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Retaining Walls

How Much Does Prolock Bank Protection Cost? Price per Metre

Work out the cost of Prolock Sigma sheeting per running metre. Material list, price table per height, and examples for 10, 25 and 50 metres.

By Andre Hassler

7 min read

One of the first questions on every bank project is this: what will it cost? In this article we add up the total cost of Prolock Sigma sheeting per running metre. That encompasses panels, posts, cover and accessories.

With the price lists and detailed examples below you can prepare a realistic budget for your undertaking.

Prolock Sigma: all product prices

Sheet pile panels

Each panel is 50cm wide, so you require 2 panels per running metre.

  • A 50cm by 50cm Prolock panel weighs 4,5 kg and costs 17 euro 25. Two panels per metre come to 34 euro 50.
  • A 50cm by 80cm Prolock panel weighs 5,7 kg and costs 27 euro 60. Two panels per metre come to 55 euro 20.
  • A 50cm by 100cm Prolock panel weighs 7,1 kg and costs 34 euro 50. Two panels per metre come to 69 euro.
  • A 50cm by 120cm Prolock panel weighs 8,5 kg and costs 41 euro 40. Two panels per metre come to 82 euro 80.
  • A 50cm by 150cm Prolock panel weighs 10,7 kg and costs 51 euro 75. Two panels per metre come to 103 euro 50.
  • A 50cm by 180cm Prolock panel weighs 12,8 kg and costs 62 euro 10. Two panels per metre come to 124 euro 20.
  • A 50cm by 200cm Prolock panel weighs 13,7 kg and costs 69 euro. Two panels per metre come to one hundred thirty eight euro.

Posts

Guideline: post length must be a minimum of 1,5 times the wall height. A 100cm wall needs a 200cm post.

  • A blank round spruce post of 10cm and 2,00 m costs 9 euro 90.
  • A blank round spruce post of 10cm and 2,50 m costs 12 euro 35.
  • A blank round spruce post of 10cm and 3,00 m costs 14 euro 80.
  • A blank round spruce post of 10cm and 4,00 m costs 19 euro 75.

Accessories

  • A covering plate of 6,00 m costs one hundred seventy five euro, which is 29 euro 17 per metre.
  • A connecting component for the cover costs 11 euro.
  • A corner section of 3,00 m costs 55 euro.
  • A cover cap costs 4 euro 25.

Total cost per running metre

Below are the aggregate material costs per running metre, encompassing panels, posts and cover. Based on a conventional post spacing of 1,25 m.

  • 50cm panel height: panels 34 euro 50, posts 7 euro 92, capping beam 29 euro 17, extras 1 euro 50. About 73 euro per metre.
  • 80cm panel height: panels 55 euro 20, posts 7 euro 92, capping beam 29 euro 17, extras 1 euro 50. About 94 euro per metre.
  • 100cm panel height: panels 69 euro, posts 7 euro 92, capping beam 29 euro 17, extras 1 euro 50. About 108 euro per metre.
  • 120cm panel height: panels 82 euro 80, posts 9 euro 88, capping beam 29 euro 17, extras 1 euro 50. About 123 euro per metre.
  • 150cm panel height: panels 103 euro 50, posts 11 euro 84, capping beam 29 euro 17, extras 1 euro 50. About one hundred forty six euro per metre.
  • 200cm panel height: panels one hundred thirty eight euro, posts 14 euro 80, capping beam 29 euro 17, extras 1 euro 50. About one hundred eighty three euro per metre.

Posts at 1,25 m centre to centre means 0,8 posts per metre; for 200cm panels we count one post per metre. Post length is matched to wall height. All prices are our web shop prices per piece, including 21% Dutch VAT (October 2026). The cover is optional but firmly recommended.

Worked examples

Example 1: Pond edge — 10 metre, 50cm high

  • 20 pieces of Prolock Sigma 50 by 50cm at 17 euro 25: three hundred forty five euro.
  • 8 spruce posts of 10cm and 2,00 m at 9 euro 90: 79 euro 20.
  • 2 cover plates of 6,00 m at one hundred seventy five euro: three hundred fifty euro.
  • 1 connecting piece at 11 euro: 11 euro.
  • 2 cover caps at 4 euro 25: 8 euro 50.
  • Total: seven hundred ninety three euro seventy.

