The Jouplast Cleman 28/40 mm adjustable pedestal is a premium support that adjusts to the nearest millimeter from 28 to 40 mm to build an outdoor tiled terrace in porcelain stoneware, concrete slabs or wooden duckboards. Its key strength: adjustment from above, allowing the height to be set after installation without removing the slabs.

A premium pedestal designed for a perfect finish

The Cleman pedestal comes with what other ranges offer as options: acoustic rubber pad included, 2 side cladding supports per base plate and a square base ideal for corner installation or against a wall. All the components lock together for optimal stability, and the glue traps hold the skirting vertical for a clean finish.

Advantages

• Adjustment from above, can be set after installation with the Cleman key
• Optimized side cladding: 2 supports built into the base plate
• Easier corner installation thanks to the square base plate
• Acoustic rubber pad included
• 4 break-off spacer tabs of 4 mm for installation with or without joints
• Crush resistance greater than 1 ton, compliant with DTU 43.1

Installation tips

This pedestal is intended for outdoor pedestrian use, on stabilized ground or an existing concrete slab. On soil or gravel, plan some light groundwork (excavation 15 cm, geotextile membrane, 30/60 or 40/80 crushed gravel, 0/4 sand bed if needed, compaction). Allow a fall of 1 cm per linear meter for water drainage, and lay self-supporting slabs of class T7 or T11 (standard NF EN 1339 or F+). Allow 4 pedestals per slab up to 60 × 60 cm, plus 1 to 2 central pedestals for larger sizes.

Bituminous membrane compatibility

This polypropylene pedestal with a wide base is compatible with bituminous and PVC membranes. Add a protective layer (geotextile membrane or cushioning slab) under each pedestal to avoid any risk of abrasion. To be avoided on membranes: pedestals with a metal base, without a wide base or with mechanical fixing, which could puncture the membrane and void the waterproofing.

Warnings and good practice

• Slabs only: not designed for joists or secondary wooden structures.
• Slab thickness: preferably at least 2 cm for stability and longevity.
• Jointless installation between the slabs to preserve the waterproofing of the whole assembly.
• Slab support plate not compatible with the Cleman 28/40 mm pedestal.

Technical specifications

Tip: the Cleman adjustment key is sold separately but essential for adjusting the height after installation. Complete your order with the adjustment bit (drill-driver) and the Cleman 60 mm extension depending on your project.