[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-565102-105":53,"doc-detail-565102-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","span-tables-for-joists-and-rafters-2024-edition-american-softwood-lumber-standard-ps-20-20-sizes-updates-and-errata","Span Tables for Joists and Rafters - 2024 Edition - American Softwood Lumber Standard (PS 20-20) Sizes - Updates and Errata","","Span Tables for Joists and Rafters (2024 Edition) provides size and loading span reference data aligned with the American Softwood Lumber Standard (PS 20-20). It includes updates and errata and clarifies accuracy precautions, technical inquiries, and liability statements for users. The table listings organize structural guidance by member type—floor joists, ceiling joists, and rafters—then further segment results by deflection limits (L/360, L/240, L/180) and varying live load and dead load combinations.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/span-tables-for-joists-and-rafters-2024-edition-american-softwood-lumber-standard-ps-20-20-sizes-updates-and-errata/565102/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/span-tables-for-joists-and-rafters-2024-edition-american-softwood-lumber-standard-ps-20-20-sizes-updates-and-errata/565102.png","ImageObject",442,249,{"name":88,"@type":89},"Fahsai","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-22","2026-10-12",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",8,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What document standard and edition does this span table reference?","Question",{"text":109,"@type":110},"It is the 2024 Edition associated with the American Softwood Lumber Standard (PS 20-20).","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How are the span results organized in the document?",{"text":114,"@type":110},"The contents are organized by structural member type (floor joists, ceiling joists, rafters) and by deflection limit tiers such as L/360, L/240, and L/180, with live-load and dead-load combinations listed in tables.",{"name":116,"@type":107,"acceptedAnswer":117},"Where are updates or errata provided?",{"text":118,"@type":110},"Updates or errata are posted to the American Wood Council website at www.awc.org.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},565102,1792116704,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":136,"language":137,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":138,"faqs":139,"seo_title":140,"seo_description":61,"update_tm":141,"read_time":40},549768702563,"https://ap-avatar.wpscdn.com/avatar/8000c4aa63b76e948b?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786536092046926083","SPAn tAbLeS FOR  \nJOIStS AnD RAFteRS  \n2024 eDItIOn  \nAmerican Softwood Lumber Standard (PS 20-20) Sizes  \nUpdates and Errata  \nWhile every precaution has been taken to ensure the accuracy of this document, errors may have occurred during development.  \nUpdates or Errata are posted to the American Wood Council website [at www.awc.org](at www.awc.org).  \nTechnical inquiries may be addressed to [info@awc.org](info@awc.org).  \nThe American Wood Council (AWC) is the voice of North American traditional and engineered wood products. From a renewable resource that absorbs and sequesters carbon, the wood products industry makes products that are essential to everyday life. AWC’s engineers, technologists, scientists, and building code experts develop state-of-the-art engineering data, technology, and standards on structural wood products for use by design professionals, building officials, and wood products manufacturers to assure the safe and efficient design and use of wood structural components.  \nSPAn tAbLeS FOR  \nJOIStS AnD RAFteRS  \n2024 eDItIOn  \nAmerican Softwood Lumber Standard (PS 20-20) Sizes  \nWhile every effort has been made to insure the accuracy of the information presented, and special effort has been made to assure that the information reflects the state-ofthe-art, neither the American Wood Council nor its members assume any responsibility for any particular design prepared from this publication. Those using this document assume all liability from its use.  \nCopyright © 2023 American Wood Council  \n[info@awc.org](info@awc.org)  \n[www.awc.org](www.awc.org)  \ntAbLe OF COntentS  \nTable  \nNo. Description of Tables Page Explanation of Tables ...................................................................................................................................... 1  \nFLOOR JOISTS WITH L/360 DEFLECTION LIMITS  \nF-1 Live Load of 30 psf plus dead load of 10 psf.......................................................................................................... 4  \nF-2 Live Load of 40 psf plus dead load of 10 psf.......................................................................................................... 5  \nF-3 Live Load of 50 psf plus dead load of 10 psf ......................................................................................................... 6  \nF-4 Live Load of 60 psf plus dead load of 10 psf ......................................................................................................... 7  \nF-5 Live Load of 40 psf plus dead load of 20 psf ......................................................................................................... 8  \nF-6 Live Load of 50 psf plus dead load of 20 psf ......................................................................................................... 9  \nF-7 Live Load of 60 psf plus dead load of 20 psf ....................................................................................................... 10  \nCEILING JOISTS WITH L/240 DEFLECTION LIMITS  \nC-1 Live Load of 10 psf plus dead load of 5 psf ......................................................................................................... 11  \nC-2 Live Load of 20 psf plus dead load of 10 psf ....................................................................................................... 12  \nRAFTERS WITH L/240 DEFLECTION LIMITS  \nR-1 Live Load of 20 psf plus dead load of 10 psf ....................................................................................................... 13  \nR-2 Live Load of 30 psf plus dead load of 10 psf ....................................................................................................... 14  \nR-3 Live Load of 40 psf plus dead load of 10 psf ....................................................................................................... 15  \nR-4 Live Load of 50 psf plus dead load of 10 psf ....................................................................................................... 16 ","cbCaihpoHzME4Wh3","https://ap.wps.com/l/cbCaihpoHzME4Wh3","pdf",1182758,52,"English","# Table of Contents\n## Explanation of Tables\n## Floor Joists with L/360 Deflection Limits\n## Ceiling Joists with L/240 Deflection Limits\n## Rafters with L/240 Deflection Limits\n## Rafters with L/180 Deflection Limits","[{\"question\":\"What document standard and edition does this span table reference?\",\"answer\":\"It is the 2024 Edition associated with the American Softwood Lumber Standard (PS 20-20).\"},{\"question\":\"How are the span results organized in the document?\",\"answer\":\"The contents are organized by structural member type (floor joists, ceiling joists, rafters) and by deflection limit tiers such as L/360, L/240, and L/180, with live-load and dead-load combinations listed in tables.\"},{\"question\":\"Where are updates or errata provided?\",\"answer\":\"Updates or errata are posted to the American Wood Council website at www.awc.org.\"}]","Span Tables for Joists and Rafters - 2024 Edition - American Softwood Lumber Standard (PS 20-20) Sizes - Updates and Errata | PDF",1791846640]