Iron Ash, your stunning external timber solution

IronAsh uses innovative technology to combine a transparent combination of water based additives deep into the core of GoodWood Victorian Ash


Treated to H3 classification, IronAsh can be used externally in partnership with GoodWood Victorian Ash to allow continuous flow of timber design from inside to out.

IronAsh is a great choice to finish the project. It can be easily cut, stained and painted on site. The IronAsh range offers an affordable timber choice that is stable and readily available.

Product Range includes:

Sub decking

Available in 35, 45 & 70mm thicknesses x 90, 120, 140, 170, 190, 240, 290mm widths up to 7200mm long, IronAsh comes with a 25 year guarantee for decay.

A deck of 4800 x 7200mm at 1.0m+ above the ground using IronAsh bearers and joists will require only 16 stumps as compared to an F7 treated pine which will require 35 stumps. The cost of material for each product is similar but the difference is clear. Not only will this save a day in labour but a hardwood joist has double the nail holding ability of treated pine which ensures the quality of your deck for years to come. our bearers and Joists are straight. Longer span means more storage room below too!


Beautiful appearance that can be stained or painted. Stronger than alternatives, longer span than alternatives and less bulky, laminated pergola material is available in 90-290mm x 45mm in F17 grade.


IronAsh cladding is available in random length or finger jointed set length 5.4m lengths. It is easy to work with, straight, good to nail and takes a stain well. Available in 105 x 19 shiplap.


IronAsh screening is available in random length longs or finger jointed set lengths of 1.8, 2.1, 2.4 or 5.4m. It is straight and hard wearing. Sizes range from 42 – 65 x 14, 70-90 x 19, 42 – 90 x 32, 42 – 65 x 42

IronAsh LOSP AS1604.1
Ability to profile after treatment    
Full sapwood penetration    
Deep Heartwood penetration    
Exceeds Australian Standards by +20%    
Durable protection    
Listed by CodeMark    
Safe for both exterior and interior use    
Non Solvent Carrier    
Patented penetration system    

IronAsh product range

For the full list of sizes and profiles, please look at

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