASTM International Standards Certifications awarded to St. Vrain Block are held in very high regard. Quality has been the foundation of our reputation since 1946. Please review our ASTM Certifications page for more information.