Structural Timber Supplier Sydney Australia

The major structural components of any outdoor deck are bearers, joists, posts and ledger beams, which are responsible for the framework support underneath floorboards. Timber and LVL Beams is used most commonly in domestic installations although steel may be substituted. The rating and profile of structural components relies most importantly on spans and loadings. Material used on the deck, location and landscape, design and deck related bushfire risk are also key considerations. Treated softwood (H3, H4 and H5) structural timber is used in most decking situations with Hardwood and Engineered beams also consistently used. Span tables are available here. For alternative sizes, spans and stress grades or for members supporting roof loads, refer to AS 1684 Residential timber-framed construction.

We offer a range of structural timber products at Master Woodturning in both standard and Non-Standard sizes.

Just some of the products we offer include:

  • LVL Beams
  • I Beams
  • Structural Beams
  • Plywoods
  • Bearers
  • Joists
  • Roof Trusses
  • Timber Framing
  • Finger Jointed Primed Treated Pine
  • Treated Pine
  • (F) Rated Timber
  • (H3) & (H4) Rated Timber
  • Design Pine Products
  • Dindas Australia Products


specialise in the following range of products:

  • DAR Square Boards
  • DAR Pencil Round Boards
  • Quad
  • Scotia
  • Cover Strip
  • External Corner Moulds
  • Eaves Lining
  • Vee-Joint Shiplap
  • Weatherboard
  • Chamfer Boards
  • Fascia
  • Handrail
  • Bottom Rail
  • Door Jambs
  • GL8 Posts
  • GL10 Posts


Softwood Vs Hardwood

There are two kinds of structural timber that are largely used in Australia being a Hardwood product or a Softwood product.

Structural Hardwood Timbers are predominantly used for bearers, joists and load bearing sections in building and general construction. Kiln Dried Hardwood timber is structurally graded to ensure it is strong and dimensionally stable.  Kiln Dried Hardwood products do not shrink and twist as much as unseasoned timbers.  This helps to eliminate squeaks under Timber Floors or the cracks in plaster walls and ceilings.

Structural Softwood Timbers are manufactured primarily from Kiln Dried Pine. Structural Pine is also strong and elementally stable and used for wall frames and roof trusses. Structural Pine produced in Australia is cost-effective, light weight and easy to install. Like the Structural Hardwood Timber, Structural Pine is graded to ensure that it is load bearing capability is suitable to comply with the Australian Building Code Standards.

Structural timber products are a fundamental part of our range of products at Master Woodturning. We specialise in Australian and imported Structural timber products and we carry ample stock to fulfil both small and large volume orders. We pride ourselves on being able to meet our customers’ demands in the full variety of Structural timber product.












S1 F27 F22 F17 F14 F11
S2 F22 F17 F14 F11 F8
S3 F17 F14 F11 F8 F7
S4 F14 F11 F8 F7 F5
S5 F11 F8 F7 F5 F4
S6 F8 F7 F5 F4  


SD1 F43 F34 F27 F22 F17
SD2 F34 F27 F22 F17 F14
SD3 F27 F22 F17 F14 F11
SD4 F22 F17 F14 F11 F8
SD5 F17 F14 F11 F8 F7
SD6 F14 F11 F8 F7 F5
SD7 F11 F8 F7 F5 F4
SD8 F8 F7 F5 F4  


H1 Inside, Above Ground Completely protected from the weather and well ventilated and protected from termites Lyctid Borer Framing, flooring, furniture, Interior Joinery
H2 Inside, Above Ground Protected from wetting, Nil leaching Borers and Termites Framing, Flooring etc., used in dry situations
H2F Inside, Above Ground Protected from wetting, Nil leaching Borers and Termites Framing (Envelope Treatment) used in dry situations south of the Tropic of Capricorn Only
H2S Inside, Above Ground Protected from wetting, Nil leaching Borers and Termites LVL/Plywood (Glue-line Treatment) used in dry situations south of the Tropic of Capricorn only
H3 Outside, Above Ground Subject to periodic moderate wetting and leaching Moderate Decay, Borers and Termites Weatherboard, fascia, pergola posts (above ground), window joinery, framing and decking
H3A Outside, Above Ground Products predominately in vertical exposed situations and intended to have the supplementary paint coat system that is regularly maintained. Moderate Decay, Borers and Termites Fascia, bargeboards, exterior cladding, window joinery, door joinery & non-laminated verandah posts
H4 Outside, In-Ground Contact Subject to severe wetting & leeching Severe Decay, borers & Termites Fence posts, greenhouses, pergola posts (in-ground) & landscaping timbers
H5 Outside, In-Ground Contact, contact With or In Fresh Water Subject to extreme wetting and leaching and-or where the critical use requires a higher degree of protection Very Severe Decay, Borers & Termites Retaining Walls, piling, house stumps, building poles, cooling tower fill
H6 Marine Waters Subject to Prolonged Immersion in Sea Water Marine Wood Borers & Decay Boat Hulls, Marine Piles, Jetty Cross Bracing