These grades denote a group of species / strength grade combinations which have similar strength / mechanical properties. Related. Related Posts. Durable posts in oak, alder and sweet chestnut are likely to be sought for timber traffic signs etc. Sawn Graded C16 Timber. Beam 17 is ideal for lintels over large window and door openings, garage openings or roof beams where spans over large spaces are dictated by design. Timber is graded in strength classes, relative to BS EN 14081-1: 2005, ie C16 or the stronger C24 grade. We cater for any structural timber design requirements and offer you extremely competitive prices. Size Area Section Modulus Area Moment of Inertia Radius of Gyration; S xx S yy I xx I yy r xx r yy (mm x mm) (10 2 mm 2) (10 3 mm 3) (10 3 mm 3) (10 6 mm 4) (10 6 mm 4) (mm) (mm) 100 x 38: 38: 63.3: 24.1: 3.17: 0.46: 28.9: 11.0: 100 x 50 Trading Hours: Mon to Fri 7:30am - 5:00pm | Sat 8:00am - 12:00pm Phone 03 338 9199 Moisture content is according to the INSTA 141 standard. Here you will find a table of timber sizes and quantities in both metric and imperial measurements. Please note that the sizes mentioned are the Fine sawn (rough) sizes, if you select Planed All Round the end product will be a few millimeters smaller. All sawn pine and spruce timber standard grades and dimensions are according to the EN 1313-1 standard. This is a guide only and any size can have an appropriate use. Softwood comes in standard lengths of 1.80m 2.10m 2.40m 2.70m 3.0m 3.30m 3.60m 3.90m 4.20m 4.50m 4.80m 5.10m 5.40m 5.70m 6.0m and 6.30m. Suggested Sizes: The table below shows common lumber sizes used in British construction along with suggested lengths that are often use for lintels, beams and posts. The Timber Merchant, in general won't stock the smaller sizes and will prefer to sell the longer lengths. S tandard moisture content is 20% (+/- 2%). For example a … The wood from trees use of timber in construction china jis standard alloyed h beam structural stee sizes understanding actual vs nominal sizes in lumber understanding actual vs nominal sizes in lumber hot rolled standard sizes s235jr i beam steel tangshan yuheng. Allowed dimensional variance and shrinkage are according to the ISO 738-1981(E) standard. Readily available in a range of the most commonly specified sizes and lengths, Beam 17 is versatile and more practical to install than steel. Hardwood Beam Sizes. Standard Timber Lengths.