Why grading isn’t about the grade
The strength grading of timber is not about the strength grade – it is about the properties of the timber. A strength grade (or, more […]
visual grading
Thinking beyond strength classes
This paper summarises the processes and normative requirements involved in grading of structural timber, and outlines a number of areas in which matters may be […]
BS EN 14081-1:2016 published
The new version of EN 14018-1 “Timber structures – Strength graded structural timber with rectangular cross section. Part 1: General requirements” has now been published by the British […]
Making the grade
This post is a ‘director’s cut’ version of Dan Ridley-Ellis’s (@flyingquercus) presentation at the Institute of Chartered Foresters 2016 National Conference “The Timber Supply Chain – Dynamics and […]
Rate of growth
In a previous post “Grade in Britain” we said that “rate of growth”, as a concept in timber grading, isn’t so closely linked to the […]
Grade in Britain
For a more up-to-date post on properties see Grade in Britain revisited. Introduction We looked at British spruce in a previous post. It is, for […]
Strength grading of timber explained
The paper “Strength grading of sawn timber in Europe: an explanation for engineers and researchers” by Dan Ridley-Ellis, Peter Stapel and Vanesa Baño is now published (online […]
The mysterious “TG1”
This week, the committee known as “TG1” met to evaluate some new settings for machine grading and visual grading assignments for EN1912. TG1 stands, simply, […]
EN338 – what’s happening with grades?
EN338 is a European Standard that specifies strength classes of structural timber (grades with numbers attached for use in design). It is not the only […]