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The specification defines related sections, required submittals, fabrication/installer qualifications, welding qualifications, structural calculations, and code-referenced material and publication standards.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/template/","Template",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/template/general/","General",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/template/section-05-51-00-metal-stairs/177777/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/section-05-51-00-metal-stairs/177777.png","ImageObject",442,249,{"name":42,"@type":43},"Himbo","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/vnd.openxmlformats-officedocument.wordprocessingml.document","2026-10-04","2026-09-02",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",7,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What types of steel stairs and riser configurations are included?","Question",{"text":63,"@type":64},"The section specifies steel stairs with railings, including closed riser stairs with concrete-filled treads and platforms, and industrial stairs that use closed or open riser types.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What OSHA and design requirements apply to industrial stair angle and use?",{"text":68,"@type":64},"Industrial stairs must comply with OSHA fixed industrial stair requirements, and when used to service equipment the stair angle must be 50 degrees or less to the horizontal.",{"name":70,"@type":61,"acceptedAnswer":71},"What qualifications and calculations are required for quality assurance?",{"text":72,"@type":64},"The fabricator and installer must each have at least three years of experience, and structurally prepared calculations must be signed and sealed by a Professional Engineer registered in the project state. Welding procedures and personnel must qualify per AWS D1.1/D1.1M and AWS D1.3/D1.3M.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},177777,1788329145,{"code":4,"msg":82,"data":83},"success",[84,89,94,99,104,109,114,119,124],{"id":85,"doc_module":22,"doc_module_name":25,"category_name":86,"show_sort_weight":87,"slug":88},11,"Presentations",90,"presentations",{"id":90,"doc_module":22,"doc_module_name":25,"category_name":91,"show_sort_weight":92,"slug":93},12,"Resumes",80,"resumes",{"id":95,"doc_module":22,"doc_module_name":25,"category_name":96,"show_sort_weight":97,"slug":98},14,"Invoices",70,"invoices",{"id":100,"doc_module":22,"doc_module_name":25,"category_name":101,"show_sort_weight":102,"slug":103},15,"Posters",60,"posters",{"id":105,"doc_module":22,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},16,"Social Media",50,"social-media",{"id":110,"doc_module":22,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},17,"Forms",40,"forms",{"id":115,"doc_module":22,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},18,"Letters",30,"letters",{"id":120,"doc_module":22,"doc_module_name":25,"category_name":121,"show_sort_weight":122,"slug":123},21,"Paper Templates",5,"papers-templates",{"id":125,"doc_module":22,"doc_module_name":25,"category_name":29,"show_sort_weight":4,"slug":126},158,"general-158",{"code":4,"msg":82,"data":128},{"doc_id":79,"user_id":129,"nickname":42,"user_avatar":130,"doc_module":22,"category_id":125,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":136,"language":137,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":138,"faqs":139,"seo_title":140,"seo_description":12,"update_tm":80,"read_time":30},687197100911,"https://ap-avatar.wpscdn.com/avatar/a000239b6f1da00475?x-image-process=image/resize,m_fixed,w_180,h_180&k=1785132997149421697","SECTION 05 51 00\u000bMETAL STAIRS\nSPEC WRITER NOTES:\nDelete between //   // if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs.\nOccupational Safety and Health Administration (OSHA) requires a stair to areas where a mechanic must go up or down different levels to service equipment.\nUse either open riser or industrial stair to roof where not accessible, to other than building service personnel.\nSee OSHA Section 1910.24, Fixed Industrial stair.\nDesign industrial stair or open riser stairs for maximum angle 50 degrees or less to horizontal when used to service equipment.\nConsider open riser stairs with grate treads on exterior service areas.\nDo not use \"ships ladders\" or spiral stairs.