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Juliet Balcony Glass
HomeProductsJuliet Balcony

Juliet Balcony Glass

Safety barrier glass for full-height door openings on upper floors — doors open fully, falls are prevented. Minimum 1100mm height from finished floor level. 10mm toughened minimum; toughened laminated from 13.5mm (1.5mm structural interlayer) where the system has no top rail.

Min 10mm1.5mm InterlayerMin 1100mmBS 6180Class 1(B)1

Critical Safety Requirement

Juliet glass is the fall barrier. Our minimum specification is 10mm toughened, used only where the system carries a continuous structural top rail. Where the glass alone spans the opening with no rail — most frameless channel systems — toughened laminated from 13.5mm (1.5mm structural interlayer) is required, because it stays intact after breakage. All builds to BS 6180 loading.
Overview

Juliet Balcony — Safety Barrier

A Juliet balcony provides a transparent safety barrier at a full-height door opening on an upper floor, allowing the doors to open fully for ventilation while preventing anyone from falling. The glass must be toughened laminated to ensure it stays intact after breakage — toughened-only glass shatters completely, removing the barrier entirely.

See how the doors open fully while the barrier stays firm:

Juliet Balcony
Full-Height vs Part-Height Barrier — Doors Open, Barrier Holds
Full-height barrier
min 1100mm above FFL
Juliet panel — part-height (min 1100mm)
min 1100mm above FFL
Both configurations meet the 1100mm minimum barrier height above FFL. A full-height barrier extends further, glazed all the way to the door head; a part-height panel stops right at the regulatory minimum, with the open door visible above.
Grey glass Juliet balcony on a brick apartment building
Grey glass Juliet balcony on a brick apartment building

Configurations

Juliet balcony glass across full-height doors
Juliet balcony glass across full-height doors
TypeBuild-UpThicknessWeight/m²Application
ToughenedT1010.0mm25 kgWith continuous structural top rail
Toughened laminatedT6+1.5+T613.5mm31 kgFrameless / channel systems
Toughened laminatedT8+1.5+T817.5mm40 kgWider openings
Toughened laminatedT10+1.5+T1021.5mm50 kgMaximum spans / heavy duty
Toughened laminated SGPT6+1.5SGP+T613.5mm31 kgMaximum post-break stiffness

All laminated builds use a 1.5mm structural interlayer — the only interlayer we run.

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Specifications

Frameless Juliet balcony glass
Frameless Juliet balcony glass
Glass
10mm toughened minimum; toughened laminated 13.5mm+ (1.5mm interlayer) for frameless systems
Min Height
1100mm from finished floor level (Approved Document K)
Impact Rating
Class 1(B)1 per pendulum impact test
Barrier Load
0.36 kN/m minimum (residential, BS 6180)
Edge Finish
Polished all round as standard
Options
Clear, low-iron (Optiwhite), tinted, frosted

Before You Fit: Site Care

  • Plan the lift first. Balcony panels are laminated and heavy — suckers past 25 kg, mechanical lifting past 60 kg, and first-floor access sorted before delivery day.
  • Store it standing. Vertical on an A-frame, sheeted or indoors, edge protection on until the panel meets its channel.
  • Fit inside 28 days. Above 5°C, with the glass at room temperature.

Manufacture time depends on the laminate build — exact lead time comes with your quote.

Related Products & Glass Types

FAQ

Common Questions

1100mm from finished floor level, in line with Approved Document K.
Only where the system carries a continuous structural top rail — that is our 10mm toughened specification. Where the glass alone spans the opening (frameless channel systems), toughened laminated from 13.5mm is required: it stays intact after breakage, so the barrier remains.
Standard lead times of 3-5 working days apply; laminated builds may take slightly longer.
Juliet glass is supplied to your opening size with polished edges as standard, ready to fit the door manufacturer's channel or bracket system.
Clear, low-iron (Optiwhite), tinted or frosted.

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