James Jones & Sons Ltd, Timber Systems Division manufactures the JJI-Joist, a structurally engineered timber joist combining high-grade softwood with an engineered composite panel. JJI-Joists are standard building components used in commercial and residential construction as load bearing or non load bearing members for roofs, walls and floors.
A JJI-Joist offers many design and performance advantages over conventional structural products including a resistance to shrinking and warping, an excellent strength to weight ratio, straight and uniform dimensions and FSC accreditation.
Accreditations & Affiliations
- Structural Timber Design Knowledge
- ISO: 9001
- In House Quality Procedures
- CE Mark Product
- BM TRADA Q Mark Product