2005 Span Tables for Joists and Rafters A tutorial for using the span tables is also available. the user identify which of Boise Cascade’s engineered wood products meet the demands of the BS 5268-7.1 was published before BS 6399-1 was amended to include the more onerous 1.4 kN imposed concentrated load, so the approach adopted for these span tables uses the recommendations given in BS 6399-1, however, both approaches do result in similar joist sizes being calculated. Member/Student* $​25.00. Alternatively, we do provide a Design Professional Member database that is searchable by area of expertise and geographic location. Changes include new design values for Southern Pine and Mixed Southern Pine design values. Read more. Floor Joist Span Tables for various Sizes and Species of Wood. �%�� ���e����E��V��r�����p�+�r��<3�}��SJ�Eh����X��%�2��Tκ*��I��MV�I�A�n� ?�g�:�#A����f^����!�RU3���SԱYV� r�ތ�n>�B�|g�^f���p|�?��U����C���*"7'�1��9�$HF��Oe��t�*'��LY���c*�,��Z G��9џr�g=�����KΞ�+�?T!�kd���K������z+�1��O�ب4ܯu]3���?qD�&������3+j�i��-�ޗ��!����h�N��q�J��h�ɛu��uYv*��2|�{�X��@\Y���[Op��M�ŧ��'E%��[�����wJNuR�̀s Joists are to have minimum end bearing of 40mm. Other span tables are based on the guidance given in BS 5268-7.1 which is a uniformly distributed load of 1.5kN/m² for spans greater than 2400 mm and 3.6 kN load per metre width of floor for spans less than 2400 mm to ensure that very small joist sizes do not result from the calculations for smaller spans. BCI® Joists are specially constructed I-joists with flanges made from strong (the tables permit a bearing length of up to 3.5 inches, but since 1.5 is probably the worst case that you'll … This edition has been updated to the 2012 NDS Design Values Supplement. Timber Treatment; Treatment Types; Timber Durability; Timber Properties; Wood Defects; Moisture & Shrinkage; Treated Pine Span Tables ; Commercial Timbers; Timber Conversion Charts; Hazard Levels; Treated Timber Maintenance; Product Brochures; Timber Management; Glossary; Gallery; News; Contact Us ← Treated Pine Span Tables. It is simple to use, yet flexible Treatment Options. To download our VERSA-LAM® span and size chart PDFs, click on the links below. tO��,�V�eJ7mr�} r��!�)�$�F��{�M�%Ll#W{��W"ole��N��L��7��� �l�% endstream endobj 1 0 obj <> endobj 2 0 obj <>stream A companion Supplement to Span Tables for Joists and Rafters, Design Values for Joists and Rafters tabulates allowable bending stress (Fb) and elastic modulus (E) values for visually graded and mechanically graded dimension lumber. You can also use the Wood Beam Calculator from the American Wood Council website to determine maximum rafter and joist lengths. Roof Rafter Span. Tabular data in this volume are presented as a convenient aid in design of most frequently encountered elements of wood structural framing. This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. hތ�mo�0ǿ��W(~�#M�F�[KW The 2015 Span Tables for Joists and Rafters updates the 2012 edition and provides a simplified system for determining allowable joist and rafter spans for typical loads encountered in one- and two-family dwellings and is referenced in the 2015 International Building Code and 2015 International Residential Code. Treated Pine Span Tables; Commercial Timbers; Timber Conversion Charts; Hazard Levels; Treated Timber Maintenance; Product Brochures; Timber Management; Glossary; Gallery; News; Contact Us; Products. 3) For design parameters, refer to figure 6.22, AS1684.2 and 3. Table 9.1 in Span Tables for Joists and Rafters (Figure #5) gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1.5 inches. This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. Joist spans up to 2.5m - no strutting required, Joist spans 2.5m to 4.5m - provide strutting at mid-span, Joist spans over 4.5m - provide 2 rows of strutting at third span positions. To complete your download of Wood Structural Design Data, you will need a copy of the 2005 NDS Design Values for Wood Construction Supplement. the American Wood Council; concentrated loads and uplift loads caused by wind were not considered. Strutting or blocking between joists is required as follows; Solid timber strutting to be at least 38mm thick and be a minimum of three quarters of the joist depth. Deflection is limited to the span in inches divided by 360, 240 or 180 and is based on live load only. If there is a change to lumber design values in 2012, affected AWC design standards and design aids would be amended accordingly. Changes include new design values for Coast Sitka Spruce and Yellow Cedar and updates to Northern Species design values. Note: Our floor joist span tables are based on loadings given in the newer, amended version of BS 6399-1. BCI ® Joists are specially constructed I-joists with flanges made from strong VERSA-LAM ® laminated veneer lumber with oriented stranded board webs and approved waterproof structural …

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