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Product Description

VexBox–The Fire Rated Intumescent Extension Box

Vex Box is a variable extension box for use with dry lining systems, enabling electricians to quickly and easily create up to 12 different extension boxes from a single template.

Vex Box is a universal template for single or double socket boxes, providing a tidier and more efficient method of installation. Whether it’s new builds or refurbishments, the surrounding wall can be finished to a superior standard as the product extends the box flush with the plasterboard. 

Not only is the Vex Box fire rated it also solves an issue for finishing trades around sunken electrical boxes. Vex Box has a unique system whereby you can measure the depth of the socket and finish the linings flush with the plasterboard or wall finish. When the plasterboard has been cut out to allow for an electrical box sometimes there are 5 - 10 mm gaps around the box. The Vex Box allows for finishing trades to leave a tidy edged finish.

Pack includes – 20 Vexbox templates, 20 Vexplates, 10 Metres of Fibre Glass Tape, Installation Guide.


Fully tested for fire & acoustics
One application will do a single or double metal socket
Leaves clean and tidy edges

Please view related Videos below:

Data Sheet Downloads:

Fire Test Report

Acoustic Performance 

Installation Guide 

Installation Hints


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Fire Rated VexBox - 20 per Box

Item in Stock (20 Available)

Product Code: VBFR60

£95.00 £114.00 (inc. VAT)

You Will Earn 114 points which is the equivalent of £1.14