Reliable quality, sustainably produced in Sneek

Lankhorst Infrastructure is part of Lankhorst Engineered Products, founded in 1803 and active in sustainable plastic solutions since 1975. We develop and produce solutions made from recycled plastic for civil engineering, road and waterworks, and public spaces.

  • Solutions for civil engineering, roadworks, and water management
  • Made in Sneek, the Netherlands
  • Recycled and recyclable

From waste to jetty, bridge, or retaining wall

At Lankhorst, we’ve been working towards a circular economy since 1975. Household waste is given a second life with us, serving as a raw material for innovative solutions in the infrastructure market. By reusing recycled plastics, we prevent them from being incinerated and help reduce CO₂ emissions. To make our environmental impact transparent, we’ve had a Milieukostenindicator (Environmental Cost Indicator – MKI) calculated for all our plastic solutions, based on a Life Cycle Assessment (LCA). This allows us to provide detailed insights into the environmental footprint of each project. With an MKI of just €0.017 per kilogram of end product, KLP® is among the most sustainable choices on the market.

Powerful material, smart variations

KLP® is made from high-quality recycled plastic that has been continuously developed over the years into a durable, high-performance construction material. To generate additional stiffness, several KLP® variants have been created to offer comprehensive solutions for civil engineering, roadworks, and water management. For example, KLP® is available with steel reinforcement (KLP®-S) or glass fiber reinforcement (KLP®-V), and it is also combined with wood in the combi-piles and combi-sheet piling.



Long lifetimeLasts at least 50 years, perfect for long-term outdoor applications.
No leachingNo harmful substances or microplastics are released into soil or water.
Maintenance-freeNo coating, impregnation, or treatment required during its service life.
UV-, water-, and weather-resistantResistant to sun, rain, frost, and changing conditions.
100% circularMade from recycled plastic and fully recyclable after use.
Does not rot or splinterA safe and sustainable alternative to wood, without the risk of degradation or injury.

Let’s build sustainable infrastructure together

With KLP® solutions, we are building a sustainable future together. Our experts are always ready to think along with you.

Get in touchor call:+31 515 487 630

Complete sustainable solutions

KLP® Jetties
KLP® Bridges
KLP® Retaining walls

Built to last and fully recyclable afterward

KLP® stands for reliability and sustainability. The material is UV-, water-, and weather-resistant, ensuring that even after years of exposure to sun, rain, and frost, KLP® remains structurally as good as new. It does not rot or absorb moisture, which helps prevent slipperiness caused by algae growth. KLP® does not splinter and requires no maintenance. It contributes to a cleaner environment, being made from recycled materials and free from impregnation, meaning no toxic substances are released into the surroundings. Moreover, KLP® is fully recyclable at the end of its service life.

Partnering to build the infrastructure of the future?

With KLP® solutions, we’re building a sustainable future together. Our experts are always ready to support you with tailored advice.

Get in touchor call:+31 515 487 630