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The scaffolding reference work: the rules, the load classes, the erection and the safety — explained so it can be used on site.
Become a scaffolderGet started · 5 minThe scaffolder builds the workplace that every other tradesperson stands on. It's a trade with fresh air, good camaraderie within the crew and a low barrier to getting started — and at the same time a trade with responsibility, because safety rests on the scaffold being erected correctly. Here's why you should consider it.Types of scaffoldSystems · 12 minThere isn't one scaffold, but a handful of systems, each solving its own task. The choice depends on the shape of the building, how high you need to go, how much has to be carried, and how quickly it has to happen. Here are the types you'll meet in practice — and when to choose which.Load classes & width classesStandards & rules · 12 minHow much may a scaffold deck carry, and how wide must it be? This is determined by two things from the standard DS/EN 12811-1: the load class, which sets the permitted weight per m², and the width class, which sets the deck's width. Here are both tables — and how to choose correctly for the task.What is a scaffold?Get started · 5 minA scaffold is a temporary structure that provides safe access and a safe working platform at height. Here are the main components, the uses — and why the field is so heavily regulated.The Working Environment Authority rules for scaffoldingStandards & rules · 7 minThe Danish regulatory basis for scaffolding: the construction-site order, the rules on technical aids and the Danish Working Environment Authority's guidelines — plus the responsibilities of the employer and the erector.Components and terminologySystems · 7 minThe individual parts of the scaffold with the correct Danish trade terms: standards/spigots, ledgers and transoms, diagonal braces, platforms, brackets, base jacks and ties — and what each of them does.Erection and dismantling step by stepMethod · 7 minThe safe sequence for erecting and dismantling a system scaffold within the supplier's instructions — from the base and base jacks to progressive ties, guardrails and dismantling in reverse order.Fall protection and personal protective equipmentSafety · 6 minThe order of priority between collective and personal fall protection when working at height, and the requirements for the equipment. As a rule, protection against falls is required for falls of more than 2 metres.Guardrail, toe board and distance to the facadeSafety & requirements · 6 minThe requirements for how the guardrail is built up (handrail, mid-rail, toe board), when an inner guardrail is required, and how large the gap between deck and façade may be.Anchoring and wall tiesMethod & safety · 6 minThe function of the anchoring, the types of wall tie, and how the anchoring force and pattern depend on the sheeting, height and load — and why netting and tarpaulin increase the forces significantly.Access routes: stairs and laddersSafety & requirements · 5 minThe requirements for access routes on and to the scaffold — stairs, ladders and internal ascent via hatch decks — so you can get safely up and down throughout the period of use.Wind and weather — sheeting with tarpaulin and nettingMethod & safety · 6 minHow sheeting with netting or tarpaulin increases the wind load and thereby the anchoring forces, when winter sheeting is required, and why stability must be recalculated when the sheeting changes.Inspection and signageOperation & maintenance · 5 minSignage on scaffolds over 2 metres and ongoing inspection: what a green (ready for use) and a red (out of service) sign mean, what the sign must state, and when inspection is required.Responsibility and roles on siteStandards & responsibility · 5 minWho is responsible for the scaffold being safely set up and used? From the scaffold erector and the supplier to the user's employer and the client.Training as a scaffolderTraining & requirements · 6 minThe statutory training requirements for erecting scaffolding and the available course paths — correcting the widespread ‘3-day’ misconception: the system-scaffolding course is 15 days.The new AT guidance on building and construction work (2025/2026)Standards & rules · 7 minFrom 15 December 2025 