Joists are to have minimum end bearing of 40mm. Wane as allowed in BS 4978:2007+A2:2017 is permitted in all sections included in these span tables. Proprietary strutting is to be used in accordance with manufacturers recommendations. Solid timber strutting to be at least 38mm thick and be a minimum of three quarters of the joist depth. Joist spans over 4.5m - provide 2 rows of strutting at third span positions.Joist spans 2.5m to 4.5m - provide strutting at mid-span.Joist spans up to 2.5m - no strutting required.Strutting or blocking between joists is required as follows Holes drilled at the neutral axis (centre line) are not to exceed 0.25 of the depth of a joist and are not to be less than three diameters (centre to centre) apart and are to be located between 0.25 and 0.4 of the span from the support. Notches are not to exceed 0.125 of the depth of the joist and are to be located between 0.07 and 0.25 of the span from the support. Timber to be covered, these span tables do not apply to timber which is fully exposed to the elements. The dead loads shown at the top of span table above do not include the self weight of the joists, however, the joist self weights are included (in addition to the dead loads) in the calculations used to determine permissble clear spans. The allowable clear spans have been calculated in accordance with BS 5268-2:2002 Structural use of timber - Part 2: Code of practice for permissible stress design, materials and workmanship and BS 5268-7.1:1990 Structural use of timber - Section 7.1 Domestic floor joists. Available in 600mm increments from 2.4m to 13.Dead load per square metre (in kN/m²) supported by joistsĬentre-to-centre spacing of joists (in mm).For quality assurance the Futurebuild range is manufactured with independent audit processes and product certification.Īll Futurebuild LVL products are manufactured using a type ‘A’ bond with less than 0.5mg/L formaldehyde emissions from the final product (equivalent to E0). Characteristic Properties are determined in accordance with AS/NZS 4063.2:2010 and so comply with the provisions of the New Zealand Building Code through clause 2.3 for engineering design in accordance with NZS3603:1993 Timber Structures Standard.įuturebuild LVL is committed to manufacturing innovative engineered building products. Solid Futurebuild LVL products are manufactured in accordance with AS/NZS 4357, Structural Laminated Veneer Lumber. computeIT ®software suite available for specific engineering design.Supported by technical support and software from Futurebuild LVL. Residential Span Tables available - refer brochures below.Available Forest Stewardship Council® (FSC®) certified (FSC® C007103) upon request.Manufactured from sustainably-grown NZ plantation pine.Stringent quality control – EWPAA certified.Each piece is branded for ease of identification.Untreated and H3.1 LOSP treated product available made to order subject to minimum volumes and lead times, Contact us for further information.Readily available and stocked H1.2 treated using a glue line and surface spray treatment to the requirements of NZS 3640.Veneers are bonded together using type 'A' (marine) bond, known for long-term durability in structural applications.Straight, true, strong, lightweight and dimensionally stable.hySPAN is not intended to support brickwork or other heavy masonry products. hySPAN is suitable for all structural applications in residential, commercial, industrial and rural buildings subject to design verification. HySPAN ® laminated veneer lumber (LVL) is easy to work with using traditional building tools and is clearly branded for easy identification and your guarantee of quality.
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