millboard DECKING

Millboard is all about showcasing woods natural grain. Many years were spent developing this natural wood-look in a wood-free composite that provides the attractiveness or real timber without the flaws that can come with the real thing.

This composite is created by moulding the authentic grain pattern of real wood boards using a polyurethane resin reinforced with mineral fibres and a unique Lastanesurface. Millboard has now been tried and tested over 10 years and will withstand the most challenging environmental conditions without splintering, rotting, warping or fading significantly.

It will keep looking inviting for years to come with very minimal maintenance typically limited to a very simple wash off so if you are looking for an ultra-low maintenance decking Millboard is the perfect choice whether for residential or commercial settings. It's features include;

  • Ultra-Low maintenance
  • It's simple and quick to install
  • Highly resistant to fading, scratching, staining and mould
  • Low-slip and splinter free
  • A non-porous Lastane surface
  • An attractive real wood appearance
  • A range of colours and grain patterns
  • A 25-year limited warranty



Millboard comes in two different grain patterns:

Enhanced Grain which showcases a smooth, natural wood grained finish of modern elegance these boards are 176x32 3.6m


Weathered Oak to replicate 100-year-old wharf timbers, sun-bleached driftwood and old railway sleepers, so it has that fine detail and character that usually only comes with real wood. It is perfect for a wide range of landscaping applications these boards are 200x32 3.2m

Millboard is as beautiful as hardwood but innovatively designed to improve upon it in all areas.

Use Millboard to create the perfect finish to your outdoor area without having to be concerned about time-consuming regular maintenance.

Millboard is handmade with care and quality with every board carefully hand coloured to perfectly re-create that real wood appearance.

With Millboard the possibilities are endless, decking, wall claddings, seating, planter boxes. Talk to Austim about your own Millboard vision.




durafix Hidden Fastener

In a word simple, the Durafix Stainless Steel 316 fixings just screw straight in, no pre-drilling or countersinking.

Stop the screw head 5mm below the Lastane surface, and it will leave a small almost indistinguishable hole.


Environmentally friendly

Wood free and carbon verified using the least amount of energy and carbons possible 430g CO2e per square meter.

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frequently asked questions

Do Millboards mark?

The Lastane® finish is highly resistant to scratches and food and drink stains.


Can Millboard be used for other applications?

Millboards are extremely versatile and can be used to create not only beautiful decks, but balconies, roof gardens, boardwalks, planters, bridges, pontoons, seats, steps, and much more besides. For inspiration view our product portfolio at


Can Millboards be cut just like wood?

Millboard may be cut with a carbon tipped multi-purpose chop saw. Matching colour coating for exposed ends is available in 500ml tins. As the formed end of the board is lost when cut, these can be placed in less visual areas against a wall or edging profile.


What fixings should be used to fix Millboards?

Following extensive trials, we recommend and supply ‘Durafix’ self-drilling stainless steel screws. There is no need to pre-drill or countersink Millboards and the unique Lastane® material will self-heal leaving a virtually indistinguishable mark for a clean finish.


What joist spacing do you recommend?

Joist spacing of 400mm is recommended for normal residential and light commercial use. On heavy commercial bridges, balconies, moorings, doorways and steps, use 300mm spacing. If you need to cut the Millboard down along its length, then reduce the joist centres accordingly. A minimum of 3 joists are required for any cut boards. All Millboards are reinforced for additional strength. For laying 45° to the joist, we recommend max 300mm centres and 240mm on commercial applications. Please refer to our full installation guide 


How do I finish the edging detail?

We recommend that our purpose made edging is fitted at steps, supported by fascia boards to complement the aesthetic finish and performance of your deck. Fascia boards and edging come in rigid as standard, however, flexible boards and edges are also available and can be curved to follow a maximum convex diameter of 3 metres.


Can you recommend a merchant or an installer?

We have a network of recommended installers who can complete the work for you. They are chosen for their professionalism and high-quality workmanship. We do not charge extra for this or receive any commission; we just want you to get the best from your project. Ask or sales team for a recommendation.


Do Millboards come with a Warranty?

Yes, our 25 Year Residential limited warranty gives you peace of mind against rotting such as fungal and mildew decay, splitting and twisting. Millboards are hand crafted in the UK. Full details and terms and conditions are above


Why are Millboards virtually maintenance free?

Millboards are manufactured with non-porous material, therefore resisting both algae growth and stains. There is no need to use any kind of solvent, chemicals, abrasive cleaners, wax, oil or other household cleaners on Millboards and no need to pressure wash as dirt does not become ingrained. As the surface texture is non-porous, any dirt and grime may be simply washed off with soapy water and brushed with a broom before rinsing off, just like internal flooring.


Are all Millboards anti-slip?

Yes, in accordance with AS4586:2013 slip resistance tests Millboards lead the industry with their high-scoring P5 anti-slip ratings even in wet conditions.


Are Millboards colours consistent?

As with all flooring, it is best to buy all you need at one time as batches made may vary slightly. Otherwise, we recommend blending different batches.


Austim has the best composite decking timber supplies Perth wide and makes choosing the right product easy. Got questions about Millboard? Ask Austim!