79 euro per running metre, including all components.

Example 2: Ditch bank — 25 metre, 100cm high

  • 50 pieces of Prolock Sigma 50 by 100cm at 34 euro 50: one thousand seven hundred twenty five euro.
  • 21 spruce posts of 10cm and 2,00 m at 9 euro 90: two hundred seven euro ninety.
  • 5 cover plates of 6,00 m at one hundred seventy five euro: eight hundred seventy five euro.
  • 4 connecting pieces at 11 euro: 44 euro.
  • 2 cover caps at 4 euro 25: 8 euro 50.
  • Total: two thousand eight hundred sixty euro forty.

114 euro per running metre, and with a total above two thousand five hundred euro delivery is complimentary.

Example 3: Heavy bank — 50 metre, 200cm high

  • 100 pieces of Prolock Sigma 50 by 200cm at 69 euro: six thousand nine hundred euro.
  • 51 spruce posts of 10cm and 3,00 m at 14 euro 80: seven hundred fifty four euro eighty.
  • 9 cover plates of 6,00 m at one hundred seventy five euro: one thousand five hundred seventy five euro.
  • 8 connecting pieces at 11 euro: 88 euro.
  • 2 cover caps at 4 euro 25: 8 euro 50.
  • 0 corner profiles of 3,00 m at 55 euro: 0 euro.
  • Total: nine thousand three hundred twenty six euro thirty.

one hundred eighty seven euro per running metre, with complimentary delivery included.

Note: For 200cm height we advise a strength check to see whether additional anchorage or sturdier posts are necessary. We make this check for free.

Costs you can save

1. No contractor needed

Prolock Sigma can be fitted yourself. Typical installation costs by a contractor: 40 to 80 euro per running metre. On a 25 metre project you rapidly save 1000 to two thousand euro.

2. No crane or heavy kit

For hardwood sheeting you often rent a crane at 500 to one thousand euro a day, plus a vibrating hammer. With Prolock, manual installation is the convention.

3. Zero care costs

No oil, stain or paint in 50 years. For hardwood walls: 20 oilings at 10 to 15 euro per metre. That is 200 to three hundred euro per metre in care over the life.

4. Free delivery

Houthandel Jan Sok delivers throughout the Netherlands free for orders from two thousand five hundred euro. A project from 25 metres or more will frequently attain that.

Cost compare: Prolock versus hardwood versus concrete

Over a period of 50 years (total cost of possession):

  • Prolock Sigma 100cm: buy 108 euro, fit yourself at 0 euro, care 0 euro, no substitution. Total over 50 years: 108 euro.
  • Hardwood 100cm: buy two hundred twenty five euro, fit 60 euro, care two hundred fifty euro, one replacement after 30 years at two hundred eighty five euro. Total over 50 years: eight hundred twenty euro.
  • Concrete sheet piling: buy three hundred euro, fit 100 euro, care 50 euro, no substitution. Total over 50 years: four hundred fifty euro.

Prolock Sigma is the most economical alternative over its complete life.

Frequently asked questions

How many Prolock panels do I need per metre?

Each panel is 50 cm wide, so you need two panels per running metre.

How long must the posts be?

As a guideline, the post length is at least 1.5 times the wall height. A 100 cm wall needs a 200 cm post.

What does the total cost depend on?

Mainly on the wall height, because that determines the panel height, the required post length and the post spacing. Capping profiles and accessories are additional.

Can I get a custom quote?

Yes. Send us the length and height of your bank, and we will prepare a quotation for your specific project.

Request a custom quote

Every circumstance is distinctive. The costs are determined by:

  • Soil type — soft ground requires extended stakes.
  • Corners — each corner needs a corner profile at 55 euro.
  • Access — sites that are difficult to access may add additional expense.
  • Height gap — greater height gaps require a sturdier construction.

Houthandel Jan Sok makes a free materials list and cost appraisal derived from your location. Send us a sketch or photos of the place and we will work out precisely what you require.

Call 0522-851551 or email info@houthandeljansok.nl. Shop: houthandeljansok.nl.

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