Laminated pine is a timber product that has undergone the lamination process. This involves layers of timber glued together with moisture resistant structural adhesive. It is also known as Glulam.
Timber is laminated to improve strength and stability. It consists of at least three layers of dried boards with the timber fibres aligned in a parallel fashion. It can be manufactured in larger sizes and longer lengths than solid timber. It is made as structural members such as beams and columns and is capable of bearing greater loads and reaching longer spans. It can also be manufactured as a curve or an arch.
Made from renewable plantation grown softwood the lamination process is an efficient use of smaller trees from second and third growth plantations. Its high dimensional stability makes it easy to work with minimal variability. Using smaller timber pieces the lamination process removes the natural features that reduce timber strength such as knots. This produces a stronger more stable timber product.
Chemical treatment with LOSP treatment preservative is required for external use to improve durability and resistance to fungal decay and termite.
The Glue Laminated Timber Association of Australia (GLTAA) has established a third party accreditation process to ensure laminated meets quality standards.
Further information
- Uniform Design Criteria - GLTAA Technical Data Sheet
- Termite resistant Glulam & service class 3 applications in treated Glulam - GLTAA Technical Data Sheet