\nGENERAL\nDESCRIPTION\nThis section specifies steel stairs with railings.\nTypes:\nClosed riser stairs with concrete filled treads and platforms.\nIndustrial stairs: Closed // and open // riser stairs.\nRELATED WORK\n//Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS: Sustainable Design Requirements. //\nSection 03 30 00, CAST-IN-PLACE CONCRETE: Concrete fill for treads and platforms.\nSection 05 50 00, METAL FABRICATIONS: Wall handrails and railings for other than steel stairs.\nSUBMITTALS\nSubmit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.\n// Sustainable Design Submittals, as described below:\n// Postconsumer and preconsumer recycled content as specified in PART 2 \u001e PRODUCTS.// //\nShop Drawings: Show design, fabrication details, installation, connections, material, and size of members.\nFabrication qualifications.\nInstaller qualifications.\nCalculations.\nWelding qualifications.\nQUALITY ASSURANCE\nFabricator: A firm with a minimum of three (3) years’ experience in type of work required by this section. Submit fabricator qualifications.\nInstaller: A firm with a minimum of three (3) years’ experience in type of work required by this section. Submit installer qualifications.\nCalculations: Provide professionally prepared calculations and certification of performance of this work, signed and sealed by a Professional Engineer registered in the state where the work is located. Perform structural design of the stair including supports for the metal stair frame.  Indicate how Design Criteria as specified have been incorporated into the design.\nWelding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M and AWS D1.3/D1.3M.\nAPPLICATION PUBLICATIONS\nThe publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by basic designation.\nAmerican Society of Mechanical Engineers (ASME):\nB18.2.1-12\tSquare, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)\nB18.2.3.8M-81(R2005)\tMetric Heavy Lag Screws\nB18.6.1-81(R2008)\tWood Screws (Inch Series)\nB18.6.3-13\tMachine Screws, Tapping Screws, and Metallic Drive Screws (Inch Series)\nB18.6.5M-10\tMetric Thread Forming and Thread Cutting Tapping Screws\nB18.6.7M-10\tMetric Machine Screws\nB18.22M-81(R2010)\tMetric Plain Washers\nB18.21.1-09\tWashers: Helical Spring-Lock, Tooth Lock, and Plain Washer (Inch Series)\nASTM International (ASTM):\nA36/A36M-19\tStructural Steel\nA47/A47M-99e1R2018)\tFerritic Malleable Iron Castings\nA48/A48M-03(R2016)\tGray Iron Castings\nA53/A53M-20\tPipe, Steel, Black and Hot-Dipped Zinc-Coated Welded and Seamless\nA123/A123M-17\tZinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products\nA153/A153M-16a\tZinc Coating (Hot-Dip) on Iron and Steel Hardware\nA307-14e1\tCarbon Steel Bolts, Studs and Threaded Rod 60,000 PSI Tensile Strength\nA653/A653M-20\tSteel Sheet, Zinc Coated (Galvanized) or Zinc Alloy Coated (Galvannealed) by the Hot-Dip Process\nA786/A786M-15\tRolled Steel Floor Plates\nA1008/A1008M-20\tSteel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength, Low-Alloy\nA1011/A1011M-18\tSteel, Sheet and Strip, Strip, Hot-Rolled Carbon, Structural, High-Strength, Low-All","cbCaihioat88nL6H","https://ap.wps.com/l/cbCaihioat88nL6H","docx",33708,8,"English","# General\n## Description\n## Related Work\n## Submittals\n## Quality Assurance\n## Application Publications\n# Products\n## Design Criteria","[{\"question\":\"What types of steel stairs and riser configurations are included?\",\"answer\":\"The section specifies steel stairs with railings, including closed riser stairs with concrete-filled treads and platforms, and industrial stairs that use closed or open riser types.\"},{\"question\":\"What OSHA and design requirements apply to industrial stair angle and use?\",\"answer\":\"Industrial stairs must comply with OSHA fixed industrial stair requirements, and when used to service equipment the stair angle must be 50 degrees or less to the horizontal.\"},{\"question\":\"What qualifications and calculations are required for quality assurance?\",\"answer\":\"The fabricator and installer must each have at least three years of experience, and structurally prepared calculations must be signed and sealed by a Professional Engineer registered in the project state. Welding procedures and personnel must qualify per AWS D1.1/D1.1M and AWS D1.3/D1.3M.\"}]","SECTION 05 51 00 - METAL STAIRS | DOCX"]