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
CIAT responds to the updated National Planning Policy Framework
With key changes in the revised NPPF outlined.
Councils and communities highlighted for delivery of common-sense housing in planning overhaul
As government follows up with mandatory housing targets.
CIOB photographic competition final images revealed
Art of Building produces stunning images for another year.
HSE prosecutes company for putting workers at risk
Roofing company fined and its director sentenced.
Strategic restructure to transform industry competence
EBSSA becomes part of a new industry competence structure.
Major overhaul of planning committees proposed by government
Planning decisions set to be fast-tracked to tackle the housing crisis.
Industry Competence Steering Group restructure
ICSG transitions to the Industry Competence Committee (ICC) under the Building Safety Regulator (BSR).
Principal Contractor Competency Certification Scheme
CIOB PCCCS competence framework for Principal Contractors.
The CIAT Principal Designer register
Issues explained via a series of FAQs.
Conservation in the age of the fourth (digital) industrial revolution.
Shaping the future of heritage
Embracing the evolution of economic thinking.
Ministers to unleash biggest building boom in half a century
50 major infrastructure projects, 5 billion for housing and 1.5 million homes.
RIBA Principal Designer Practice Note published
With key descriptions, best practice examples and FAQs, with supporting template resources.
Electrical businesses brace for project delays in 2025
BEB survey reveals over half worried about impact of delays.
Accelerating the remediation of buildings with unsafe cladding in England
The government publishes its Remediation Acceleration Plan.
Airtightness in raised access plenum floors
New testing guidance from BSRIA out now.