Section sizes are then cut from 1200 m wide sheets or "billets".
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LVL can also support heavier loads and span longer distances than normal timber. The added durability of being an engineered wood product means LVL is less prone to shrinking or warping. This gives orthotropic properties (different mechanical properties against different axes) in a similar way to the properties of sawn timber, rather than the isotropic properties (the same mechanical properties in each direction) in the plane of plywood. This makes LVL stronger, straighter and more uniform than solid timber and overcomes some of timber's natural limitations such as strength-reducing knots. Prior to lamination, the veneers are dried and the grains of each veneer are oriented in the same direction. LVL can be used wherever sawn timber is used however one of the main advantages is that it can be manufactured to almost any length, restricted only by transportation to site. LVL was developed in the 1970s and is today used for permanent structural applications including beams, lintels, purlins, truss chords and formwork. It is comparable in strength to solid timber, concrete and steel and is manufactured by bonding together rotary peeled or sliced thin wood veneers under heat and pressure.
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Laminated Veneer Lumber (LVL) is a high-strength engineered wood product used primarily for structural applications. Environment Expand Environment sub menu.Continuing Professional Development (CPD).Australian Timber Construction Education Network.Fire Regulation Compliance - Performance Solutions.
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bearing conditions (35mm) or greater have been included. * Joists with a Max.Centre spacing of 600mm or less = 22mm min * Joists with a Max.Centre spacing of 450mm or less = 19mm min Joist Centres are 300mm and can only be used at any joist centres equal to or less than 300mm centres.įlooring thickness must be checked before installation to ensure it can span the intended Max. Centres” is 600mm, the joist can be used at the lower nominated spacings, i.e., 300mm, 400mm, 480mm, and 600mm centres if it’s Max. Centres are the maximum centres that this joist can be installed at. The Class 1 classification includes two sub-classifications: Class 1a and Class 1b In these situations, they must be separated by a wall with fire-resisting and sound insulation properties. They can also be horizontally attached to other Class 1 buildings, such as terrace houses, rowhouses, or townhouses. Typically, they are standalone single dwellings of a domestic or residential nature.