Section Contents

APA’s Industrial Panel Selection Guide

The Industrial Panel Selection Guide (download here) helps you complete your specification. These notes tell you how to work with it.

The guide is a series of ‘yes’ and ‘no’ questions in four worksheets to help you decide which plywood or OSB product you will need for your specific non-construction application.  For example, it addresses issues such as smoothness, overlays, size and number of knots and knot holes, suitability for painting and staining etc.

For a ‘yes’ answer you circle the number in the right hand column. A ‘no’ requires no action.  You take the highest numbers for each worksheet to determine your  APA Industrial Category Index.

For example, if the highest circled numbers are 7 on the first worksheet, 1 on the second, 3 on the third and 1 on the fourth, the Industrial Category Index for the required panel is 7-1-3-1.  You then identify your panel by matching your numbers in the Panel Translator Chart or Characteristics Locator Charts .

Guide to worksheets

Worksheet 1: Panel face characteristics, page 9

Worksheet 2: Panel back characteristics, page 11

Worksheet 3: First crossband characteristics, page 13

Worksheet 4:  Inner layer characteristics, page 15

Panel Translator Chart: page 19

Characteristics Locator Charts: pages 20-23

Substitute Panels

If a panel with the Industrial Category Index for your application is not available as one of the common APA panel construction grades, it is possible to select a substitute panel. Because the Industrial Category Index identifies minimum acceptable characteristics, any panel with Characteristic Numbers in each category equal to or greater than the original number may be substituted.

For instance, if an application calls for a panel with an Industrial Category Index of 10-10-3-3, a panel with the number 109-10-9-9 would also work.  However, a panel number of 10-9-9-9 would be unacceptable because the second number is lower than the second number in the original Industrial Category Index.


APA in Europe Wizard

All Questions OSBPlywood

What is a ‘life cycle stage’ and how do these link to the environmental assessment of whole buildings?

How do core category rules link with environmental product declarations?

Whose responsibility is it to check that wood products being imported into the EU do not originate from illegally sourced timber supplies?

Does the EUTR require mills to provide any extra documentation for customs entry into the European Union?

Must all plywood and OSB panels carry a CE marking?

What is the definition of a construction product under the CPR?

What is a Declaration of Performance referred to under the Construction Products Regulation?

What is the difference between Structural 1 and Exposure 1?

Does structural panel siding have shear values?

What are mould and mildew, and do they compromise the integrity of engineered wood?

The CE-mark on an APA plywood panel means it conforms to European Standards – but which ones?

I want to use a Rated Sheathing panel for flooring/ roofing application, what info do I need to know?

Plywood: Span rating
OSB: Span rating

What extra strength benefits do Structural 1 OSB panels provide over standard Rated Sheathing panels?

Do APA panels give off formaldehyde?

Plywood: Formaldehyde
OSB: Formaldehyde

What is the difference between a touch-sanded panel and sanded panel?

I’d like to know how APA veneer grades match those given in the European standards

How do I correctly gauge the face appearance a plywood Siding panel?

I want to specify an APA panel for concrete formwork – what do I need to know?

Are APA panels tongue and grooved on all four edges?

I am not familiar with the term ‘Sized for Spacing’ – what is its significance?

How are Performance Category and thickness related?

I’d like to know more about a panel’s Span Rating and how it links to thickness.

Plywood: Span rating
OSB: Span rating

What is Span Rating on the APA trademark and why is it important?

Plywood: Span rating
OSB: Span rating

What is the difference between Exposure 1 and Exterior plywood panels? What are their appropriate uses?

What are the main OSB panels likely to be available in Europe?

What are the main plywood panels likely to be available in Europe?

What are the main European standards that I would need to be aware of for OSB panels?

The main standards are: EN 13986 and EN 300

What are the main European standards that I would need to be aware of for plywood panels?

The main standards are: EN 13986, EN 636, EN 314, EN 635-3