Markets

XLam offer a number of construction solutions to meet specific market segments. In particular,

What Is Cross Laminated Timber?

Cross Laminated Timber is a generic name given to large structural building panels made from solid wood boards glued together in layers. Like plywood, CLT panels are very strong because the layers of boards run in opposing directions.

What is Cross Laminated Timber?

The manufacturing process entails taking raw rough-sawn Radiata pine boards from the sawmill and cutting out large knots and other defects which usually makes for reduced lengths. The shorter boards are then finger jointed together into the selected length for their intended CLT panel, then planed on all sides. The planed boards are placed into a press in layers of alternating direction, with glue applied between the layers. Pressure is applied, and after curing, panels are removed from the press and trimmed to exact sizes and edge profiles at a CNC machining centre. They are then ready for delivery to the building site. You can view this process here.

Each panel is custom built to the designer’s specification. Panel size is governed by the press, which measures 15m x 3.5m. Panel thickness depends on the intended load and span. The most common configurations have 3, 5 or 7 layers, with cumulative panel thicknesses between 60mm and 250mm. For full information refer to the Technical section and the XLam Design Guide.

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CLT has been widely used in Europe for over 20 years, and in recent years has been gaining ground in North America. The environmental and construction benefits of CLT make it a growth industry, with more manufacturing plants opening each year. XLam was the first CLT manufacturer in the southern hemisphere, and is the only one in Australasia. Later in 2017, XLam will become one of the few manufacturers with more than one CLT plant.

Custom Build

There are times when a standard ‘out-of-the-box’ solution just won’t do. XLam has proven capabilities in supporting the development and design of bespoke projects. Our services extend to providing engineering review and support or purchasing a fully integrated structural engineering service, and of course we manufacture the panels and provide logistics support. So, if you are a customer looking to develop a project to meet your exacting criteria, a custom built structure may be what you are looking for.

Custom Build

For more information visit XLam House

XLam House is dedicated to the supply of sustainable engineered building solutions in natural solid wood. A young, innovative company, XLam’s roots lie in deep and longstanding family commitments to the timber industry on both sides of the Tasman.

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CASE STUDY Addington House

XLam CLT

Off-site Prefabrication

We prefabricate each panel at either of our Trans-Tasman factories ready for assembly on-site. Building in CLT is cleaner, quieter and less disruptive and the construction process is made much swifter due to the opportunities ushered by prefabricated methods. After manufacturing the product off-site, we then deliver to site, and assemble it like building blocks. This innovative way of construction allows for greater speed and thus creates additional benefits all-round. XLam are proud to offer this solution and we continue to sponsor prefabAUS and prefabNZ as part of our commitment to sustainable methods of construction.

Student Residential

XLam offer considerable expertise in the area of designing, manufacturing and delivering student accomodation projects through Australia and New Zealand. Student accomodation projects are particularly suited to CLT as a construction material due to the smaller rooms and ‘honeycomb design’, shorter spans and replicated floor designs on each level.

Student Residential

In January 2017 work begun on the Otago Polytechnic Student Village, which will have a super structure built entirely of wood. The 231 bed facility will include single dormitory rooms, studios and four bedroom apartments. The build represents the first time CLT has been used in Dunedin, with the complex set to be New Zealand’s largest timber-framed building of its type by height and volume. The use of CLT makes the facility 20% lighter than it would have been if concrete or steel were used and also cheaper and more environmentally friendly. Project Manager, Sam Cadden from Logic Group, said he was proud to be involved with the delivery of the Otago Polytechnic’s vision.

“This innovative construction will set new standards of sustainability within the industry,” he said. Designed by Dunedin architects Mason & Wales, the development features a façade treatment developed in collaboration with prominent Maori artist Simon Kaan. The building is currently in use by students.

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Multi-unit Residential

By using a prefabricated timber solution, together with pre-fabricated bathroom PODS, builders are able to bring our finishes trades in much earlier during the structure phase we compared to conventional concrete framed buildings. Additionally, a timber solution has the potential to cut down on structural cycle times, achieving an 8-day floor to floor cycle.

Multi-unit Residential

CLT is often used as the structural elements of the building, whilst timber framing for in-fill walls saves on material costs and are readily available from local frame and truss plants. The repetitious nature of the design in many multi-residential projects provides considerable efficiencies as the project progresses and the teams are more familiar with the way the building structure is assembled on site.

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CASE STUDY Housing New Zealand

Our CLT

Our Cross Laminated Timber product consists of large building panels made from solid wood boards laminated together in cross-layers. Due to the opposing directions of each laminated board, our CLT panels are some of the strongest solutions in construction, with a very high strength-to-weight ratio.

Utilising Radiata pine boards from the sawmills, each panel is custom built to the designer’s specification. We ensure that any defects are mitigated before processing our timber. Shorter boards are finger jointed together into selected lengths for the intended CLT panel, then planed on all sides. The planed boards are then placed into a press in layers of alternating direction, with glue applied between each layer.

After pressure is applied, panels are removed from the press and trimmed to exact sizes at our CNC machining centres. Shortly after, our CLT product is then ready for delivery.

Commercial Offices

The combination of CLT and GluLam marry perfectly in commercial office building applications, which typically demand longer spans form engineered timber products. The basement car parking grid layout (typically 8m x 8m or 8m x 9m etc.) typically determines the grid used throughout the entire project. Hence, CLT, at present, is incapable of spanning such distances in both directions, therefore CLT is best used in an application is it most suited for, in this case as a floor system supported by columns and beams.

Commercial Offices

GluLam is often used to construct the building’s columns and beams. GluLam is manufactured by gluing together smaller pieces of stress-graded and seasoned laminates, which are dressed to exact and uniform thickness. Because of the use of multiple laminates, GluLam is usually stronger than solid timber. The CLT is then placed above the GluLam structure to complete the floor system.

Typically, a glass and solid material facade maximise daylight penetration and reduce solar heat gain. The occupancy of an open plan office space is very appealling to organisations who purchase these offices, not to mention the biophilic benefits of working in a timber structure connected to nature.

Furthermore, engineered wood has great fire-resistant characteristics, with large timber beams proven to be able to retain their integrity even after being exposed to a fire.

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CASE STUDY Plant & Food Commercial Building

Education

One of the key reasons for CLT being popular in the education sector is because the efficiency and speed of CLT construction allowed schools to be built much more quickly, reducing disruptions to students and teachers. In the UK, the construction industry began to notice that not only could these projects be constructed faster but they were also no more expensive than those using traditional materials.

Education

As a prefabricated offsite solution, CLT is factory manufactured to exceptional levels of accuracy, ensuring minimal defects. This improves procurement, construction and project delivery timescales as well as reducing costs, saving money and maximising efficiency on all levels. It is fast becoming the material of choice for specifiers due to its inherent structural qualities that include speed of construction as well as airtightness and carbon sequestration but most importantly, its effect on internal environments when left exposed. Not to mention the improved well-being of students who occupy the learning spaces on a daily basis.

CASE STUDY Richmond Community Hub

Vertical Extensions

XLam have been involved in several vertical extension projects, including early involvement in the design to assist with the integration of a CLT/GluLam hybrid solution. The possibilities of vertical extensions on top of existing structures considerably change the realestate landscape, in that we can now build cities upon cities.

Vertical Extensions

Vertical extensions located on existing buildings are made possible by the use of lightweight CLT. Where a vertical extension in concrete may not be possible, CLT offers an alternative solution at 20% the weight of concrete enabling loads to be transferred into the existing columns and foundations.

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CASE STUDY Monash University Business School

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