About Vexbox

Vexbox is a universal template for single or twin electrical back boxes, providing a tidier and more efficient method of installation and more importantly, at the same time, will reinstate the fire proof integrity of the wall. 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.
Vex box Variable Extension Box

Vex Box Product Extension Box

  • Comfortably fits both single and twin electrical back boxes
  • Manufactured from graphite based intumescent compound.
  • Handy depth gauge incorporated for efficient installation
  • 5mm depth adjustments
  • Strong and durable when constructed
  • Can be supplied as twin only or single only template

Vex Box Extension Box Specifications

Lugs – Can be removed where cables enter the socket box
Fold Lines – Enables the flat sheet to be folded with greater ease.
Depth adjustment – Snapped off to the depth of the plasterboard wall.
Locators – Allows Vexbox to sit into the socket box over the screw mounts.
Depth gauge – A removable tool to measure the correct level of extension for the template



A quick bend of the depth gauge frees it from the rest of Vexbox.
Vexbox
Insert the depth-gauge into the back of the box and measure off against the plasterboard.

Cut off excess at the depth adjustment lines according to the measure from the depth gauge.

For a single  box remove the waste section and fold at the specified points.

Use a pair of snips or equivalent to remove the knockouts where cables enter the  box.

Insert the constructed Vexbox into the back box and commence with the wall finishing.