Fixings


Should I ask an engineer?

Yes! Best practice is to seek the advice of a structural engineer before you order your balcony.

As a general rule of thumb, fixing into brickwork, blockwork and masonry is relatively straightforward. In the majority of cases, structural timber and solid stonework are also acceptable fixing surfaces but our generic advice could be less useful. Finally, steel, uPVC and other materials may or may not be suitable at all and we would find it difficult to give even very broad generic advice. You will find that most fixing solutions are easily sourced from local DIY and fixings suppliers.

IMPORTANT DISCLAIMER - The information on this page is provided for guidance only and - because every wall and structure is different - Forjj accepts no liability for the incorrect specification of fixings. You should always seek clarification from a structural engineer to suit your own unique circumstances.

Forjj are not structural engineers and cannot give specific project fixing specifications but if you have a general query after reading this page give us a call and we’d be happy to point you in the right direction!


Help, I don’t know what I’m fixing to?

To decide which fixings you require (and whether it will be possible to have a balcony installed at all) you really need to know what you are fixing to. Good starting points for advice would be a builder, surveyor, structural engineer or other relevant qualified tradesperson.


Can I fix into uPVC?

Quite often the answer is no, but consult a structural engineer or your uPVC unit manufacturer for advice and fixing specification. It is very likely that you will be advised that standard balcony fixing plates are not suitable - please get in touch as we can manufacture bespoke fixing plates (quantity, location, design) in line with the advice you receive.


My material isn't listed here?

Fixing to more unusual building materials can usually be achieved but consult a structural engineer for advice and fixing specification appropriate to your situation before you order your balcony. If you are advised that standard balcony fixing plates are not suitable - please get in touch as we can manufacture bespoke fixing plates (quantity, location, design) in line with the advice you receive.



Fixing into masonry or brick

We typically use M10x125mm resin fixed studding. Our resin of choice is usually Rawlplug R-KEM II but sometimes others are necessary.

  • Fixing holes must be drilled at a right angle to the building.
  • Bearing in mind the minimum height required for a balcony, it is best for as many of the fixings as possible to be central on a brick. Whilst this is the ideal, edges and mortar joints are often acceptable too. As always, seek professional advice.
  • Your fixing must penetrate the brick by no less than 90mm.
  • With hollow bricks and blocks it is always necessary use sieves (also known as mesh sleeves).

Fixing into solid concrete

We typically use M10 x 125mm resin fixed studding. Our resin of choice is usually Rawlplug R-KEM II but sometimes others are necessary.

  • Fixing holes must be drilled at a right angle to the building.
  • Bearing in mind the minimum height required for a balcony, it is best for as many of the fixings as possible to be set away from concrete edges & joints.

Fixing into timber

We typically use M8 coach screws with a minimum penetration of 75mm. Not all timber can support the forces applied to a balcony. It is always best to confirm suitability of timber frame to receive a balcony with the timber frame manufacturer or a structural engineer.


Fixing into a steel frame

This is possible but, due to significant variation in strength, thickness and suitability, you should consult a structural engineer regarding the appropriate fixings.


Fixing into solid stonework

Generally, see masonry & bricks (above).

The fixing plate should make good contact with the stonework so rough-hewn stone may require additional measures to make a safe connection. If in doubt, seek the advice of a structural engineer, builder or stonemason before you order. If you are advised that standard balcony fixing plates are not suitable please get in touch as we can manufacture bespoke fixing plates (quantity, location, design) in line with the advice you receive.



For more information please contact us and we will be happy to help.