Shoring & falsework
Shoring, falsework & design classes.
Shoring scaffolds – falsework, in German Traggerüst – support formwork and structural parts until they can carry themselves. Their safety hinges on the correct design class to EN 12812: A or B (B1/B2).
Basics
What a shoring scaffold does.
A shoring scaffold (falsework / centering) carries the loads of formwork, fresh concrete or structural parts until the structure can support itself. The terms differ by region: falsework is common in British English, shoring in American English – in German the scaffold is called Traggerüst. EN 12812 governs requirements, design and detailing, dividing shoring into two design classes, A and B – class B being split into the sub-classes B1 and B2.
Design classes
Classes A and B (B1, B2) to EN 12812.
| Class | Application | Analysis | Proof / method |
|---|---|---|---|
| A | simple structures (e.g. slabs/beams in housing) | span ≤ 6.0 m, height < 3.50 m, limited cross-sections | no shop drawings required; stability proof only if needed |
| B – B1 | all cases outside class A | full structural analysis | drawings (plan/section), load assumptions, subsoil – simplified design method |
| B – B2 | demanding shoring | full structural analysis | drawings + more rigorous design method than B1 |
Class A covers simple cases (limited spans and heights) and needs no shop drawings. As soon as a criterion is exceeded, class B applies – as B1 or B2, with full structural analysis; the difference lies in the design method used.
From our own projects
Falsework in practice.
Photos from our own falsework projects – from a steel beam propped from below to preparation work with a forklift. More on falsework in German on our specialist site traggerüstbau.de.
Falsework and shoring by scaffolding professionals from northern Germany
Tube-and-clamp scaffolding and falsework – a symbiosis
FAQ
Frequently asked questions
When is design class A sufficient?
For simple structures with a clear span up to 6.0 m, height below 3.50 m and limited cross-sections – then no shop drawings are required.
How do B1 and B2 differ?
Both require full structural analysis with drawings and load assumptions; they differ in the design method applied – B2 being the more rigorous.
Brand values
What our customers relied on.
- “Super fast – site visit, quote and erection within a few days.”
- “Highly professional, reliable and more than friendly in communication.”
- “Flexible and solution-oriented on every site.”
ROHRGERÜSTBAU Pronin · Hamburg, Germany · a reputation as a special-scaffolding specialist, earned over many years.
Sources & standards
Standards information is for general guidance and does not replace professional design. Research date: June 2026.
Please note
A knowledge resource on the craft of scaffolding.
ROHRGERÜSTBAU stood for special and high-end scaffolding since 1949, and from 2021 as ROHRGERÜSTBAU Pronin GmbH (Hamburg). Rohrgerüstbau Pronin GmbH was closed for health reasons. These pages preserve the expertise – as a reference for the trade worldwide.
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