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Cobra® WRENCH board straightener

Very useful to fix twisted boards

redresseur de lame de terrasse
Time saving
redresseur de lame cobra wrench
  • Allows to straighten deformed deck boards with edge deflection
  • Easy to use, for a right or left handed user
  • Ergonomic and lightweight tool
  • Supplied with pins of differents sizes, ajustable to the dimensions of the joists
  • Light and easy to handle

The Cobra® WRENCH is an innovative, ergonomic deck board straightener. It makes it very easy to straighten deck boards that have been subjected to warping or twisting. This unique tool helps to save precious time when installing a decking project.


Use of Cobra® WRENCH

Cast aluminium
Stainless steel pins
Rubber handle
1,5 kg
Joist width
From 28 to 150 mm
1 hand : right- or left-handed

The most efficient deck board straightening tool

The Cobra Wrench is the most efficient board straightening tool in the market. It is used to hold deck boards straight while fasteners (clips or screws) are being installed. It applies much more bending power than other methods of straightening deck boards, thanks to the leverage power. 

A practical and lightweight tool to save installation time

Made of aluminium, the deck board straightener is a lightweight tool.  It can be operated with one hand.  Adjustable and reversible, it can be used by both right- and left-handed people and is practical in any situation.

A simple swing of the handle will make any extremely bowed board straight.

Right hand - Left hand

The Cobra® WRENCH can be assembled for use with either the right or left hand.  

Suitable for all joist dimensions

The Cobra® WRENCH board straightener is supplied with 2 stainless steel pins so it can adapt to all joist height configurations.  The pins can be set in different positions on the tool head to provide the best fixing on the joists.

Place the Cobra Wrench tool on the joist and Rotate the handle to straighten the deck boards.

A single movement, a few seconds, and your board is straightened.

2 sizes of stainless steel pins are included with the deck board straightener to adapt to all joist sections, from 28 to 150 mm.

Technical documents

  • Product sheet- Cobra WRENCH.pdf
  • COBRA-CATA2021-GB.pdf

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