🧱 Retaining Walls
CMU Block — 12"
Nominal 12" × 8" × 16" hollow CMU. Standard for taller retaining walls, basement walls, and any wall where rebar spacing and grout volume require the wider core.
Available sizes
12" × 8" × 16" nominal
Gallery
Material pile
Installed
Wet
Close-up
Representative visualizations. Actual color, texture, and size vary by supplier and lot.
Ready to order?
Order CMU Block — 12" — delivered.
- Delivered to your project
- Contractor pricing available
- Managed by Yardexa end-to-end
- One point of contact
Free to request. No account required.
Availability
In stock- Available in Southern California
- Available in Northern California
- Delivered pricing available
- Heavy equipment delivery available
Typical lead time
1–3 business days
Delivery options
End dumpSuper sacksTruck & transfer
Yardexa coordinates pricing and delivery — you order through Yardexa, not through individual yards.
Why order through Yardexa
A real materials company — coordinated for you.
- Material expertiseEvery product page written by people who spec and deliver materials for a living.
- Managed procurementOne request per project. Yardexa handles pricing, sourcing, and delivery — no calls to five yards.
- Professional supportA specialist follows every order — before, during, and after delivery.
- Delivered pricing, preparedYardexa prepares delivered pricing that includes truck, fuel, and site coordination — not a surprise on the invoice.
- Fulfillment network handledYardexa coordinates sourcing behind the scenes — you never contact yards directly.
- California coverageLive routes across LA, OC, San Diego, Riverside, Inland Empire, and Ventura.
- Project planning toolsCalculators, bundles, and a project cart that mirror how contractors actually order.
Advantages
- Wider grout core for heavier reinforcement
- Handles taller retaining walls
- More cover on rebar
Applications
- Retaining walls > 4 ft
- Basement walls
- Commercial walls
Specifications
- Weight
- ~52 lb per block
- Coverage
- 1.125 blocks per sq ft of wall
Common uses
RetainingStructural
Related calculators
Related materials
CMU Block
Concrete masonry units for structural walls.
CMU Block — 6"
6" CMU for lighter partitions and garden walls.
Mortar
Cement / lime / sand mix for block, brick, and stone.
Grout
High-flow cement / sand mix that fills cells and joints.
Geogrid
Reinforcement grid embedded between wall courses for tall walls.
Wall Cap
Capstone / cap block that finishes the top of a retaining wall.
Frequently asked
- When should I step up from 8" to 12" CMU?
- Typically at wall heights above ~4 ft or when engineering calls for #5 or larger vertical rebar and higher grout volume.