Aesthetically attractive structural timber components of large sizes and complex shapes can be fabricated from smaller sawn sections (laminations) by the process of glued lamination, known as ‘glulam’. Glulam is a high-performance product for structural Design > Engineer;ing applications produced in factories with robust production control systems.
Glulam often catches the eye of designers for use in specialist buildings. However, glulam can be used for most loadbearing structures, especially where visual appearance is important and where long spans or curved members are crucial.
This Wood Information Sheet (WIS) covers an array of topics relating to glulam including strength-to-ratio details, structural forms and a list of some of the most common sizes of glulam.
It follows the Eurocode 5 method of design.
Glulam is manufactured from layers of parallel timber laminations.
Most structural glulam sold in Europe must comply with EN 14080 and be CE marked in conformity with a Declaration of Performance.
Glulam is generally more stronger than the timber from which it is made because defects such as knots, splits and sloping grain are randomly distributed throughout the component.