![]() ![]() To learn more about framing a floor and general information on floor framing, visit Framing a Floor on . are not met, use the single span tables for the purpose of obtaining the appropriate size. Span Tables for Joists and Rafters including Design Values for Joists and Rafters (Download) 0.00. Qualified students are those who are full-time students enrolled in a wood design course at a university or college. ![]() (Pricing for Span Tables and Design Values for Joists and Rafters 2005 Combo) Non-member 14.00. To calculate maximum spans on species not shown above, use the Span Calculator or the Span Tables for Joists and Rafters on the American Wood Council website. This edition has been updated to the 2005 NDS Supplement Design Values. To calculate maximum joist spans using different design criteria (loading, spacing, grade, etc.) for these species of framing lumber, see the International Residential Code (IRC). Span Tables for Ceiling Joists (to BS 5268-7.3) Span Tables for Flat Roof Joists (to BS 5268-7.2) Imposed loads of 0. The span tables are intended to be used by designers or builders to select the appropriate sizes of Hyspan for members used in the framing of houses and similar buildings. ![]() The above spans are based on American Softwood Lumber standard sizes. Floor Joist Span Table Live Load = 30 PSF, Dead Load = 20 PSF Floor Joist Span Diagram How to use the Span TablesĮxample: In the joist span table below, the highlighted cell (10-5) indicates that a #2 grade 2" x 8" Douglas Fir joist, spaced 24" apart, can have a maximum span of 10 feet - 5 inches (10-5) if designing for a live load of 40 PSF, a dead load of 10 PSF, and a deflection limit of the total span in inches divided by 360. 2021 Span Tables for Joists and Rafters (STJR) COVER TITLE PAGE TABLE OF CONTENTS EXPLANATION OF TABLES SPAN TABLES APPENDIX A - COMMENTARY CONVERSION DIAGRAM FOR RAFTERS BACK COVER This title requires a Digital Codes Premium subscription to access contents and features. From the Span Tables landing page on an array of 46 tables lists maximum spans for Southern Pine joists and rafters, For each application, a PDF download is available. ![]()
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