Industry Leaders

The only manufacturer of a patented precast assembly for infilling abandoned floor cores in commercial buildings.


Tested by QAI Labs to maintain a 2 hour F and T rating in accordance with the requirements of ASTM E814



Certified and approved building product
ESR #3939
Division: 07 00 00
Section: 07 84 13.16
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CorPlug is easily installed from above saving large amounts of time and effort.


Quickest and most economical way to get floor systems back to code, saving you $$$.

No accessing the suite below
No onsite mixing

Repair abandoned core holes the right way.



CorPlug Repair Kits are made in the USA, available in eleven sizes (1.0”-6.0”) and shipped nationwide.

How it Works

CorPlug Installation Video

Proudly Made in the USA