A hollow core concrete masonry unit (CMU) used for laying up load-bearing and non-load-bearing masonry walls. The two-cell hollow design reduces the weight of each unit compared with a solid block of the same size, making it easier to handle on the scaffold while leaving open cores that can be reinforced and grouted where the wall design calls for it.

Units are laid in running or stack bond with mortar in the bed and head joints. The cores align vertically from course to course so vertical rebar can be dropped in and the cells filled with grout at bond beams, pilasters, control points and anchorage locations. Face shells and webs are cast to consistent dimensions so courses run level and plumb with standard mortar joints.

The block takes parging, stucco, direct-applied finishes or furring and drywall, and accepts standard masonry accessories such as ladder and truss joint reinforcement, anchors and ties.

Key Features

• Hollow core construction with open cells for vertical reinforcement and grout fill
• Cast from concrete for dimensional consistency course to course
• Lighter to handle than a solid unit of equivalent size
• Cells align vertically when laid in running or stack bond
• Compatible with standard mortar, joint reinforcement, anchors and ties
• Surface accepts parging, stucco and direct-applied finishes, or can be furred out
• Non-combustible masonry material that does not rot or attract insects
• Sold as individual units

Applications

• Foundation and basement walls
• Load-bearing and partition walls in commercial and residential construction
• Reinforced and grouted masonry walls with vertical rebar
• Retaining and site walls
• Elevator shafts, stair enclosures and mechanical chases
• Backup walls behind brick, stucco or other veneers

Product Details

• Type: Hollow core concrete masonry unit (CMU)
• Material: Concrete
• Core: Hollow
• Size: 10 in. x 8 in. x 18 in.
• Sold By: Each

Specifications

1. Submit a quote request for this product
   
2. Our team reviews availability and pricing
   
3. We follow up with a detailed quote and next steps
   

Special order items are sourced to your project requirements. Pricing, availability, and lead times vary by product and quantity.

• Local pickup options available
• Delivery available depending on product and location
• Lead times vary based on availability and order size

Need Help?

Have questions or need help selecting the right materials?

Our team is happy to help.