An update to EN1912
Visual strength grading of timber is carried out according to grading rules that are usually (but do not have to be) national standards (like BS4978 […]
Standards
Strength classes you won’t find in EN338
Not all strength classes are listed in EN338. Here are the main characteristic properties of some strength classes that appear in machine settings tables for […]
Updates to EN14081-3,-2 and EN384
There is a proposed new version of EN14081-3 out for Enquiry, mostly to provide proper integration of the updated output control rules (compared to the […]
Timber2019
The 3rd in my treelogy of talks entirely based on pun titles – the most egregious one of all.“Grading and abetting – does timber strength […]
Countries, nations and standardised areas
EN14081-2 is the standard that governs machine controlled strength grading of timber in Europe. A new version of this was published in 2018, and in […]
Grading of home grown timber (summary)
Yesterday I spoke at the “Green Drinks” organised by SEDA and AECB. (The other main speaker was Nick Marshall, coordinator of the Association of Scottish […]
CE marking and UKCA marking – no deal preparations
Since our last post on Brexit, in which we mentioned the new UK conformity mark to replace the CE mark, The UK Government has updated […]
A quick summary of timber strength grading
The physical and mechanical properties of wood vary hugely – not just between species, but also within species, from forest to forest, between trees in […]
What became of EN14081-4
EN 14081-4 “Timber structures. Strength graded structural timber with rectangular cross section. Machine grading. Grading machine settings for machine controlled systems” is the standard that […]
Grade stamps – who done it
The grade stamp on structural timber from Europe must say who the manufacturer is – by means of the name, logo or both. In the […]