and 1 January 2026 a new consolidated AT guidance on construction work came into force. It replaces among other things the old AT guidance B.3.2 on the installation and use of scaffolding. Here is what you as a scaffold erector need to know about the changes.Partial-area load and heavy load classesStandards & rules · 7 minHeavy load classes (4–6) allow for an elevated partial area that can bear much more than the evenly distributed load suggests. But there is a formula for it — and you need to know it not to overload or underestimate the scaffold. Here is the principle with a worked example.Material control and rejectionOperation & maintenance · 6 minEach individual scaffolding component carries its part of the overall construction. A cracked column, a deformed beam or a half-eaten scaffold board can cost lives. Here are the criteria for discarding components — and the culture for doing it consistently.The craft's history.The craft's history. · 7 minScaffolding is not a new phenomenon. For as long as building has taken place at heights, craftspeople have needed a temporary platform to work from. In recent times, the Danish scaffolding trade has moved from a loosely defined craft practice — loose pipes, boards and couplings assembled according to experience — to a regulated trade with European standards, legally required training and documented inspections. This article focuses on the development we can document; older, local guild rules are mentioned only generically, because they are difficult to verify.Rullestillads og mobile arbejdstårneSystems · 8 minRullestilladset er en af de mest brugte — og oftest fejlbrugte — stilladstyper. Det har sin egen standard (DS/EN 1004), egne typiske højdegrænser (inde ca. 12 m, ude ca. 8 m, leverandørafhængigt), krav om udriggere og ballast, låste hjul og et absolut forbud mod at flytte tårnet med folk eller materialer på. Rulle- og bukkestillads har desuden sit eget AMU-kursus (45566).Arbejde nær elektriske luftledningerSafety · 7 minStilladser rejses ofte tæt på luftledninger, og berøring eller overslag er en klassisk dødsulykke i faget. Ved højspænding kan strømmen springe gennem luften uden berøring, og lange ledende stålrør gør stilladsarbejdet særligt udsat. Den nødvendige afstand vokser med spændingen — de konkrete meter fås fra netselskabet, aldrig ved gæt.Ergonomics and heavy lifting.Safety · 8 minStilladsarbejde er et af de mest fysisk belastende byggefag. Manuel håndtering er lovreguleret (BEK om manuel håndtering + AT-vejledning D.3.1), og det er kombinationen af vægt og afstand fra kroppen, der afgør belastningen. Her er løfteteknik, hjælpemidler og organisering, der beskytter kroppen gennem et helt arbejdsliv.Vind- og vejrgrænser for opstilling og brugMethod & safety · 8 minVind afgør, hvornår montage og brug skal indstilles. Standarden skelner mellem arbejds- og ude-af-drift-tilstand, og at et stillads kan overleve en storm ubemandet betyder ikke, at man må arbejde på det. Montage indstilles typisk omkring 6 Beaufort (leverandørafhængigt) — plus stormsikring, eftersyn efter vind og hensyn til is, sne og kulde.SpecialstilladserSystems · 8 minUd over facade- og systemstillads findes en familie af specialstilladser: ophængte stilladser, fritstående trappetårne, tag-/vejroverdækninger (wetterschutz) med stor vind- og opdriftslast, og understøtningsstilladser, der bærer lodret last. Fælles for dem er, at de falder uden for standardopstillingen og kræver særskilt projektering efter DS/EN 12811-1.Fundering, bæreevne og gitterdragereMethod & safety · 8 minEt stillads er kun så stærkt som det, det står på. Al last samles i søjlerne og føres via fodspindler ned i et lille areal — for højt fladetryk får foden til at synke, og det er en hyppig væltårsag. Her er lastnedføring, underlagets bæreevne, spredeplader og syld, fodspindler og hvordan man spænder over porte med gitterdragere.Kvalitetssikring og stilladsdokumentationOperation & maintenance · 8 minEt stillads er først færdigt, når det står OG kan dokumenteres. Kvalitetssikring binder opstillingstegning/montageplan, standardopstilling vs. individuel statisk dokumentation, komponentmærkning, skiltning, eftersynsjournal og D&V-mappe sammen til ét sammenhængende arbejdsflow — så stilladset ikke bare er bygget rigtigt, men kan bevises rigtigt.