Ash wood
Contents[hide] |
[edit] Introduction
Ash wood, specifically the fraxinus excelsior, Common or European ash (sometimes also called golden ash), is a large tree and the third most common tree in the UK, where is is a native species. Ash trees may be found with large trunks often due to being pollarded, and can live up to 350 years. Other ash trees that some might call native and grow in the UK include the Claret Ash (Fraxinus angustifolia var.oxycarpa) also called Narrow Leaf or Raywood Ash, as well as the Manna Ash (Fraxinus ornus), also known as the Flowering Ash which is native to central Europe.
In 2019 a paper was published highlighting threats to ash species because of issues such as Ash Dieback which was first discovered in 2012, as well as Emerald Ash Borer found in North America. It also highlighted the significance of ash in supporting biodiversity, being 'home to almost 1000 other species including birds, insects, mosses, fungi and lichen'
[edit] Forestry products
Ash timber has been worked by hand for many years, it is a very tough hardwood, able to absorb shocks without splintering and is considered attractive. It is used to make sports and tool handles, such as hammers, axes, spades, hockey sticks and oars as well as a variety of furniture. As a forestry product the timber was used in the 1800's for carriages, and is still used by specialist motor car manufacturer Morgan. As a coppiced wood it traditionally provided wood for firewood and charcoal, as a solid hardwood, burning well. The seeds have also been used in herbal medicine.
[edit] Specification
- Common Name(s): European Ash, Common Ash
- Scientific Name: Fraxinus excelsior
- Distribution: Europe and southwestern Asia
- Tree Size: 65-115 ft (20-35 m) tall, 3-6 ft (1-2 m) trunk diameter
- Average Dried Weight: 42 lbs/ft3 (680 kg/m3)
- Specific Gravity (Basic, 12% MC): .49, .68
- Janka Hardness: 1,480 lbf (6,580 N)
- Modulus of Rupture: 15,020 lbf/in2 (103.6 MPa)
- Elastic Modulus: 1,785,000 lbf/in2 (12.31 GPa)
[edit] Other ashes
There are many many other varieties of ash grown throughout the world these include;
- Black ash (Fraxinus nigra) US and Canada, most devastated by emerald ash borer
- Green ash (Fraxinus pennsylvanica) North America, impacted by emerald ash borer.
- White ash (Fraxinus americana), also known as Biltmore ash, from North America and affected badly by emerald ash borer.
- Blue ash (Fraxinum quadrangulata). Mid US higher survival rate in areas infested by emerald ash borer.
- California ash (Fraxinus dipetala). California, Arizona, Utah, Nevada, Baja California, not yet infected by the beetle.
- Carolina ash (Fraxinus caroliana). Also Florida, swamp ash, water and pop ash. Cuba, subtropical southern U.S.
- Gregg's ash (Fraxinus greggii) also littleleaf, Mexican or dogleg ash. Arizona, New Mexico, and Texas.
- Pumpkin ash (Fraxinus profunda) also welled butt or red ash, devastated by emerald ash borer.
- Velvet ash (Fraxinus velutina) also Arizona or Modesto ash. Emerald ash borer more recently an issue. Southwestern North America.
- Manchurian ash (Fraxinus mandschurica) experimenting with cross breeding with native North American ashes in order to develop species that can survive the beetle onslaught. grows in Eastern Asia.
[edit] Related articles on Designing Buildings
- A guide to the use of urban timber FB 50.
- Carpentry.
- Cedar.
- Forest Stewardship Council.
- Hardwood.
- Lime wood.
- Programme for the Endorsement of Forest Certification.
- Softwood.
- Timber vs wood.
- Types of timber.
- Wood ash.
[edit] External references
Featured articles and news
How can digital twins boost profitability within construction?
A brief description of a smart construction dashboard, collecting as-built data, as a s site changes forming an accurate digital twin.
Unlocking surplus public defence land and more to speed up the delivery of housing.
The Planning and Infrastructure bill oulined
With reactions from IHBC and others on its potential impacts.
Farnborough College Unveils its Half-house for Sustainable Construction Training.
Spring Statement 2025 with reactions from industry
Confirming previously announced funding, and welfare changes amid adjusted growth forecast.
Scottish Government responds to Grenfell report
As fund for unsafe cladding assessments is launched.
CLC and BSR process map for HRB approvals
One of the initial outputs of their weekly BSR meetings.
Architects Academy at an insulation manufacturing facility
Programme of technical engagement for aspiring designers.
Building Safety Levy technical consultation response
Details of the planned levy now due in 2026.
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.