As a leading structural timber manufacturer, Auswood designed Envirojoist to overcome the limitations of conventional timber framing. Unlike solid timber that can warp, twist or shrink, engineered I-joists maintain consistent dimensions and structural integrity throughout their service life. The lightweight design reduces handling and labour costs while spanning longer distances with fewer intermediate supports, creating more open floor plans. Envirojoist resists common timber defects like knots and splits that compromise strength. The H2S treatment provides built-in protection against moisture and termites, essential for Australian climatic conditions from coastal humidity to inland heat. Builders benefit from faster installation times, reduced callbacks, and full compliance with AS/NZS structural timber standards, making it a cost-effective choice for modern construction projects.

Envirojoist I-Joist excels in demanding structural applications where high load-bearing capacity and long spans are required. It’s primarily used for residential and commercial floor joist systems, supporting both single-storey and multi-level constructions with minimal deflection. The product performs exceptionally well in roof rafter and ceiling systems, allowing architects to design open-plan spaces without intrusive support posts. Envirojoist is also ideal for structural beams and headers in framed construction, particularly above openings and load-bearing walls. Its lightweight nature makes it perfect for renovations where weight restrictions apply. The engineered design allows service penetrations for electrical wiring and plumbing without compromising structural integrity, streamlining construction processes and reducing trade conflicts on site.

Auswood International manufactures and supplies Envirojoist I-Joist directly through distribution centres in Sydney (Milperra, NSW), Melbourne (Laverton North, VIC), and Brisbane (Luscombe, QLD). As a trusted structural timber supplier serving builders, contractors and developers nationwide, Auswood offers same-day shipping on stocked items, subject to conditions. Contact their team on 1800 888 986 or email info@auswood.com.au for product availability, technical specifications, span table calculations, and delivery schedules. Auswood’s technical team can assist with custom sizing requirements, engineering support, and compliance documentation. Office hours are 9am to 5pm, with drop-offs and pick-ups available 7am to 3pm Monday to Friday. Their experienced staff can help specify the correct Envirojoist dimensions for your specific structural requirements.

Yes, Envirojoist I-Joist represents a sustainable structural timber choice for environmentally conscious builders and developers. Auswood manufactures the product using renewable softwood resources from sustainably managed forests, with Spruce LVL flanges sourced from fast-growing plantations that undergo cyclical harvesting. The engineered manufacturing process maximises timber utilisation by transforming smaller wood sections into high-performance structural components, significantly reducing waste compared to solid timber milling. Envirojoist has a lower carbon footprint than steel or concrete alternatives while delivering comparable load-bearing performance. The product’s longevity and resistance to warping mean fewer replacements over a building’s lifetime, further reducing environmental impact. For projects targeting green building certifications or sustainability goals, Envirojoist provides the structural performance needed while supporting responsible resource management.