ORCO Block & CMU
in Los Angeles
Prime Building Materials stocks the full ORCO block lineup for LA contractors. Standard CMU, split face, slump block, burnish, precision, variegated, and mid-century screen block. Contractor pricing. Same-day pickup in North Hollywood.
Southern California's Go-To CMU Manufacturer for 75+ Years
ORCO Block is a family-owned SoCal manufacturer. Their plants in Stanton, Oro Grande, and Riverside have been producing ASTM C90-certified concrete masonry units for over 75 years. That history matters on permitted LA projects.
Structure and Finish in One
ORCO CMU provides both structural performance and decorative finish. Split face, burnish, slump, and precision finishes mean the block is the wall finish. No additional cladding required.
ASTM C90 Certified
All structural ORCO CMU are manufactured to ASTM C90, the loadbearing concrete masonry unit standard. Normal, medium, and light weight categories are available. Documentation is available for permits.
SoCal Manufacturer
Plants in Stanton, Oro Grande, and Riverside. A regional manufacturer means consistent product, predictable lead times, and local technical support for Los Angeles projects.
Multiple Finish Options
Precision, split face, burnish, slump, shot blast, variegated, and screen block finishes. Every major LA architectural style from Spanish mission to contemporary is covered in one brand.
Slump Block for Spanish Homes
Slump block is a uniquely SoCal product. Its Adobe brick look is specified constantly on Spanish colonial, mission-style, and Mediterranean homes throughout the LA basin. ORCO is the standard source.
In Stock at Prime
We stock the ORCO block types LA contractors use most. Same-day pickup in North Hollywood. Call (818) 503-4242 to confirm the specific size, finish, and quantity before your pour.
ORCO CMU Products We Stock & Special-Order
ORCO manufactures concrete masonry units in four primary finish categories plus specialty products. Call (818) 503-4242 to confirm what is in stock in the size and finish you need.
Standard Gray CMU
Structural loadbearing concrete masonry units in standard gray. Available in full and half units across five widths. ASTM C90 compliant. Used for structural walls, retaining walls, and commercial construction throughout LA.
- 4" CMU full and half units
- 6" CMU full and half units
- 8" CMU full and half units, most common size
- 10" CMU full and half units
- 12" CMU full and half units, heavy structural applications
Split Face, Burnish & Shot Blast
Decorative CMU finishes that provide both structure and wall finish in a single product. Used on commercial facades, landscape walls, outdoor kitchens, and high-end residential block walls.
- Split Face CMU rough-textured face, decorative structural walls
- Burnish Block smooth polished finish, premium commercial look
- Shot Blast CMU aggregate-exposed surface texture
- Precision Block tightest dimensional tolerances, smooth face
- Variegated CMU multi-tone color variation in a single unit
Slump Block & Screen Block
Two specialty ORCO products with strong demand in Los Angeles. Slump block for Spanish and mission architecture. Screen block for mid-century and decorative wall applications.
- Slump Block Adobe brick look, Spanish and mission-style homes
- Screen Block mid-century style, decorative open-pattern walls
OBP Blended Products
ORCO Blended Products offer additional formulated concrete masonry solutions. Contact Prime for current availability and specifications on OBP products for your project requirements.
- OBP Blended Products call (818) 503-4242 for specs and availability
Which ORCO Block for Which Job
A quick reference for contractors matching ORCO CMU types to common LA construction and landscape applications.
| Project Type | Recommended ORCO | Finish | Why It Works |
|---|---|---|---|
| Structural block wall | 8" Standard Gray CMU | Standard | ASTM C90, most common structural wall size, stucco or paint over |
| Spanish or mission-style fence | Slump Block | Slump | Adobe brick look matches SoCal Spanish colonial and mission architecture |
| Decorative landscape wall | Split Face CMU | Split Face | Rough texture is the finish - no additional cladding needed |
| Premium commercial facade | Burnish Block, Precision Block | Burnish / Precision | Smooth, refined finish for commercial and institutional buildings |
| Mid-century style wall | Screen Block | Decorative | Open-pattern block suits mid-century modern architecture common in LA |
| Outdoor kitchen or BBQ island | Split Face or Burnish Block | Split Face / Burnish | Decorative face eliminates need for tile or stone cladding over the CMU |
| Retaining wall structure | 6" or 8" Standard CMU | Standard | ASTM C90 structural compliance, grout-fill and rebar cores available |
ORCO Block: 75+ Years in Southern California
ORCO Block and Hardscape is a family-owned Southern California manufacturer. Plants in Stanton, Oro Grande, and Riverside have been producing ASTM C90-certified concrete masonry units for over 75 years. Consistent product. Local supply chain. Regional technical support.
Frequently Asked Questions
Does Prime Building Materials supply ORCO Block?
Yes. Prime Building Materials is an authorized ORCO Block supplier serving Los Angeles, the San Fernando Valley, and surrounding Southern California areas. We stock and special-order ORCO concrete masonry units including standard CMU, split face, slump block, burnish block, precision block, variegated CMU, and screen block.
What ORCO CMU products do you carry?
We carry ORCO concrete masonry units including standard gray CMU in 4, 6, 8, 10, and 12 inch widths in full and half units, split face CMU, slump block, burnish block, precision block, variegated CMU, and mid-century screen block. Call (818) 503-4242 for current stock and availability.
What ASTM standard does ORCO CMU meet?
All ORCO structural CMU are manufactured to meet ASTM C90, the Standard Specification for Loadbearing Concrete Masonry Units. Weight categories include Normal (125 pcf or greater), Medium (105 to 125 pcf), and Light (85 to 105 pcf). ORCO's plants produce to tight C90 tolerances with documentation available for permit submissions.
What is slump block and when is it used in Los Angeles?
Slump block is a concrete masonry unit with an Adobe brick appearance created during manufacturing. It is widely used in Los Angeles for block walls, fences, and structures on Spanish colonial, mission, and Mediterranean-style homes. It gives an organic, handmade look that complements older LA home styles. Call (818) 503-4242 to confirm current slump block availability.
Can I get ORCO block with same-day pickup in Los Angeles?
For in-stock block types and sizes, same-day pickup is available at our North Hollywood yards. Call ahead to confirm the specific CMU type and size you need before driving over: (818) 503-4242. We are open Monday through Friday 7am to 5pm and Saturday 7am to 2:30pm.
Where is ORCO Block manufactured?
ORCO Block is a family-owned Southern California manufacturer with over 75 years in business. Production facilities are in Stanton, Oro Grande, and Riverside, California. As a regional manufacturer, ORCO provides consistent lead times and local technical support for Los Angeles contractors.
Do you deliver ORCO block to job sites in Los Angeles?
Yes. We deliver ORCO CMU and block to job sites throughout Los Angeles, the San Fernando Valley, and surrounding SoCal areas. Call (818) 503-4242 for delivery minimums, scheduling, and pallet quantities.
Also see: block and brick at Prime, Belgard pavers, Angelus pavers, and clearance inventory.
Ready to Price Your ORCO Project?
Call for same-day pricing, visit our North Hollywood yard for block samples, or submit a quote request online. We serve contractors and homeowners across Los Angeles and SoCal.