Hollowcore Residential Applications

Hollowcore systems are prestressed concrete plank that serve as both a ready-made sub floor for a garage, and a ceiling for additional living areas.

Economic Solution

Maximize space in any house plan for approximately $20 per square foot with Hollowcore Roof and Floor Systems from County Materials. Hollowcore systems are prestressed concrete plank that serve as both a readymade sub floor for a garage, and a ceiling for additional living areas.

Creates multi-functional living and storage rooms
Insulates between basement floor and first floor living spaces
Meets IBC and UBC standards, and fire ratings up to 3 hours
Reduces sound transmission through floors and ceiling for a quieter living environment
Maintains comfortable indoor temperatures

Professional Service and Support

County Materials’ experienced sales team will assist with your design plans and provide comprehensive estimates. Design professionals will prepare drawings, finalize sizes and provide necessary engineering details to ensure proper installation methods for a successful project.

Construction Benefits

Hollowcore helps to speed up the construction process. In less than one day, and in most weather conditions, an experienced erection crew can install Hollowcore plank with a mobile crane for a typical garage floor. Hollowcore is hoisted from a flatbed trailer, placed directly on the supporting structure connected to steel framing, masonry or cast-in-place concrete walls. Plank-to-plank joints are leveled and grouted, creating an instant flat work deck.

As a contractor-friendly building material, Hollowcore from County Materials is easy to install, and works efficiently with heating, air-conditioning, plumbing and electrical trades. Planks are made to specified lengths for each project, accommodating house plan with unique angles and curves.

Manufactured in depths of 8”, 10” and 12”
Allow for spans up to 44’ (@50 psf)