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How to measure for a Juliet Balcony?

Juliet Balcony

Thinking of buying a Juliet Balcony but unsure exactly how to get the measurements right? Measuring for a Juliet Balcony is fairly straight forward however there are some considerations to be made.

1. The Juliet balcony needs to overlap the window opening so that it can be fixed to something securely.

In order to get the correct measurement, you would need to measure the structural opening of your doors from brick to brick.
Structural openings do vary however most windows and doors are manufactured to standard sizes of 1200, 1500, 1800 and 2100mm.

The Juliet balcony you are installing must extend past the structural opening on each side far enough to achieve a solid fixing, we normally suggest around usually around 150mm per side.

You will find on our website variations that increase by 100mm increments. This will allow for the 150mm extension each side as you will be specifying you fixing type at the same time (i.e.: concrete, plastic etc).

Sometimes you may need a wider Juliet balcony to account for rough stonework or bespoke sizing to centralise fixings onto a solid timber joist for example. Our Antonio Juliet Balcony range is perfect for wider Juliet Balconies.

2. Your balcony must be installed to a minimum height of 1100mm from the internal floor level

This is basic requirement to comply with the current building regulations and you can be assured that all Origin Juliet balconies are constructed to 1100mm height.

In order to measure your height, you need to measure vertically from the finished floor level inside the property where you can stand- so put simply, the top of the balcony rail should finish a minimum of 1100mm above this point (whilst not increasing the gap below the balcony).

3. No gaps

There must be no gaps in the balcony system greater than 99mm. In the Industry this is better known as the ‘100mm rule’ This regulation states that no sphere of 100mm can pass through any area of the balcony (normally this would be checked using a sphere by any building inspector). We account for this in our manufacturing so you need not worry too much about this.

This guide is general to measuring for a Juliet Balcony. We do provide more detailed visual examples for some of our Juliet Balcony ranges such as Skyforce. Find out more about measuring for a Skyforce Juliet Balcony

For a free quote on a Juliet Balcony, try our Juliet Balcony Planner today.

For information relating to planning permission on Juliet Balconies, see our previous blog

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Skyforce Top Mount according Test BS 6180 (0,74 kN/m)Tested to Aluminium
GLASS WIDTH UP TO GLASS THICKNESS (tempered glass) GLASS HEIGHT
1000mm 12.76mm 300mm – 1100mm
1700mm 16.76mm 300mm – 1100mm
3000mm 21.52mm 500mm – 1100mm
(According test BS 6180) Tested on the basis that the minimum thickness of the aluminium frame is 1.4mm.   FIXING TO PVC FRAME SkyForce Top Mount Tested to Plastic According to the German Standard ETB Directive
GLASS WIDTH UP TO GLASS THICKNESS (tempered glass) GLASS HEIGHT
1600mm 12.76mm 700mm-1200mm
2100mm 16.76mm (17.52) 900mm-1200mm
2600mm 21.52mm 800mm-1100mm
Tested on the basis that the metal insert in the frame is a minimum of 1.5mm in thickness. I attach a copy of the test report which is in German but which I think we can include anyway.   FIXING TO STEEL OR CONCRETE Skyforce is fully tested at a height of 1.1m up to a width of 3m when fixed to steel or concrete.
Glass H = Glass Height L = Glass Length Working Line Load
6.62 min. 300mm - max. 1100mm max. 1100mm 3.0 kN/m
6.62 min. 500mm - max. 1100mm max. 1100mm 3.0 kN/m
8.84 min. 300mm < 500mm max. 1100mm 3.0 kN/m
8.84 min. 500mm - max. 1100mm max. 1100mm 3.0 kN/m
8.84 min. 600mm - max. 1100mm max. 1700mm 1.5 kN/m
8.84 min. 300mm < 600mm max. 1700mm 0.74 kN/m
10.10.4 min. 300mm < 500mm max. 500mm 3.0 kN/m
10.10.4 min. 500mm - max. 1100mm max. 1100mm 3.0 kN/m
10.10.4 1100mm max. 3000mm 0.74 kN/m
10.10.4 min. 300mm < 1100mm max. 3000mm 0.36 kN/m
FIXED TO TIMBER OR STONE/BRICKWORK   No test data available.   For more comprehensive test data, click here