Structural grades: Structural 1 can achieve the highest stress grade. Kiln Dried Hardwood, or KD Hardwood, is a strong, durable timber which is not subject to warping or twisting. Stress grades: Higher F ratings are given to stronger boards. GL8 LOSP H3 Beams. Available in pencil round on all edges this grade provides adequate quality for most exterior applications.Other sizes are also available ex mill. Timber Species Strength Durability Rating Tallowwood F17 - F34 Class 1 Blackbutt F17 - F34 Class 1 Ironbark F22 - F42 Class 1 Spotted Gum F17 - F34 Class 1 Blue Gum F14 - F24 Class 2 Forest Red Gum An F-grade may 14 be stamped on each piece. In-grade testing and/or verification - deriving the respective grade properties using in-grade test data. Sizes from 45x35 to 290x35 & 70x45 to 290x45. F14 Sawn Hardwood GOS. The properties for lesser grade structural timber (lower than F17) graded in this way have a lower reliability and attract a lower capacity reduction factor AS1720.1 Table 2.1. Use the strength groups table to determine if a timber could meet specified stress grades. Posts. F17 Kiln Dried Hardwood - Internal Use - Structural Grade; F27 Kiln Dried Hardwood - External Use - Structural Grade ... F27 Kiln Dried Hardwood - External Use - Structural Grade. We cannot supply/ship these items interstate. M10 T3 Pine. Boral F27 seasoned hardwood is supplied in finished dressed dimensions. F17 Kiln Dried Hardwood Durability 3 - Internal Use. The stress grading system allows the application of characteristic strengths to plywood manufactured from different timber species. F27 is Merbau, Iron Bark, Spotted Gum & Blackbutt. F17 Royal DPR Hardwood. F34 Pacific jarrah, southern spotted or Pacific Crows Ash Both F17 & F27 can be … Similarly, what is KD hardwood? Other timber species available on request. Can supply up to 10m lengths in some instances. The store will not work correctly in the case when cookies are disabled. F17 Sawn Hardwood GOS. F14 Royal DPR Hardwood. F27 Kiln Dried - Spotted Gum or Blackbutt (P/Round Edge) Sizes Available(mm) Length (m) Price (LM) 70x35, 70x45, 90x35, 90x45, 0.9 - 5.4m POA 140x35, 140x45, 190x35, 190x45, 0.9 - 5.4m POA 240x35, 240x45, 290x35, 290x45mm 0.9 - 5.4m POA NOTE: Structural boards F17 & F27 may be supplied with a grading stamp on one face of the Some F17 seasoned is not suitable for outdoor use and a lot of suitable seasoned timber for outdoor applications is F27 which costs a bomb and is a real A - Hole to work with. Australian Hardwood Visual grading Step 1 Visual grading sorts into Structural Grades AS 2082 Step 2 #1 #2 #3#3 #4 #4 #5 AS 2082 Step 2 For each species, Tables in rules assign F22 F17 F14 F11 AS 2082 an F-grade to each of Step 3 the structural grades. M12 T3 Pine. F8, F11, F14, F17, F22, F27, F34 (F7 is included in the standard but is not presently produced). For internal use. Strength groups: S1 and SD1 are the strongest strength groups for unseasoned and seasoned timber respectively.. Select Pine Building Poles H5 F17 Formply. AS 1684.2 and AS 1684.3, which are primary referenced documents under the NCC-BCA, and therefore ‘deemed to satisfy’, include span tables for the seasoned sizes and stress grade F27. F27 Structural Exterior Timber We carry a range of F27 Graded Structural timbers in Spotted Gum and Blackbutt which are suitable for exterior use only. F17 we supply is Vic Ash. F27 Kiln Dried Hardwood Durability 1 & 2 - External Use.