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Decking Cover Tape
Joist Support Riser Pedestals
Our Essentiel, Elevo® and Easio® riser pedestals for timber decking are easy to use and cost-effective. To ensure the durability of timber decking on riser pedestals, the joists should never be laid directly on the ground. For proper ventilation, timber decking boards should be supported on riser pedestals or packers. This is why Jouplast® offers such a broad range of riser pedestals for terraces, complemented by an equally extensive range of associated products to maximise the life of your terrace
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Bituminous Joist Protection Tape for Decking
Profildeck Structure Screw
Profildeck Horizontal Junction Angle Bracket
Profildeck horizontal junction angle bracket for H27 aluminium joist and H55 lateral finis...
Profildeck Vertical Junction Angle Bracket
Profildeck Adaptater
Pack of Mixed Spacers of 3 (blue) and 5 (black) mm
Spacer of 3 mm
a question?
Our outdoor landscaping experts are here to answer your questions.
1. On what types of surfaces can joist pedestals be used?
Your joist pedestals must be installed on a prepared raw surface or a concrete slab. We strongly advise against installing them directly on bare soil without stabilization, due to the risk of ground settling or shifting caused by weather conditions (rain, drought) or the weight of the structure. Whether you place your pedestals on a raw surface or a concrete slab, the base must be clean, stable, and well-leveled to ensure the long-term durability of your deck.
2. What is the spacing between joist pedestals?
The spacing between pedestals depends on the type of wood and the size of the joists you are using. As a general rule, we recommend a distance of 70 cm between each adjustable pedestal. For the joists, we suggest a center-to-center spacing of 50 cm if your decking is made of natural wood boards. Please note that these guidelines differ for composite decking.
3. What is the maximum load our joist pedestals can support?
Jouplast® pedestals have a crush resistance of over 1 ton. However, the weight a wooden deck on pedestals can support doesn’t depend solely on the pedestals’ strength—it also depends on the type of wood used for the decking. We therefore recommend consulting your wood supplier for more precise information.
More generally, if you plan to place a heavy item on your pedestal deck, such as a hot tub, we suggest using our PROFILDECK® solution (aluminum joists), which allows for better weight distribution across the structure of your pedestal-mounted wooden deck.
