Our Products

Products: Bank Retention

Combi Posts
A Durable Choice


Combi-posts for sheet-piling consist of an untreated pinewood post with a plastic top-piece.

The pinewood post is situated underwater and only the plastic top-piece protrudes above the waterline. This prevents rotting caused by the interaction of air and water. The top-piece can be worked in the same way as wood; i.e. it can be sawed, drilled, bolted, etc. Because they are maintenance free and have an extremely long lifespan, purchasing Combiposts ultimately leads to substantial cost reductions.


Reasons to use Combi Posts:


  • Maintenance free

  • Durable (lifespan of more than 40 years!)

  • Does not rot or splinter

  • No leaching


Combi Posts have been used:


  • Sneek, NL

  • Heerhugowaard, NL

  • Berkel & Rodenrijs, NL




Plastic top-piece round or square
Round Dimensions (fixed size) : 10 cm
Square Dimensions (fixed size) : 10 x 10 cm

Length :
70 cm (20 cm of which fits over the wooden post)Standard

colour : Black

(total work length = wooden post plus top-piece)
Dimensions : 10 cm
Square Dimensions : 10 x 10 cm

Length : from 170 to 400 cm

Connecting piece = recess of 7 x 20 cm.
Supplied connected together.



  • Allow a space of at least 20 mm between the posts for fitting top and connecting pieces. (See figure above.)

  • Fit together by compressing or vibrating into position.

  • The top and connecting pieces are fitted with carriage bolts/screws

  • Technical specifications / additional advice available.

Recycled plastics is the environmentally friendly solution

Increasing concerns about the environment, especially the controversial use of tropical hardwood and chemical treatments, has sparked a search for alternatives for waterside construction projects, we provide all the materials that modern marine construction engineers need to start work. including planks, sheet-piling, jetties and bridges. All these products are made completely from recycled plastic.