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Jouplast

Self-Levelling Pedestals

Self-levelling pedestals for outdoor patios provide support suitable for installation on a surface that is not perfectly flat or on an uneven surface. This means that the surface may have irregularities such as stones or gravel left over from site preparation and may have a slope of up to 5%. It may also be a concrete slab with some cracks caused by ageing. Whether you need a self-levelling paving pedestal for tiled surfaces or a self-levelling decking pedestal for timber builds, Jouplast® has a solution for you. Self-levelling patio pedestals are ideal for creating outdoor patio areas for pedestrian use, whether with ceramic tiles, paving, timber or composite deckings.

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Simplify the installation of your raised patio with adjustable self-levelling pedestals

Jouplast offers three types of adjustable self-levelling patio pedestals for decking or tiles.

Our selection of self-levelling paving pedestals currently features two product ranges:

Additionally, we have recently added a new range of pedestals for raised deckings. Our EASIO® self-levelling decking pedestals were specifically designed for the construction of timber and composite deckings for pedestrian use.

Jouplast’s self-levelling patio pedestals offer several advantages for

  • Ground adaptability: their self-levelling head can compensate for slopes of up to 5%, making them ideal to create patios on uneven grounds.
  • Installation is quick and easy. Once the ground has been properly stabilized and a geotextile layed out, installing the pedestals is child’s play. It does not require any major earthwork and very few tools.
  • Adjustment is precise and accurate to the millimetre. Our products come in a wide range of heights and are very easy to adjust. The height of our self-levelling adjustable paving pedestals can be set from 29 to 245 mm for the standard Essentiel range. Extra height can be added using 10 mm or 60 mm risers. The height of the Cleman® and EASIO® pedestals can be adjusted from 40 to 230 mm.
  • Jouplast self-levelling pedestals are durable and come with a 10-year warrantee, subject to our general terms and conditions of sale and in accordance with our directions for use.
  • They are highly resistant to UV light and frost and can withstand heavy loads of up to 1 tonne per pedestal. This makes them a strong and stable support.

Therefore, Jouplast self-levelling pedestals are a practical solution, guaranteeing time savings and unfailing adaptability thanks to their height adjustment.

How to install self-levelling pedestals

1. Mark out the area

First, mark out the location of the future patio.

Before starting the construction work, it is important, essential even, to prepare a joint layout plan in order to define: the direction of laying, the cuts, the number of pedestals, the edge finish, the accessories needed, etc.

2. Prepare the sub-base

Two possibilities:

On uneven ground

  1. Remove about 15 cm of topsoil.
  2. Lay a geotextile, then a base layer using 0/31.5 grade aggregate.
  3. Compact with a vibrating plate.

On a concrete slab where levelling has already been carried out

  1. Remove any debris (rubble, stones, etc.) that could hinder installation and the stable support of the pedestals.
  2. Check the available heights at the door or windowsills.
  3. Ensure there is a minimum clearance of 3 cm under the slab. If the slab has a slope, use the self-levelling pedestal, which will provide a slope correction of up to a 5%. This also applies if the slab has uneven surfaces.

For further explanations, you can watch our video on ground preparation.

3. Position the pedestals

Position the pedestals directly on the ground, following the layout plan and the spacing between the pedestals.

4. Lay the tiles

Lay the tiles against the spacers.

5. Adjust the pedestals

Turn the nut by hand to adjust the pedestal to the desired height.

6. Finish the edges of the patio

Using cut tiles

  1. Place the lateral riser support on the base of the pedestal.
  2. Clip the side finishing plate onto the top of the pedestal.
  3. Place an isolation pad on each side finishing plate around the perimeter (optional)*.
  4. Apply dots of PU adhesive to the « glue trap » points: on the tab of the lateral riser support and on the side finishing plate.
  5. Place the side plate in the vertical position against the lateral riser support, pressing firmly against the adhesive dots.
  6. For a 100% invisible finish, the tab on the lateral riser support can be snapped off**.

*NB: The isolation pad raises the finished height by 3 mm.

**NB: For a non-adhesive installation, the tab can be left in place and used as a stop to hold the lateral riser support in position at the bottom.

Using finishing profiles

  1. Before attaching the paved side finishing plates to all the perimeter patio pedestals, place 1 securing clip in the glue trap of each paved side finishing plate.
  2. Clip the side finishing plates onto the top of the pedestal, with the clip facing outwards.
  3. Place a square isolation pad on each side finishing plate around the perimeter.
  4. Lay all the perimeter tiles.
  5. Align them vertically using the clip.
  6. Set out the finishing profiles to plan for cuts, straight connectors and corner connectors.
  7. To provide additional support and prevent the tiles from tipping at the edge of the patio, you can use the side finishing plate support kit to secure the assembly (extensions are available for finishing plate support heights greater than 65 mm).
  8. Assemble all the components before positioning them on the pedestal.
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a question?

Frequently asked questions about self-levelling pedestals answered by our outdoor landscaping experts

1. On what types of ground can self-levelling pedestals be used?

Our self-levelling pedestals can be installed on uneven ground, as long as the ground has been properly prepared. They also work on existing concrete slabs, and it is very convenient to be able to install them against an existing structure without any difficulty.

2. Is it necessary to prepare the ground before installing self-levelling patio pedestals?

Yes, it is essential to prepare the surface on which the pedestals will be installed. An unprepared surface (e.g. laying directly on soil or grass) may change over time and shift depending on the weight it bears and weather conditions (drought, heavy rain, etc.). This is why you must stabilise the ground to ensure the long-term durability of your project.

3. Which materials are compatible with self-levelling pedestals?

Our self-levelling pedestals are available exclusively for the slab and timber decking patios.

4. How many self-levelling pedestals do I need to build my patio?

The number of pedestals you will need depends, of course, on the area to be covered and also on the size of your tiles / wooden boards:

  • For a patio with 60x60cm tiles and a surface area of 20m², you will need 4 pedestals per m², or 80 pedestals in total.
  • For a patio with 80x80cm tiles and a surface area of 40m², you will need 7 pedestals per m², or 280 pedestals.

Further details about the number of pedestals per m² based on the tile / decking boards dimensions and the patio area are available in our pedestals calculation table.

5. Can the height of self-levelling pedestals be adjusted?

Yes, our self-levelling pedestals have an adjustable height to the nearest millimetre.

Our Essential pedestals have a height range of up to 485 mm when combined with risers. For the Cleman® range with dual adjustment, it is possible to adjust their height from 40 to 470 mm using a riser.

6. What is the load capacity of our self-levelling pedestals?

All our self-levelling patio pedestals can support up to 1 tonne per pedestal. Can you imagine? One tonne is the equivalent of a giraffe.

7. How long do self-levelling pedestals last?

Jouplast self-levelling pedestals are durable and come with a 10-year warrantee, subject to our terms and conditions of sale and in accordance with our directions for use.  They are UV rays and frost resistant and have a weight tolerance of up to 1 tonne per pedestal. This makes them a robust and stable support.

PICT-FAQ-1
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OVER 60 YEARS

of existence at your service

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INCREASED RESISTANCE

to bad weather

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SUSTAINABLE SOLUTION

and environmentally friendly

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EASY TO INSTALL

thanks to our innovative systems