CLT Toolbox

Adam, Marko & Corey are exhibiting at the IHF Conference in Innsbruk Austria.   Come and say hello if you want to learn more about CLT Toolbox!

Södra är stolta att meddela att vårt korslimmade trä (KL-trä) nu finns tillgängligt på den innovativa mjukvaruplattformen CLT Toolbox!🌲 CLT Toolbox är redan ett pålitligt och använt verktyg i många länder, och med detta partnerskap lanseras det nu på den nordiska marknaden. Södra, som den första partnern, markerar ett betydande steg i vår strävan att främja hållbart byggande med trä. Vårt KL-trä erbjuder starka, hållbara och effektiva konstruktionslösningar som nu tillgängliggörs för fler arkitekter och ingenjörer.  – Vi tror på CLT Toolbox som en värdefull partner och att deras lösning kommer att tillföra stort värde till den nordiska marknaden. Med detta partnerskap vill vi förenkla användningen av KL-trä för designers, och särskilt när de använder KL-trä från Södra, säger Daniel Anderson, chef för byggnadsteknik på Södra Building Systems.  Grattis till oss för detta partnerskap och grattis till er som vill bygga hållbart - nu finns en förenklad arbetsprocess!  👏 Läs mer om partnerskapet via länk i kommentarerna ⬇️

Södra is Now on CLT Toolbox!   More massive news for the Swedish & European Market - Södra, Sweden's largest forest owners' association, has officially joined CLT Toolbox! Founded in 1938, Södra is renowned for its commitment to sustainable forestry and innovative forest products. Beyond forestry, Södra’s expertise extends to wood products, pulp, textile pulp, biofuels, tall oil, electricity, and district heating. Södra has emerged as one of the leaders in cross-laminated timber (CLT) production, championing the adoption of sustainable building materials. Their facility use fossil-free energy generated on-site, producing CLT panels with one of the lowest carbon footprints on the market. Over the course of 2024, we connected with Martin Eveborn & Daniel Anderson. Both of which have been enthusiastic supporters of our vision - with shared passion for driving infrastructure improvements for the industry. With the addition of the Swedish National Annex, Swedish language support, and Södra’s inclusion, it’s now easier than ever for Swedish engineers to design with CLT. We extend our heartfelt thanks to Södra for their collaboration as we work together to empower Swedish engineers to embrace mass timber design.   ----------------------------------------- Södra finns nu på CLT Toolbox!   Goda nyheter för den svenska & europeiska marknaden - Södra, Sveriges största skogsägarförening, har officiellt gått med i CLT Toolbox! Södra grundades som kooperation 1938 och är känt för sitt engagemang för hållbart skogsbruk och innovativa skogsprodukter. Utöver skogsbruket sträcker sig Södras uppdrag och kompetens till produktion av träprodukter, massa, textilmassa, biobränslen, tallolja, el och fjärrvärme. Södra har vuxit fram som en av de ledande inom produktion av korslimmat trä (KL-trä) och kämpar för införandet av hållbara byggmaterial. Deras anläggning använder fossilfri energi som genereras på plats, och de producerar paneler i KL-trä med ett av de lägsta koldioxidavtrycken på marknaden. Under 2024 fick vi kontakt med Martin Eveborn & Daniel Anderson. Båda har varit entusiastiska anhängare av vår vision - med passion för att driva på förbättringar av infrastrukturen för branschen. Med tillägget av den - svenska nationella bilagan, svenskt språkstöd och Södras inkludering är det nu enklare än någonsin för svenska ingenjörer att designa med KL-trä. Vi riktar vårt hjärtliga tack till Södra för deras samarbete, vi arbetar tillsammans för att ge svenska ingenjörer möjlighet att ta till sig design i massivträ. 

We've Launched 9 National Annexes onto CLT Toolbox 🚀. These are now in a brand new Floor Calculator! This calculator is by far the most popular on our platform and the one most engineers begins with.   For the past 6 months, we’ve been completely overhauling it to add some incredible new features. A major upgrade on the new calculator is that you can now flexibly choose between 9 National Annexes.   These include: BS EN (England): Users can select Equation 6.10 or Equations 6.10a and 6.10b for action combinations, and use Ψ1,1 for the main variable in accidental combinations. DK EN (Denmark): Action combinations are based on equations 6.10a and 6.10b by considering the effect of the consequence class of the system. Additionally, the level of checking options is used that influence the partial factor for the material, the phi (Ψ) factors for snow and wind loads are influenced by the mutual occurrence of variable loads, and use Ψ1,1 for the main variable in accidental (fire) combinations. DIN EN (Germany): Action combinations are based on equation 6.10, and use Ψ2,1 for the main variable in accidental combinations. SS EN (Sweden): Action combinations are based on equations 6.10a and 6.10b, and include a reliability class system that establishes partial safety coefficients for load combinations based on structural reliability. It also modifies snow load psi (Ψ) factors based on user-defined snow loads rather than altitude and uses Ψ1,1 for the main variable in accidental (fire) combinations. NEN EN (Netherlands): Uses equations 6.10a and 6.10b for action combinations and Ψ1,1 for the main variable in accidental (fire) combinations. NF EN (France): Action combinations are based on equation 6.10, and use Ψ1,1 for the main variable in accidental combinations. UNE EN (Spain): Action combinations are based on the EN 1990:2002 and the user has the option to select either Equation 6.10 or Equations 6.10a and 6.10b and Ψ2,1 for the main variable in accidental (fire) combinations. UNI EN (Italy): Uses equations 6.10a and 6.10b for action combinations and Ψ2,1 for the main variable in accidental (fire) combinations. SFS EN (Finland): Action combinations are based on equations 6.10a and 6.10b, including a consequence class option for determining partial safety coefficients, snow load psi factors depend on the user input snow load values, and Ψ2,1 for the main variable in accidental (fire) combinations.   We’ll be sharing more about the Floor Calculator in the coming days, but if you’re curious, head over to CLT Toolbox and check it out. The Floor Calculator is free to use today! #masstimber #structuralengineering

