10 TermsHome > Terms > English, UK (UE) > Durability class
Durability class
Durability is expressed as one of four classes. The value for each species is based on trials of the resistance to both decay and termites of untreated heartwood in the ground. The classes are:
Class 1- Lumber of the highest natural durability, expected to have a life greater than 25 years in the ground and greater than 40 years exposed above ground.
Class 2 - Lumber of high natural durability, expected to have a life of about 15 to 25 years in the ground and 15 to 40 years exposed above ground.
Class 3 - Lumber of moderate natural durability, expected to have a life of about 5 to 15 years in the ground and 7 to 15 years exposed above ground.
Class 4 - Lumber of low durability, expected to have a life of 0 to 5 years in the ground and 0 to 7 years exposed above ground.
The sapwood of all species is regarded to be Class 4.
This is auto-generated content. You can help to improve it.
0
0
Improve it
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Building materials
- Category: Lumber
- Company:
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Industry/Domain: Zoology Category: Zoological terms
phylum placozoa
Macroscopic, flattened marine animals, composed of ventral and dorsal epithelial layers enclosing ...
Industry/Domain: Zoology Category: Zoological terms
phylum cnidaria
Cnidarians. Hydras, hydroids, jellyfish, sea anemones, and corals. Free-swimming or sessile, with ...
Industry/Domain: Accounting Category: Auditing
share a term with millions
Share a term with millions of users around the world and increase your online visibility.Share a ...
oak
Genus native to the Northern Hemisphere with spirally arranged leaves, catkins for flowers and ...
Everest
The last but not least mount Everest. The Earth's highest mountain, with a peak at 8,848 metres ...
Industry/Domain: Plants Category: General plants
aglaonema
Genus of about 20 species of usually rhizomatous, evergreen perennials from tropical forest in Asia. ...
Industry/Domain: Science Category: General science
Robojelly
Robojelly is a hydrogen-powered robot desgined in the United States that moves through the water ...
Industry/Domain: People Category: Entrepreneurs
Ferdinand Porsche
Ferdinand Porsche (3 September 1875 – 30 January 1951) was an Austrian-German automotive engineer ...
Industry/Domain: Broadcasting & receiving Category: News
Marzieh Afkham
Marzieh Afkham, who is the country’s first foreign ministry spokeswoman, will head a mission in east ...
Industry/Domain: Accounting Category: Auditing
define1
Share a term with millions of users around the world and increase your online visibility.Share a ...
Contributor
Featured blossaries
Browers Terms By Category
- Festivals(20)
- Religious holidays(17)
- National holidays(9)
- Observances(6)
- Unofficial holidays(6)
- International holidays(5)
Holiday(68) Terms
- Material physics(1710)
- Metallurgy(891)
- Corrosion engineering(646)
- Magnetics(82)
- Impact testing(1)
Materials science(3330) Terms
- Printers(127)
- Fax machines(71)
- Copiers(48)
- Office supplies(22)
- Scanners(9)
- Projectors(3)
Office equipment(281) Terms
- Home theatre system(386)
- Television(289)
- Amplifier(190)
- Digital camera(164)
- Digital photo frame(27)
- Radio(7)