Lightweight structural CMU ideal for small walls, partitions, and construction projects where reduced block weight is preferred.
OC Block 6x8x16
View Material Specs
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Boulder Size Guide
Small
1–2 ft • 200–800 lbs
Medium
2–3 ft • 800–2,000 lbs
Large
3–5 ft • 2–6 tons
XL
5+ ft • 6+ tons
Block Type
Material Calculator
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Estimate material, then add that amount to your quote.
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GALLONS
Coverage Estimate
Actual coverage varies by surface texture, porosity, product type, and application method. This is a planning estimate only.
YARDS
PIECES
Coping Estimate
Estimate pieces from total linear feet. Final quantities may vary based on cuts, curves, corners, layout, and installation method.
Boulder Ordering
Boulders are typically selected by size, weight, and placement rather than square-foot coverage. Add your estimated quantity to the quote cart and our team can help confirm the right amount for your project.
Concrete & Mortar Estimate
Estimates bagged material for slab pours, fence posts, and CMU wall mortar. Coverage is based on approximately 0.675 cubic feet per 90 lb bag for concrete applications. Mortar estimates are planning-level only and may vary by joint thickness, block size, waste, and field conditions.
BLOCKS
Block Estimate
Based on standard 8" x 8" x 16" block coverage (approx. 0.89 sq ft per block). Final quantities may vary based on block type, layout, cuts, corners, bond beams, caps, and wall openings.
Estimated Cubic Yards
0
Estimated Pallets
0
Color
Light gray with a uniform concrete finish
Best Uses
Structural walls, garden walls, and general masonry applications where a lower profile block is preferred
Coverage
Approximately 1.125 blocks per sq ft depending on joint spacing
Installation Tips
Lay with mortar in a staggered pattern; ensure a level base and consistent joint spacing for stability
More to Explore
Similar styles and materials worth considering.
Installation Essentials
Landscape Fabric & Staples
Essential for weed control, cleaner installs, and long-term performance beneath gravel, mulch, and pavers.
- Helps reduce weed growth
- Allows water to pass through
- Ideal beneath gravel, mulch, and pavers
- Staples help keep fabric securely in place
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Frequently Asked Questions
Quick answers on materials, pickup & delivery, and project support.
Ordering & Materials
How do I know how much material I need?
Use our coverage calculators
for quick estimates, or contact our team and we’ll help you calculate exactly what you need.
Do you sell to homeowners or only contractors?
We serve both homeowners and professionals — no account required.
Can I see materials in person before buying?
Yes — we recommend visiting a yard to view color and texture in natural light.
Do materials look exactly like the photos online?
Natural stone and aggregates can vary. Photos are representative, but seeing material in person is best for final selection.
Pickup & Delivery
Can I pick up material or do you offer delivery?
Both. Pick up at any location or schedule delivery directly to your home or job site.
How quickly can I get delivery?
Most deliveries can be scheduled within 1–2 business days depending on location and availability.
Do you deliver to my area?
We deliver throughout all of Southern California. Contact us to confirm details for your specific location.
Is there a minimum order for delivery?
Minimums can vary depending on material and distance — our team can provide details quickly.
Project Support & Care
Do you help with material selection?
Yes — we can recommend materials based on your project type, application, and desired look.
Can you support commercial or large projects?
Absolutely. We assist with sourcing, availability, logistics, and coordination for larger projects.
Do you carry sealers and stone care products?
Yes — we carry sealers and stone care products to help protect and maintain your materials.
Still have a question?
Reach out and we’ll help fast. Visit our contact page or call your nearest location.