Glass Options

Associated products

Commercial use

Residential projects

Commercial projects




cantilevered glass balcony

Glass Balconies

Glass can be engineered to create a minimal glass balcony that can be cantilevered from the external face of a building or from an internal level change.

The number of structural supports or frames required for a glass balcony installation will differ depending on the structure of the original fixing, size, and weight of the load. An architectural glass company like IQ Glass will do all detailed calculations as well as provide any structural engineering that may be required for the structural glass balcony.

Glass balustrades can then be integrated into the structural glass assembly for a clear frameless safety barrier against the level drop. The structural glass balustrades can easily be integrated and fixed to whatever supporting method has been opted for, as always, to create a neat modern appearance.

Minimal drainage can be integrated into supporting steel sections on external glass balconies if necessary. IQ’s flush threshold drain can take a high enough water volume that the balcony may be able to be drained back toward the building, meeting the flush threshold drain before any opening doors.

Juliete Balconies

If a cantilevered balcony is not desired IQ can help create impressively minimal Juliete balconies by integrating frameless glass balustrades into our minimal door systems.

The frameless balustrade can be minimally integrated into the base track of our slim framed sliding glass doors to create the appearance that this safety balustrade isn’t even there. The structural glass support seems invisible when the slim framed doors are closed but when open acts as a robust safety barrier.

For other opening door system, such as bi-folding doors or casement doors, we can integrate a balustrade either on the internal floor structure or connected to the external wall structure for a minimal and frameless Juliette balcony design.

cantilevered structural glass balcony with steel support


Large Structural Glass Balcony

Glass Specification

To create a fully glazed balcony IQ Glass can install a glass floor and glass balustrades onto the balcony.

The glass specification for a glass floor is 3x10mm toughened outer with an argon-filled cavity and a 2x6mm toughened laminated inner with a low e coating. Anti-slip finishes are recommended for a glazed floor on a balcony to reduce injury, this can be done by using a sandblasted finish or a ceramic frit pattern.

Structural silicone joints can be used to connect multiple glass panels within a glass floor and 4x10mm toughened laminated glass beams can be integrated to support glass joints of over 1.3m. Steel T or Box sections can also be integrated into the design to support glass joints of over 1.3m.

The glass specification for a frameless glass balustrade is 10mm x 2mm toughened laminated glass with a 1.5mm interlayer. A typical height for a glass balustrade is 1.1m but higher options are available if the project requires higher balustrades. The maximum length of a glazed panel for a balustrade is 6m.

ASK US ABOUT OUR Glass Balconies


Commercial use

Glass Balconies

Creating an all glass balcony is ideal for maximising natural light, ventilation and views for larger scale properties. Glass balconies are a popular choice for multi-residential projects where an outdoor space or extra ventilation may be required on the upper levels of the building. 

Glass balconies in commercial projects are usually paired with a sliding glass door to provide access to the external area. Integrating these balconies into the design of a commercial project provides an ideal external space on high levels of the buildings, helping to maximise the natural light intake and ventilation into the property.

IQ Projects is the specialist commercial division of the IQ Group - www.iqprojectsuk.com


Invisio Structural Glazing Brochure


Structural Glass Balustrade - Product Information Sheet


What is Structural Glass

Slip Resistant Options for Walk on Glass