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Dot & Dab Wall Fixing Solution

Corefix solves the problem of fixing to dot and dab walls (plasterboard over blockwork).  The patented system includes an engineered steel core that bridges the cavity and transfers the load to the blockwork behind.

  • Safe working load of 100kg using four fixings
  • Steel core transfers the load
  • Steel core prevents plasterboard crushing
  • For heavy loads including wall mounted TVs, shelves, cabinets and radiators

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Corefix is Ideal for

Wall mounted large screen TVs, wall hung cabinets, shelves, boilers, radiators, sanitaryware and much more! Corefix has been designed for dot and dab walls, where the plasterboard has been used to cover blockwork, but is suitable for use within masonry and blockwork walls.

Required for Most Modern Houses

Obtaining a secure fixing to a dot and dab wall is notoriously difficult, as the plasterboard is largely unsupported. Corefix solves this problem by securing the load, by way of the steel reinforcement to the solid wall behind, and not to the plasterboard.

Easy Installation

Quick and easy installation with no specialist tools required. All that is needed is a 10mm masonry drill, hammer and screwdriver. The straight-forward fixing system comprises of a patented plug, metal insert and screw.

Huge Load Rating

Tested to over 250kg (without failure) with a safe working load of 100kg based on 4 x Corefix fixings. Corefix has been independently tested for tensile and sheer strength.

Robust and Dependable

Using Corefix the load is supported by the solid wall behind, not the plasterboard. Corefix is well-engineered using quality materials and heavy duty components, with the metal parts being plated for corrosion resistance.

No More Bowed Plasterboard

Corefix bridges the void between plasterboard and the solid wall behind with STEEL, thereby preventing the plasterboard from crushing into the void (as is common with many other types of fixing).

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Using Corefix to Fix Heavy Items to Dot & Dab Walls 

Fixings reliant on the strength of the plasterboard alone may not be suitable to reliably fix heavy items. With its unique engineered steel core, Corefix solves this problem by transferring the load to the solid blockwork behind the plasterboard. Suitable for most modern homes with drylined/dot & dab walls, Corefix has a 100kg safe working load on 4 fixings (73kg in lightweight aerated concrete).  

Will Corefix Support…? 

Corefix fixings are ideal for fixing heavy items such as: 

  • Wall mounted TVs 
  • Radiators 
  • Kitchen cabinets 
  • Boilers 
  • Wall hung toilets & sinks 
  • Heavy load shelving 

Corefix has been designed from the ‘ground up’ over two years with the goal to manufacture a fixing to carry extra heavy loads on dot and dab walls. Unlike plastic versions, the steel core in this cavity wall fixing transfers the load from the plasterboard to the solid blockwork or masonry material behind, and whilst other frame fixings claim to perform the same role, these can severely distort or crush the plasterboard into the void. Heavy items such as TVs, boilers or radiators would normally be supported on at least four fixings, and Corefix has been tested to specifically to 250kg (without fail) on four fixings.  

How Much Does a Wall Mounted TV Weigh? 

This clearly depends on the size of the television but with all the major brands such as Sony, Samsung & Panasonic all making flat screen TVs up to a staggering 100 inches and above in some cases, it really is important to know the weight of your TV and know your hollow wall plasterboard fixing will support the load. Below are some approx. weights for standard size wall mounted flat screen TVs* 

32″   5.1kg 

40″   6.4kg 

43″   9.5kg 

50″   15.6kg 

55″   17.8kg 

60″   24.8kg 

65″   28.4kg 

75″   31.3kg 

* The above TV weights were based on a Samsung range of TVs and were correct at time of writing, please check weights of specific brands and models to verify accuracy. 

How to Install Corefix 

Corefix can be installed in less than one minute, without the need for specialist tools – all you need is a 10mm masonry drill, hammer, and a screwdriver: 

  1. Mark required location of wall bracket fixings. A minimum of four Corefix dot & dab wall fixings should be used when fixing heavy items – if in doubt, use more!  
  2. Drill a hole through the plasterboard and into the solid wall behind, ensuring the total depth is a minimum of 100mm. 
  3. Remove any dust or debris from the hole before gently tapping the Corefix plug into place until the flange sits against the plasterboard. 
  4. Gently tap the steel core home until flush with the plug. 
  5. Offer the bracket/fixture up to the wall and screw to the wall using the supplied screws, ensuring two people support any heavy items. Mount heavy items such as TVs only after the bracket has been secured onto the dot and dab wall and screws are tightened up. 

The steel core’s length allows for a maximum void depth of 25mm. 

Standard Corefix 100 has a maximum fixture thicknessof 10mm. For thicker fixtures, we recommend Corefix 120, which comes with a 120mm screw, allowing for fixtures of up to 30mm thick. Find Corefix 100 and Corefix 120 HERE. 


Corefix fixings feature: 

  • 100mm screws, plated for corrosive resistance (120mm on Corefix 120) 
  • Heavy-duty thick-walled steel core 
  • Precision engineering for a trusted fit 
  • Strong shoulder for secure steel core insert 
  • Secure flange to set consistent installation depth 
  • Multiple anti rotation ribs 
  • Aggressive serration angle for secure anchoring 

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