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

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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

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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

pavers patio stones retaining wall blocks      

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

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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

pavers patio stones retaining wall blocks      

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

pavers patio stones retaining wall blocks      

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

The Reference Library

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

Product Brochures


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.

~ 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.