Roof Trusses

A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.

Timber roof trusses were a medieval development. Earlier roofs had been supported by coupled rafters – pairs of rafters linked by horizontal beams. But such roofs were structurally weak, and lacking any longitudinal support were prone to racking, a collapse resulting from horizontal movement…. more


Laminated Beams

Glued laminated timber, also called glulam, is a type of structural engineered wood product comprising a number of layers of dimensioned lumber bonded together with durable, moisture-resistant structural adhesives. In North America the material providing the laminations is termed laminating stock or lamstock.

By laminating a number of smaller pieces of lumber, a single large, strong, structural member is manufactured from smaller pieces. These structural members are used as vertical columns or horizontal beams, as well as curved, arched shapes. Glulam is readily produced in curved shapes and it is available in a range of species and appearance characteristics to meet varied end-use requirements. Connections are usually made with bolts or plain steel dowels and steel plates….more

Open Web Joists


Open web joists are composite timber and steel joists forming an open web design. This provides the lightness of timber with the strength of a steel web. Our open web joists are lightweight, strong, easy to install and available in various lengths.

The open web design means that using these joists offers a flexible solution for any future internal building layout modifications, plus they eliminate costly cutting and drilling when installing services or incorporating modern ventilation and heat recycling systems.

Our web joists allow for longer clear spans or shallower depths than other engineered timber joists, and are ideal for floors or flat and mono-pitched roofs. They are also the perfect solution for environmental sustainability, as they can help cater for thicker insulation and mechanical heat recovery and ventilation systems, assisting with creating more energy-efficient buildings….more

Engineered Joist


An engineered wood joist, more commonly known as an I-joist, is a product designed to eliminate problems that occur with conventional wood joists. Invented in 1969, the I-joist is an engineered wood product that has great strength in relation to its size and weight. The biggest notable difference from dimensional lumber is that the I-joist carries heavy loads with less lumber than a dimensional solid wood joist. As of 2005, approximately 50% of all wood light framed floors used I-joists. I-joists were designed to help eliminate typical problems that come with using solid lumber as joists. The advantage of I-joists is they will not bow, crown, twist, cup, check or split as would a dimensional piece of lumber. I-joists’ dimensional soundness and little or no shrinkage. help eliminate squeaky floors….more