Crotch figure
BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industries. A guide to the use of urban timber (FB 50) was written by Geoff Cooper and published by BRE on 31 July 2012.
The guide defines 'crotch figure', or 'curl figure' as follows:
| Depending on the species and growth habit of the tree, most trees will branch from the main trunk into two or more large limbs from which the crown is formed. If the crown develops through the formation of two main limbs, the junction at which this occurs can generate material with highly decorated figure known as crotch or curl figure. |
| The term figure is usually defined as a pattern, distinctive features or markings which relieve the surface uniformity of a piece of wood. The term is most often used to describe a feature which enhances the attractiveness of a piece of wood. Figure can be produced by a variety of different mechanisms. |
[edit] Related articles on Designing Buildings Wiki
- 11 things you didn't know about wood.
- A guide to the use of urban timber (FB 50).
- Ancient Woodland.
- Birds-eye figure.
- BRE articles on Designing Buildings Wiki.
- Building Research Establishment.
- Burr.
- Carpentry.
- Cat's paw figure.
- European Union Timber Regulation.
- Physical Properties of Wood.
- Spalting.
- The differences between hardwood and softwood.
- Timber preservation.
- Timber vs wood.
- Timber.
- Types of timber.
Featured articles and news
Great British Energy install solar on school and NHS sites
200 schools and 200 NHS sites to get solar systems, as first project of the newly formed government initiative.
600 million for 60,000 more skilled construction workers
Announced by Treasury ahead of the Spring Statement.
The restoration of the novelist’s birthplace in Eastwood.
Life Critical Fire Safety External Wall System LCFS EWS
Breaking down what is meant by this now often used term.
PAC report on the Remediation of Dangerous Cladding
Recommendations on workforce, transparency, support, insurance, funding, fraud and mismanagement.
New towns, expanded settlements and housing delivery
Modular inquiry asks if new towns and expanded settlements are an effective means of delivering housing.
Building Engineering Business Survey Q1 2025
Survey shows growth remains flat as skill shortages and volatile pricing persist.
Construction contract awards remain buoyant
Infrastructure up but residential struggles.
Home builders call for suspension of Building Safety Levy
HBF with over 100 home builders write to the Chancellor.
CIOB Apprentice of the Year 2024/2025
CIOB names James Monk a quantity surveyor from Cambridge as the winner.
Warm Homes Plan and existing energy bill support policies
Breaking down what existing policies are and what they do.
Treasury responds to sector submission on Warm Homes
Trade associations call on Government to make good on manifesto pledge for the upgrading of 5 million homes.
A tour through Robotic Installation Systems for Elevators, Innovation Labs, MetaCore and PORT tech.
A dynamic brand built for impact stitched into BSRIA’s building fabric.
BS 9991:2024 and the recently published CLC advisory note
Fire safety in the design, management and use of residential buildings. Code of practice.