A Posi-Joist is an "Open Web" or "Metal Web" joist. It combines the structural solidity of timber with the versatility of steel. The design is ingeniously simple yet highly effective: it consists of softwood flanges (top and bottom chords) connected by a unique, precision-engineered steel web system.
Absolutely – especially on projects with underfloor heating or complex M&E runs. mitek posi joist