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It explains the system’s introduction and development, how MiTek’s connector plates and engineered support fit into a licensed fabricator network, and the role of software and design office technical assistance. The manual covers design information, terminology, roof shapes and truss types, plus guidance for camber, overhangs, heel height, and other key design and selection topics.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/gang-nail-roof-truss-system-residential-manual-march-2024/650210/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/gang-nail-roof-truss-system-residential-manual-march-2024/650210.png","ImageObject",300,407,{"name":92,"@type":93},"How to eat","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-10","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the GANG-NAIL Timber Connector System used for?","Question",{"text":112,"@type":113},"It is used to prefabricate roof trusses and other structural timber components by pressing toothed steel connector plates into timber so elements can be joined quickly and effectively.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What role does MiTek play in the GANG-NAIL system?",{"text":117,"@type":113},"MiTek manufactures the steel connector plates and ancillary items and provides engineered, tested designs and technical support to accredited MiTek Fabricators through software tools and a design office.",{"name":119,"@type":110,"acceptedAnswer":120},"Why are prefabricated GANG-NAIL roof and floor trusses advantageous?",{"text":121,"@type":113},"They provide design flexibility with guaranteed strength, improved cost control, factory quality control, and efficient use of timber strength across different roof shapes and loading conditions.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650210,1793030301,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},962093541613,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","March 2024  \nGANG-NAIL® ROOF TRUSS SYSTEM Residential Manual  \nGANG-NAIL Roof Truss Systems are available only from  \naccredited MiTek Fabricators throughout New Zealand  \nRefer to the MiTek New Zealand website for up-to-date GANG-NAIL Roof Truss System information and accredited MiTek Fabricators  \n[www.miteknz.co.nz](www.miteknz.co.nz)  \n© Copyright 2024 MiTek Inc. All rights reserved including the right to reproduce this publication or portions thereof in any form whatsoever.  \nContents  \nIntroduction 2  \nHistory of GANG-NAIL Trusses  2  \nWhere MiTek fits in   3  \nAdvantages of GANG-NAIL Roof and Floor Trusses  3  \nGANG-NAIL Connectors  4  \nDesign Information   5  \nTerminology   6  \nRoof Shape  6  \nTruss Types and Coding  8  \nCamber  10  \nOverhang  10  \nHeel Height  11  \nBirdsmouth   11  \nSpan  11  \nLow Pitch Trusses  11  \nOver Height Trusses   13  \nRestraining Truss Chords  13  \nRequirements for Attic Trusses   13  \nSelection Charts   14  \nCove or Vaulted Truss Selection Chart  14  \nHip End Selection Chart  15  \nTruss Layouts   16  \nAttic Trusses  18  \nAttic Truss Coding   18  \nDesign Criteria  18  \nOverhangs  18  \nModifications for Stairs   18  \nFloor Details – 1.5kPa Live Load  19  \nDefinition   19  \nFloor Joists   19  \nAttic Truss Selection Table for 45º Roof Pitch  20  \nDormers  21  \nConstruction Details   22  \nGlossary 23  \n1  \n© Copyright 2024 MiTek Inc. All rights reserved.  \nIntroduction  \nHistory of GANG-NAIL Trusses  \nThe GANG-NAIL Timber Connector System was introduced into New Zealand in the 1960’s.  \nThe system revolutionised house construction by prefabricating roof trusses, eliminating the need for expensive on-site “stick construction”. Light, efficient timber trusses are factory manufactured using the GANG-NAIL toothed metal plate connector, enabling quicker construction schedules, better quality control and reduced construction cost.  \nWall frames, portal frames, floor trusses ( PosiSTRUT™) , structural GANGLAM beams and FLITCH Beams are also prefabricated using the GANG-NAIL System.  \nThe GANG-NAIL System allows the principles of structural engineering to be applied to house building. The science of timber engineering came of age on the introduction of the GANGNAIL System.  \nThe GANG-NAIL Truss System is based on the GANG-NAIL Timber Connector, which is a steel plate with multiple spikes or teeth projecting from one face. The connectors are pressed into the timber using hydraulic, pneumatic or roller presses, causing the teeth to embed in the timber. Timber elements can be joined together with ease to make trusses and other structural timber components.  \nThe ease of installation and effectiveness as a timber connector make GANG-NAIL Connectors ideal for the prefabrication industry where speed and reliability are paramount. The name “GANG-NAIL Truss” has now become synonymous with quality prefabricated timber roof trusses.  \nGANG-NAIL is a registered trade name of MiTek New Zealand Limited.  \n2  \n© Copyright 2024 MiTek Inc. All rights reserved.  \nWhere MiTek fits in  \nMiTek New Zealand Limited is the ‘Home of GANG-NAIL Building Systems’. We do not manufacture trusses. We manufacture the steel connector plates and ancillary items that are supplied to a select national network of licensed truss fabricators. Each of these companies has been licensed as an accredited MiTek Fabricator because of their high standards of manufacture and for their professionalism within the building components industry.  \nThe supply of connectors is only a small part of MiTek’s activities. It is the technical support provided to accredited MiTek Fabricators, which is the true strength of the GANG-NAIL System.  \nTechnical support starts with supply of engineered and tested connector plate design and includes MiTek’s commitment to research and development both within New Zealand and internationally.  \nMiTek has further revolutionised the industry with the MiTek 20/20 ™ and Sapphire™ software. These leading-edge software programs h","cbCaipeE9pSS6qcx","https://ap.wps.com/l/cbCaipeE9pSS6qcx","pdf",1480516,25,"English","# Introduction\n## History of GANG-NAIL Trusses\n## Where MiTek fits in\n# Advantages of GANG-NAIL Roof and Floor Trusses\n## GANG-NAIL Connectors\n## Design Information\n# Terminology\n## Roof Shape\n## Truss Types and Coding\n## Camber\n## Overhang\n## Heel Height\n## Birdsmouth\n## Span\n## Low Pitch Trusses\n## Over Height Trusses\n## Restraining Truss Chords\n## Requirements for Attic Trusses\n# Selection Charts\n## Cove or Vaulted Truss Selection Chart\n## Hip End Selection Chart\n## Truss Layouts\n## Attic Trusses\n## Attic Truss Coding\n## Design Criteria\n## Modifications for Stairs\n## Floor Details – 1.5kPa Live Load\n## Floor Joists\n## Attic Truss Selection Table for 45º Roof Pitch\n## Dormers\n## Construction Details\n# Glossary","[{\"question\":\"What is the GANG-NAIL Timber Connector System used for?\",\"answer\":\"It is used to prefabricate roof trusses and other structural timber components by pressing toothed steel connector plates into timber so elements can be joined quickly and effectively.\"},{\"question\":\"What role does MiTek play in the GANG-NAIL system?\",\"answer\":\"MiTek manufactures the steel connector plates and ancillary items and provides engineered, tested designs and technical support to accredited MiTek Fabricators through software tools and a design office.\"},{\"question\":\"Why are prefabricated GANG-NAIL roof and floor trusses advantageous?\",\"answer\":\"They provide design flexibility with guaranteed strength, improved cost control, factory quality control, and efficient use of timber strength across different roof shapes and loading conditions.\"}]","GANG-NAIL Roof Truss System Residential Manual - March 2024 | PDF",1792821330,63]