Covid-19 - 25/09/2020 - Everyone at iWood would like to thank you for your continued support during the pandemic.
As more of our customers have started coming back to work we have seen an influx of orders.
As such we are currently working to a lead time of 14-28 working days
(some products have longer lead times as described in their individual descriptions). We are still following government guidelines to keep our staff and customers safe.
Durability is a measurement of how long specific species of timber would last if a 50mm x 50mm cross section was left in the ground unprotected.
An untreated
Oak beam, which is classed as 'durable', for example, will last 15-25 years depending on environmental conditions.
The following scale of durability was outlined by TRADA, the Timber Research And Development Association.
| Durability |
Class Designation |
Average timber service life |
Example Timber |
| 5 |
Not durable |
less than 5 years |
American Ash |
| 4 |
Slightly durable |
5-10 years |
Siberian Larch |
| 3 |
Moderately durable |
10-15 years |
Douglas Fir |
| 2 |
Durable |
15-25 years |
European Oak |
| 1 |
Very durable |
more than 25 years |
Teak |