What does “dry-graded” mean?
The concept of dry graded timber is a bit confusing. It is not the opposite of wet grading. Here is an attempt to clarify things: […]
EN14081
Slides from timber strength grading webinar
Here are the slides from my bit of the BM TRADA webinar on strength grading of timber, Thursday 18 April 2024. This covers machine grading […]
Visual grading standards and EN14081-1
Visual strength grading of timber can be done to a wide range of grading rules – many of which are national standards. However, in Europe, […]
Strength grading of UK and Irish grown timber (big info drop)
Machine strength grading of structural timber in Europe is done mostly under a system called “machine control”. The machine settings are fixed based on large […]
Does the CPR need CPR?
The Construction Products Regulation 2011 (CPR) is a European Union (EU) regulation harmonising performance information on construction products across the EU. I’ve written before about […]
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 […]
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 […]
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 […]