Millboard Decking & Cladding

Millboard decking is extremely versatile and can be used in practically every outdoor space (subject to building control). Create decks, cladding, balconies, roof gardens, boardwalks, bridges, pontoons, seating, steps, planters and more. Millboard can be used as the decorative face for most outdoor designs, as long as it is fixed to a structural element.

Millboard has been designed to replicate the natural variances of timber and we do not intend for the product to have identical shades. Buying all the Millboard decking you need at the same time should help to ensure that the colour is as consistent and we would always recommend laying out the boards before installation, to create an effective, subtle blend.

Samples are provided as a representation of the product and we would encourage customers to view full boards as part of a deck, in order to fully appreciate the product, prior to purchase.

We go to extraordinary lengths to recreate the look of natural timber. As with all products exposed to the elements including sunlight, snow and rain, Millboard will naturally weather and tone down over time. Slight yellowing, especially in the deeper grain of our decking and cladding boards will be visible and loss of gloss is also expected and intentional. This is in order for us to replicate that natural piece of timber it has so carefully been moulded against along with our unique hand coloured process.

As with all composite products, the surfaces of the boards tend to be hotter than timber when exposed to direct sunlight. Darker colours particularly will feel hotter and may be uncomfortable to walk on in bare feet. Under direct sunlight and high temperature, footwear may be necessary. Special caution should be taken when using decking in areas by heat/UV reflective glass, or around pools.

As Millboard is made from a resin mineral composition it is stable in comparison to timber or composites based on timber. We recommend a 4mm gap between the sides of boards and a 1mm gap between the ends of boards, a 10mm gap should be left between the boards and any solid surface to aid drainage.

The Lastane® finish is resistant to food and drink stains and scratches, and everyday wear and tear. Sharp objects such as unprotected table or chair legs, spiked shoes, animal claws or metal planter bases can leave marks if dragged across the surface, so take care when moving these items around. The risk of marking from strong dyes and stains such as berries and animal droppings will be reduced if removed as soon as possible, this also applies to cooking oils or fats that come into contact with the surface of the Lastane®.

Please ensure to cover and protect the boards from any surrounding building or landscaping works, painting, rendering or cementitious dust that could contaminate or mark the surface, especially if the boards have been recently installed. Millboard will not be held responsible for issues arising from the boards being affected by foreign substances as this does not represent a fault with the product. We are able to recommend cleaning solutions that may be used to address contamination concerns or in situations where our guidance has not been followed.

Following extensive trials, we recommend and supply Durafix® stainless steel screws, designed specifically for Millboard - this is a requirement of our limited warranty. There’s no need to pre-drill or countersink Millboard decking, and the unique Lastane® material coating flexes back over the screw-heads, leaving a minimal witness mark. This may be more visible on the lighter colours. Should some of the screws leave larger witness marks, these can be filled - please see our installation guide.

As the boards are a moulded product we use a release agent in the manufacturing process so when the boards are first delivered this release agent is still on the surface. This may result in the boards looking like they have a shiny or waxed surface or have small particles of dirt and water puddling. This release agent will come off the surface within 6-8 weeks due to natural weathering. This process can be accelerated by cleaning the boards with warm soapy water and stiff brush after installation.

When the boards are first laid they still have a release agent on the surface, this will come off within 6-8 weeks due to natural weathering and usage.

The release agent means that the water will form beads or globules over the surface of the boards, once this release agent has come off the water will dissipate across the board surface. Laying the boards to a slight fall away from a building will help to drain the water off the surface, however it will not drain all of the water off the boards. Adhere to relevant gapping on the sides and ends of the boards as per the installation guidance to assist drainage, the boards have a cupping tolerance of 2mm. Surface water will always be more prevalent on Millboard due to it being made from a non-porous composition. Surface water can be taken off the surface of the boards with a brush or large squeegee, frost or ice can be removed by spreading white salt across the board surface.