CorPlug is a tested and approved assembly used to infill abandoned floor cores in multi-level office buildings.  CorPlug is designed to be effective in repairing the core hole regardless of the profile of the underside of the floor.CorPlug installs in under five minutes from the floor where the Tenant Improvement is performed, is flush with the finished floor and has a 2-hour F/T rating.CorPlug provides building owners, managers and engineers with an alternative method of core hole repair that is certified and proven as a fire-life safety product that saves time and money in buildings undergoing tenant improvement projects.