21 May 2021

Timbers – their properties and uses WIS receives major updates

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The Wood Information Sheet (WIS) Timbers – their properties and uses, which sets out the properties and uses of 140 timber species used in the UK, has undergone a comprehensive review by BM TRADA experts and been updated where necessary.

 

The 102 species affected have been listed below with their respective changes, along with a list of content updates and expansions.

 

Specifiers should be aware that these may affect design decisions and should therefore be taken into account.

 

List of updates

  • Content has been restructured and headings updated.
  • New points added to the Key points
  • Additional information regarding sustainable sourcing, including detail of UKTR post-Brexit added.
  • Information on modified wood expanded.
  • Adjustments made to timber type/colour detail including additional detail on sapwood/heartwood.
  • Typical average density, moisture movement, natural durability and treatability sections expanded with greater detail.
  • References section updated.

 

Table of timber species, their properties and uses

All species data has been checked and cross-checked against several sources. Adjustments have been made to ensure species are ordered alphabetically, with small editorial changes to correct typos or to standardise descriptive terms. In addition, changes were made in categories listed for the following 102 species:

 

  • Angelim: Density, Moisture movement
  • Angelim, red: Moisture movement
  • Ash, American: Density, Remarks
  • Aspen (American, Canadian): Density, Treatability
  • Birch, American: Density, Treatability
  • Birch, European: Density
  • Cedar of Lebanon: Density
  • Cedar, Central/S American: Treatability, Availability
  • Cedar, Western red: British and Imported rows combined, Density
  • Cherry, American: Density
  • Cherry, European: Natural durability
  • Chestnut, horse: Density
  • Courbaril/jatoba: Density, Moisture movement, Natural durability, Treatability
  • Cumaru: Moisture movement, Availability
  • Dahoma: Density
  • Danta: Natural durability
  • Denya/okan: Okan added to name, Density, Moisture movement, Natural durability
  • Ebony: Density, Availability
  • Ekki/azobé: Density
  • Elm, European: Density
  • Elm, white: Density:
  • Eucalyptus grandis/flooded gum/rose gum: Renamed from Red grandis, Treatability, Remarks
  • Fir, Douglas: Density (UK), Natural durability (N Am), Remarks
  • Gaboon: Density, Uses
  • Garapa: Density
  • Geronggang: Density
  • Gombe: Density, Moisture movement, Natural durability
  • Guarea/Bossé clair: Bossé clair added to name, Texture
  • Guariba: Density, Moisture movement
  • Idigbo: Density
  • Imbiua: Moisture movement
  • Ipé: Species names updated
  • Iroko: Texture
  • Itauba: Density, Moisture movement
  • Jelutong: Density, Natural durability
  • Karri: Density
  • Keruing/apitong/gurjun/yang: Texture
  • Koto: Moisture movement, Working qualities
  • Larch, European: Density
  • Larch, Siberian: Density, Moisture movement
  • Lignum vitae: Species and origin added, Density, Availability
  • Limba/afara/fraké: Fraké added to name, Density, Remarks
  • Lime, European: Density
  • Louro: Density, Treatability
  • Louro, red: Density, Moisture movement
  • Mahogany, African: Density
  • Mahogany, American/Mahogany, Honduran: Mahogany, Honduran added to name, Density
  • Makoré: Density
  • Mandioquera: Name expanded from Mandio, Density, Treatability
  • Maple, rock: Density
  • Massaranduba: Moisture movement, Natural durability
  • Mengkulang: Density, Moisture movement
  • Meranti, light red/light red seraya/white lauan: Density
  • Meranti, yellow/yellow seraya: Density, Uses
  • Merbau: Density
  • Moabi: Moisture movement
  • Mora: Density, Natural durability
  • Movingui/ayan: Density
  • Niangon: Species names updated, Density
  • Nyatoh: Additional species added, Natural durability
  • Oak, American red: Density, Working qualities, Natural durability, Treatability, Remarks
  • Oak, European: Natural durability
  • Oak, Japanese: Working qualities, Availability
  • Oak, Tasmanian: Density
  • Opepe: Additional species added, Density
  • Padauk, African: African added to name, Density, Working qualities, Availability
  • Pau amarelo: Density
  • Pine, Caribbean pitch: Density
  • Pine, Corsican: Density, Working qualities
  • Pine, Elliotis: Density, Treatability
  • Pine, lodgepole: Density, Treatability
  • Pine, maritime: Density
  • Pine, patula: Density, Natural durability
  • Pine, ponderosa: Durability
  • Pine, radiata: Remarks
  • Pine, Scots: Remarks
  • Pine, Southern: Timber type/colour, Remarks
  • Pine, yellow: Timber type/colour, Density
  • Piquia: Density, Moisture movement
  • Poplar: Density, Moisture movement, Uses
  • Purpleheart: Density
  • Ramin: Availability
  • Redwood, European: Remarks
  • Robinia: Timber type/colour, Density, Moisture movement
  • Rosewood: Availability
  • Rubberwood/hevea – plantation grown: plantation grown added to name, Density, Remarks
  • Sapele: Density
  • Simarouba: Texture, Moisture movement
  • Spruce, Sitka: Density
  • Sucupira: Density, Texture, Moisture movement
  • Tatajuba: Density, Moisture movement, Treatability
  • Teak: Density, Natural durability, Remarks
  • Tulipwood/poplar, American yellow: Density, Remarks
  • Utile: Density
  • Virola, light: Density, Moisture movement
  • Walnut, African: Density
  • Walnut, American: Density, Moisture movement
  • Walnut, European: Moisture movement
  • Wengé/panga panga: Density, Moisture movement
  • Willow: Addition of cricket bat willow to Density and in Uses
  • Yew: Moisture movement

 

Members can download a free copy of the WIS Timbers – their properties and uses. WIS sheets are available to non-members too – purchase a PDF or a hardcopy at the TRADA Bookshop.