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Glennon Brothers uses a number of innovative and environmentally responsible processes to produce its products. Click on a link to find out more.

Stress grading

The grading of timber can be carried out either via visual grading or machine grading.

  • Visual grading assesses the size, frequency and positions of defects in the timber, such as knots, wane and sloping grain, and compares them to grading rules which define the allowable size, type and number of defects for each grade.
  • Machine grading measures the resistance of the timber member to flexing, which gives a measure

Glennon Brothers grade to standards provided by both the National Standards Authority of Ireland (NSAI) and BM Trada, which is responsible for grading certification in the UK.

Adam Wilsons was the first company in the UK to install a Microtec GOLDENEYE X-ray strength grader. The GOLDENEYE system combines X-ray and laser scanning technologies. Therefore it can not only recognize and measure the board’s surface with absolute accuracy but it can also see inside the board. Adam Wilsons grade to standards provided by BM Trada.

The most commonly specified grade for softwood carcassing is C16.