IStructE bamboo manual: design, durability and fire notes for structural engineers
Reviewed by Joe Ashwell
First reported on The Construction Index
30 Second Briefing
IStructE has released the Manual for the design of bamboo structures to ISO 22156:2021, a 10‑chapter structural engineering guide covering grading and mechanical properties, seismic and wind design, shear walls, durability and connection design for permanent bamboo buildings up to two storeys. Authored by INBAR Bamboo Construction Task Force members David Trujillo, Kent Harries, Sebastian Kaminski and Luis Felipe Lopez, the manual addresses bamboo supply chains and project management from sourcing through to detailed design. The publication formalises design provisions including fire considerations, aiming to make engineered bamboo a credible low‑carbon option in mainstream practice.
Technical Brief
- Manual explicitly excludes scaffolding and limits permanent bamboo structures to two storeys for fire safety.
- Safety scope spans full project lifecycle: from bamboo sourcing and grading through to detailing and durability design.
- Case studies in the manual provide worked examples of safe structural use, including connection and shear wall behaviour.
Our Take
Within the 24 Materials stories in our database, bamboo and other bio-based structural materials remain outliers, so formal guidance from the Institution of Structural Engineers and partners like Arup effectively benchmarks an emerging material class against more established steel and concrete standards.
The explicit two-storey limit tied to fire concerns signals that, for now, bamboo is likely to see codified use mainly in low-rise housing and community structures, which could be significant for organisations such as Base Bahay Foundation working in hazard-prone or low-income regions.
Having UK- and US-based institutions such as the University of Warwick and the University of Pittsburgh front and centre in this safety-tagged manual may help regulators in Europe and North America treat bamboo design methods as transferable, rather than confined to regions like Colombia or Hong Kong where informal practice is already common.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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