Timber Grading

Mortlock timber grades its timber to standard and better grade (also called natural select grade) in accord with AS 2796.2-2006. Standard and better grade consists of 2/3 select grade and 1/3 standard grade. Standard and better allows timber to show its natural colours and characteristics without compromising consistency. If you require another grade please speak to Mortlock Timber.

Images shown below are to illustrate the timber feature only, it does not mean that your timber will be supplied with feature to the extent of these images.

Gum Veins
Standard grade: Gum veins less than 60 mm wide and 1m long & 2mm deep are acceptable.
Select grade: Gum veins less than 2mm wide, 250mm long, and 1/2 length in total are acceptable.

Borer Holes
Standard grade: Borer holes less than 24 per 900mm depending on timber width are acceptable.
Select grade: Borer holes less than 10 per 900mm depending on timber width are acceptable.

Tight Knots
Standard grade: Tight Knots less than 1/3 the board width up to a maximum of 40mm are acceptable.
Select grade: Tight Knots less than 15mm wide are acceptable.
Note: Vacoa Timber is a knotty grade, the tight knot grading rules do not apply to Vacoa.

Standard grade: Checks less than 2mm wide & 250mm long are acceptable.
Select grade: Checks less than 1mm wide & 250mm long are acceptable.


For in-depth information about the range of products we offer, please fill out the form below to download our Architectural Timber Pricing and Product Guide. Inside you will find illustrations, specifications, portfolio photo examples and a hardwood timber price guide to assist with budgeting.

Select product of Interest

We are committed to bringing you timber products that add value and endure for years to come, even in heavy traffic and harsh weather conditions. We understand the value of efficiency when it comes to installation and keeping hardwood timber costs down. That’s why we’ve spent decades perfecting our designs to make them easier to handle, less wasteful and more efficient to install. This efficiency allows us to offer you premier products that are more cost-effective so that you can experience greater savings on timber wall costs, timber ceiling costs, timber cladding costs and timber decking costs.

Download our Pricing and Product Guide for our complete hardwood timber price list including timber decking prices, timber wall prices, timber ceiling prices and timber cladding prices.


If you submitted an enquiry with Mortlock Timber on the 30th or 31st of January, your enquiry did not reach our Sales team despite the success message due to a technical malfunction.

Please re-submit your enquiry again below and we will get back to your enquiry urgently.

Resubmit Enquiry