Flat uPVC Piling

Use Liniar flat pile as a heavy-duty edging or raised bed retaining profile, or for the damming of peat bogs

Flat uPVC Piling

Use Liniar flat pile as a heavy-duty edging or raised bed retaining profile, or for the damming of peat bogs

Why choose Liniar Flat Pile

Liniar’s flat pile can be used on installations where no great strength is required and where a clean straight line of piles is preferred.

Typically used for circular cell design applications, flat sheet pile is a proven technology that’s used on many projects. While these sheet piles offer much less beam strength than Z piles, the sections use a thumb and finger to generate significant pull strength to counter the hoop stress applied to them.

Liniar’s flat piles are used almost exclusively for building large, filled cellular structures. Flat sheets must provide some ability to ‘swing’ between sheets so that a circle can be closed.

Flat pile is used in the damming of peat bogs, as a heavy-duty edging or raised bed retaining profile.

Benefits to the Liniar range of plastic piling:

  • Manufactured from recycled plastic
  • Does not rot or rust
  • Manufactured in the UK by ourselves, so reduces the environmental impact of the cost of transport
  • Has no risk from sparking
  • Not affected by salt water
  • Maintains its original appearance over time
  • Resistant to rodent and marine borer attack
  • Resistant to the majority of chemicals
  • Maintenance free
  • Can be easily cut or bored
  • Lighter than steel, so easier to handle and transport
  • Available in a number of colours
  • Has the ability to create curved walls and a 90º corner pile is available

Flat Pile Technical Engineering values

Physical Properties

Material Weight (Sheet) kg/m Weight (wall) kg/m² Width (sheet) mm  Material Thickness mm Lugs
PVC 3.20 11.42 270o/a 7 N/A

Mechanical Properties

Initial Tan
Modulus kN/mm²
Moment of
Inertia cm⁴/m
Tensile Yield
Strength N/mm²
Secant Modulus
Section Modulus
Moment kNm/m
1450 2.55 81 0.92 40 2.15 23 0.31

Calculations are based on Tensile Strength of material = 40N/mm2. Allowable Moment = Tensile Yield Strength x Section Modulus Factor of Safety = 3

Contact us for more information.

Flat pile design and installation

Flat pile design and installation

We can manufacture our flat piling in a large variety of different lengths in our UK based state-of-the art facility.

The standard colour for our flat piling is grey and is made from 100% recycled materials. If you require something a little more colourful, we are able to produce flat piling in a range of colours to your specifications. (Coloured piling is subject to minimum order quantities.)

Our flat piling is easy to install, low maintenance and durable. It can be installed mechanically or manually depending on your requirements.

This is Liniar

Liniar HQ

For more than 21 years Liniar’s trading company, HL Plastics, has been manufacturing plastic piling in the heart of the UK.

This award-winning company has consistently improved its share of the market due to the high quality nature of the product, outstanding customer service and the fact its plastic piling is extruded on site in the UK.

HL Plastics has over 30 years of experience in the plastic extrusion industry and has the expertise to advise on which type of piling may be suitable for your project.

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