Adjustable riser pedestal for joists - 20/30 mm

Adjustable riser pedestal for joists.

These OCAPE® riser pedestals are designed to support joists, and are height-adjustable between 20 and 30 mm.

  The MORE accreditation label

We use 100% recycled raw materials sourced from the textile industry.

  ISO 9001

Our company is certified compliant with the international ISO 9001 standard.

  • Adjustable 20 / 30mm riser pedestal designed to support the joists used to create flat roof terraces and protect the waterproof roofing membrane.


  • French technical standard DTU 43.1 requires the use of riser pedestals between 50 and 200 mm in height.
  • Allow for an average of 4 riser pedestals per m2.

Product Details

HLA 20/30 mm

Data sheet

20-30 mm
60 items per box
Pallet packaging
25 boxes - 1500 items
Type of decorative finish
100% recycled polypropylene
Flange diameter
208 mm - Ground contact area greater than 300 cm2
Riser head diameter
120 mm - Bearing contact area greater than 100 cm2
Joist support tab - Height
25 mm
Temperature resistance
-30°C to +60°C
UV resistance
Frost resistance
Crush test strength
when loaded to more than 1 tonne

Millimetre-accurate screw adjustment, with no additional tools required.

Self-locking grooves for extra ground support.

Riser pedestal base chamfered to avoid damaging flat roof membranes, multi-perforated to prevent water retention.

Crush resistance greater than 1 tonne.

Flat roof terraces with pedestrian access.

Garden roof terraces