We've made a comparison between between the current Eurocode, proposed Draft Eurocode & Supplier ETAs for laterally loaded screws.   In CLT Toolbox, we enable all three methods when designing your screws. But what is the difference?    Lateral Capacity of Screws - All methods are governed by six failure modes in Johanson’s equations. - Both EN 1995:2004 and prEN 1995:2023 calculate characteristic lateral capacities similarly, but supplier-specific ETAs may refine embedment strength calculations.   Rope Effect Contribution - EN 1995:2004 and prEN 1995:2023 allow a rope effect of up to 25% of withdrawal capacity, effectively doubling lateral capacity under certain conditions. - ETAs provide specific withdrawal capacity equations for accurate application.   Geometry Requirements - Both standards specify spacing, edge, and end distances based on nominal diameters. - prEN 1995:2023 introduces considerations for inclined screws, with edge and end distances measured from the screw’s center of gravity. - Supplier ETAs offer tailored recommendations for optimal geometry in unique scenarios.   If you want to check out the differences in methods in your designs you can check them out in the CLT Toolbox app! #clttoolbox #structuraldesign #masstimber

When selecting a screw, there are things beyond the strength capacities that need to be considered. These include an understanding of head and thread type, material and applicable service class, tip type, specific application or notes about the screw from the supplier. Previously this information is best found through going through lots of PDF resources, catalogues and technical sheets from each supplier and then manually integrating it with the spreadsheets. Now, this information is at your fingertips when you perform your screw designs with the CLT Toolbox more information dropdowns. These screw calculators are free for the month of November – check them out on the app! #screwdesign #masstimber

Mass timber connection design just got a whole lot easier. With the new axially loaded screw calculator you can compare results between supplier databases, choose their ETAs, current Eurocode & draft Eurocode, or AS1720.1 in seconds. The software has educational features so you can learn just as you design. This calculator is one of six calculators released this week & all are free to use for the month of November. You can go and check it out by signing up to the app! #masstimber #connectionsdesign #sustainability #structuraldesign

CLT Toolbox Version 2.0.7 is now live, with another MAJOR screw release. Key Features of this release include: Grain-Specific Modules: Select Side or End Grain design modules aligned with the application type. New Eurocode 5 Design Code: Now supporting the latest Eurocode 5 (prEN1995-1-1:2023). Slip Module Calculations: Each connection module includes slip module computations, accounting for materials, fastener types, and specific supplier ETAs. Screw More Information: Access detailed screw supplier data, product families, and specs directly in the app. These are now implemented across six new connection modules including: - Axially Loaded Side Grain - Axially Loaded End Grain - Laterally Loaded Timber-to-Timber Side Grain - Laterally Loaded Timber-to-Timber End Grain - Laterally Loaded Steel-to-Timber Side Grain - Laterally Loaded Steel-to-Timber End Grain Best of all we're just getting started on our screw design roadmap! Head to the app to learn more. #masstimber #clttoolbox #connectiondesign

🚀 We've just launched the second version of the GLT Beam Penetration Calculator! 🚀 Designed to streamline even the most complex beam designs, this upgraded tool now supports up to 5 penetrations per beam, whether circular or rectangular. With built-in checks for geometric limitations, tension verification, flexural verification, and shear verification, all technical computations are seamlessly collapsed into one easy-to-use process. Plus, reinforcement geometry and design are automatically verified, simplifying your engineering workflow. With supply chain flexibility you can choose manual input, or products from our GLT supply chain partners including Australian Sustainable Hardwoods (ASH), Cusp, NeXTimber (by Timberlink) or Prolam. With reinforcement choose from our connection supply chain partners including EuroTec GmbH, Rothoblaas,SPAX, SIHGA, Simpson Strong-Tie. You can design confidently with our versatile tool to draft Eurocode (prEN 1995:2023) or AS 1720:2010/NZ WDG Ch12.6. Simplifying even the most complex beam designs, this update overlays detailed design checks with the flexibility to choose between manual input or your preferred supplier. #massTimber #structuralengineering #glulamtimber #sustainableconstruction #beamdesign #clttoolbox

For the first time the founding team of CLT Toolbox came together. Adam and Ringo from Australia, Ikhsan from Indonesia and Lelissie from Ethiopia. The week was full of highlights including beach visits, temple visits, Humvees through Javanese villages and ironing out our software processes. We’re culturally diverse & share the same toolbox spirit! Importantly, we also share the same "Girum pose" which is a blend of the shaka from Australia & a slight body lean to the right from Ethiopia. #clttoolbox #teambuilding