Decking Components

Decking Subframes

Maximise the resilience and lifespan of your decking with Millboard's own range of subframe solutions.
Plas-Pro, DuoSpan and DuoLift.

Plas-Pro - the recycled, premium standard

A decking subframe is the structure that sits beneath a deck, keeping it supported and providing the base that your decking boards are attached to.

The key to a long-lasting deck is a well-constructed subframe comprised of high-quality materials, set correctly in an appropriate foundation.

Plas-Pro is Millboard’s premium 100% recycled subframe material and can be used alone or as part of the DuoSpan landscaping subframe system. This all-weather, durable and flexible material is a non-rotting alternative to timber and is perfectly suited to spaces exposed to damp, such as jetties, pools, roof terraces and boardwalks.

What is Plas-Pro?

Plas-Pro is made from 100% recycled plastic. By using selected graded materials and cleverly engineered processes, Plas-Pro provides key environmental benefits and the assurance of superior quality performance.

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Plas-Pro 125 x 50mm Joist/Bearer

Designed to be used in conjunction with Plas-Pro 100 x 100mm Posts when installed over a soil/earth base.

Dimensions 125 x 50 x 3000mm
Product Code P1205B300

Plas-Pro 50 x 50mm Joist

Designed to be used in conjunction with the DuoLift system when installed over a solid/stable substrate.


Dimensions 50 x 50 x 2400mm

Product Code P0505B240

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Plas-Pro 60 x 30mm Joist​

Designed to be used in low-level areas with a solid/stable base. Not to be raised with cradles.

Dimensions 60 x 30 x 2800mm
Product Code P1205B300

Plas-Pro 100 x 100mm Post

Designed to be used in conjunction with Plas-Pro 125 x 50mm Joist/Bearers when installed over a soil/earth base.

Dimensions 100 x 100 x 3000mm
Product Code P0505B240

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Subframe material comparison

Each subframe option has its pros and cons. For more details on the benefits and drawbacks of each material, view the decking subframe guide.

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DuoLift® Joist Pedestal

The ultimate support system for your frame. The DuoLift® joist pedestal system was designed to make installation significantly easier and to ensure successful outcomes. Providing substantial height flexibility within four stackable components, DuoLift® removes the common problem of having to order varying height pedestals for a single area. Height-adjustable from 15mm, DuoLift™ makes accurate height-setting easy, and is self-levelling from 35mm upwards.

With DuoLift®, you will have a level support system that won’t rot, split or host algae. DuoLift®’s range of feet, pedestals, risers and cradles is even suitable for use in damp environments.

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DuoLift Joist Cradle 15-60mm

Providing an exceptional height range of 45mm, from 15-60mm, the DuoLift® Joist Cradle enables precision height adjustment with 5mm markings on the side and each quarter turn of the adjustment ring representing a 1mm rise or fall. The Joist Cradle allows the installer to adjust the height whilst the joist is in place, locking tabs provide a secure finish once the correct height has been reached.

Product Code PMCP010

DuoLift Self-Levelling Joint 20mm

Adding 20mm to the height of the supports, the DuoLift® Self-Levelling Joint provides easy and effective levelling of a subframe up to 5º, ready for decking installation. Suitable for standing directly onto a solid substrate or for providing a joint for a higher support.

Product Code PMLP010

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DuoLift Riser 45mm

The riser component of the DuoLift® system increases the height in increments of 45mm. It is capable of sitting directly onto a solid substrate under the Joist Cradle and Self-Levelling Joint or forming part of a higher stack with a foot beneath.

Product Code PMRP010

DuoLift Joist Foot 45mm

The DuoLift® Foot provides a very stable footing for more elevated subframes, raising the height by 45mm and spreading the load further across the substrate, due to the 220mm base supporting a maximum combined height of 350mm.

Product Code PMFP010

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DuoLift Acoustic Separation Pad 3mm

Agglomerated cork and recycled rubber pads offer a layer of protection between joist supports and membranes, as well as providing an acoustic benefit.

Product Code PMAP010

 

DuoSpan® - designed to do more.

DuoSpan® combines the strength of aluminium with the design flexibility of recycled plastic. This achieves a system that provides exceptional ease of installation, enormous strength and durability, and the scope to construct stunning decks and structures that would be impossible with conventional subframes.

DuoSpan® provides the perfect subframe for Millboard decking, as well as a universal support system for other outdoor flooring. Its ingenious design facilitates top-down fixing of decking boards and makes it an easy installation for all levels of competence.

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Flexible connectivity

Multiple bracket types for all types of joints, including Flexible Brackets for non-standard angles.

Slot-and-screw assembly

Screw-locating grooves and self-drilling screws ensure accurate alignment and a fast fix that’s right every time.

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Unique curved constructions

The combination of rigid DuoSpan® with flexible Plas-Pro enables the construction of stunning curved formations.

Exceptional spans

The DuoSpan® 99mm Joist provides an exceptional 1800mm span in residential applications, reducing posts or joist supports required.

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Corrosion-resistant

Galvanic corrosion between different metals is minimised with Millboard’s cathodic barrier fixings.

Simple, stable fixing

Decking and cladding can be easily and securely screwed directly into the DuoSpan® subframe at almost any angle using Durafix 45mm screws.

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Components and Materials
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