The Scorpion end represents a key feature of the products’ unique selling point.



When Ashley was an apprentice, he was set the tedious task of cleaning out the cavity tray between two brick walls. This is often found directly above the finished floor level.

Often the only practical tool is a piece of timber such as a roof batten, pushing the mortar that has fallen into the cavity, towards deliberate 'coring holes’ to ensure the cavity tray is clean.

Ashley has put a lot of thought into potential solutions, before coming up with this practical, clean, and time-saving idea.



The tray connects in series, to enable a custom length for each specific job. At the ends of the tray are male and female profiles that snap together via the help of a bump fit. This connection works as just a friction fit but the bump has been added to give a more secure join.

Due to the profile of the tray, it can easily be flexed out of the bump should the user squeeze the walls together. The female join has a capping at the top which prevents the parts from coming apart when the tray is pulled out of the cavity.

The two ends slot together with a tolerance of 0.20mm, this will give a firm connection when clicked in place. The plastic will then easily flex to release when pressure is applied by the user.


The tray will need to be easily maneuvered out of the cavity, when in series. This end component slots onto the female end of the tray with the same connection.

Secured to this piece is a lifting eye bolt. This loop allows a carabiner to be joined and therefore a series of options for the handle/ pulling device.

Using a rope or similar will allow the user to pull the tray out with ease at any desired angle. There is also no need for a big chunky handle, a rope is much more cost-effective and can easily be replaced.


The end of the tray (last in series) will be open and therefore the collected mortar is at risk of spilling out.

An additional end component blocks the tray to prevent any spilling. Also, having raised walls in this area should stop any mortar from toppling over the back when the tray is pulled from the cavity.

A male join connects to the female end of the tray.

How To use Cavity Tray Cleaner

Below is a short video demonstrating how easy it is to connect and insert the Cavity Tray Cleaner into the wall cavity.