[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-268462-105":59,"doc-detail-268462-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","cross-laminated-timber-construction-an-introduction","Cross-laminated timber construction - An introduction","","Cross-laminated timber (CLT) is presented as a structural engineered wood product, outlining its development, materials, and key performance principles. The bulletin explains CLT panel composition (cross-bonded, odd-numbered symmetric layers), thickness ranges, and how laminates determine overall thickness and loadbearing behavior. It also surveys applications including walls, roofs, floors, stairs, room-in-the-roof prefabrication, platform-frame construction, and coupled roof options, with notes on UK and North American adoption and guidance development.",{"@graph":69,"@context":123},[70,84,106],{"@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":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/cross-laminated-timber-construction-an-introduction/268462/",{"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/cross-laminated-timber-construction-an-introduction/268462.png","ImageObject",300,407,{"name":92,"@type":93},"Jiven","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",16,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is cross-laminated timber (CLT) and how is it constructed?","Question",{"text":113,"@type":114},"CLT is an engineered wood panel product made from not less than three cross-bonded timber layers. The layers are strength graded to BS EN 14081-1:2005, glued under full-area pressing, and arranged symmetrically with adjacent grain directions at right angles.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What are common CLT panel thickness ranges and layer arrangements?",{"text":118,"@type":114},"Typical CLT panel thicknesses commonly fall in the 80–200mm range. CLT panels have an odd number of layers (3, 5, 7, 9), with differing layer thicknesses possible, arranged symmetrically around a middle layer.",{"name":120,"@type":111,"acceptedAnswer":121},"What building applications and structural configurations are described for CLT?",{"text":122,"@type":114},"CLT panels can form walls, roofs, floors, and stairs, supporting insulated and clad building envelopes. The bulletin also covers room-in-the-roof prefabrication, coupled roof concepts, and platform-frame construction where floor panels create a platform for the next storey wall erection.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},268462,1789431503,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"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":130,"read_time":46,"preview_page_count":4},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","11  \nSTRUCTURAL TIMBER  \nENGINEERING BULLETIN  \nCross-laminated timber constructionan introduction  \nIntroduction  \nIn Timber Engineering Bulletin No. 2, the engineered wood product known as cross-laminated timber (CLT) is introduced. This article provides a more detailed introduction to the applications and use of CLT as a structural timber product.  \nSubsequent bulletins (Nos. 12 and 13) will provide information on the manufacture, detailing and erection of CLT and detailed advice on the structural design of CLT based on the latest knowledge and experience.  \nFigure 1  \nSpan and height capabilities of mainstream structural materials in standard design.  \nHistory of CLT use  \nCLT is an engineered wood panel product that was developed in Europe in the 1970s and has been in continuous development ever since, particularly in Austria and Germany. CLT is a form of large volume wood panel construction. Table 1 indicates some typical characteristics of different forms of large-volume engineered wood panel products.  \nLarge-volume timber structures, such as CLT, are a natural choice of construction where low-embodied-carbon materials are required for where the aesthetic requirements for a dimensionally stable exposed timber finish are required. CLT construction has also been used to extend the feasible height range for timber-framed building structures (Table 2 and Figure 1) and to provide shear walls in open plan timber frame structures.  \nCLT is currently imported into the UK from mainland Europe but, as the UK market develops, a UK plant producing CLT from local timbers may become commercially viable. Some feasibility and research work has already been undertaken on CLT manufactured in the UK from Scottish-grown Sitka spruce.  \nThe use of CLT for structural applications in North America is also rapidly expanding with the publication of a number of harmonised standards and design guides. There is currently no equivalent design guide in the UK, but TRADA is in the process of developing design and specification guidance to support the UK design industry.  \nOverview of CLT  \nCLT panels consist of not less than three cross-bonded layers of timber typically ranging in thickness between 20mm and 45mm. The timber is strength graded to BS EN 14081-1:2005 and glued together in a press, which applies pressure over the entire surface area of the panel.  \nCLT panels have an odd number of layers (3, 5, 7, 9) which may be of differing thicknesses; layers are arranged symmetrically around the middle layer with adjacent layers having their grain direction at right angles to one another (Figures 2 and 3) .  \nThe overall thickness, as well as the loadbearing performance of the composite panel, is determined by the build-up of the individual laminates. Commonly used CLT panel thicknesses are in the range of 80–200mm.  \n[www.structuraltimber.co.uk](www.structuraltimber.co.uk)  \nREV 0-03.12.15/EB011  \n11  \nSTRUCTURAL TIMBER  \nENGINEERING BULLETIN  \nFigure 2  \nCLT panel configuration  \nApplications of CLT  \nCLT is manufactured into solid wood panels which are used as walls, roofs, floors and even stairs. The building envelope can be insulated and clad with other materials such as timber, brick, render or composite panels.  \nCLT timber structures of eight storeys have already been constructed in the UK. Current knowledge supports up to 12-storey designs, but the feasibility of building a timber structure up to 30 storeys tall using CLT has been investigated and a number of engineers around the world are currently investigating the use of CLT for taller structures. Table 2 shows approximate span and height capabilities of the mainstream structural materials. Figure 1 shows how CLT extends the potential for timber in structures previously only possible using other materials.  \nStructural configurations  \nCLT panels can be used for a number of different applications (Table 3) . It may also be possible to use CLT panels as pre-insulated wall and roof cassett","cbCaicdfxOnaOLnO","https://ap.wps.com/l/cbCaicdfxOnaOLnO","pdf",508517,"English","# Introduction\n## History of CLT use\n## Overview of CLT\n## Applications of CLT\n## Structural configurations\n## Platform-frame construction","[{\"question\":\"What is cross-laminated timber (CLT) and how is it constructed?\",\"answer\":\"CLT is an engineered wood panel product made from not less than three cross-bonded timber layers. The layers are strength graded to BS EN 14081-1:2005, glued under full-area pressing, and arranged symmetrically with adjacent grain directions at right angles.\"},{\"question\":\"What are common CLT panel thickness ranges and layer arrangements?\",\"answer\":\"Typical CLT panel thicknesses commonly fall in the 80–200mm range. CLT panels have an odd number of layers (3, 5, 7, 9), with differing layer thicknesses possible, arranged symmetrically around a middle layer.\"},{\"question\":\"What building applications and structural configurations are described for CLT?\",\"answer\":\"CLT panels can form walls, roofs, floors, and stairs, supporting insulated and clad building envelopes. The bulletin also covers room-in-the-roof prefabrication, coupled roof concepts, and platform-frame construction where floor panels create a platform for the next storey wall erection.\"}]","Cross-laminated timber construction - An introduction | PDF"]