A JJI-Joist is a composite engineered timber joist combining 45mm deep high-grade softwood flanges with a 9mm thick oriented strand board (OSB). Four flange widths are available at 47, 63, 72 and 97mm. It is used in residential and commercial buildings as load- and non-load-bearing members for floors, walls and roofs and supplied in a wide variety of depth to suit UK and European markets.

Company : James Jones & Sons Ltd: Timber Systems Division