Choosing between safety glass vs float glass affects the safety, cost and performance of your windows and doors. This guide compares safety glass vs float glass in plain terms, so you can pick the right glazing for a home or business.
Float glass is ordinary annealed glass — perfectly useful for many general applications, but when it breaks it shatters into large, sharp shards. Safety glass (laminated or toughened) is engineered to break safely: laminated glass holds together on its interlayer, while toughened glass crumbles into small, blunt granules. Coetz™ specifies safety glass for its door range and confirms the exact window specification at the time of order. Here’s the difference in plain terms.
Quick comparison
| Feature | Float (Annealed) Glass | Safety Glass |
|---|---|---|
| If it breaks | Large, sharp shards | Laminated holds together; toughened crumbles into blunt bits |
| Impact safety | Low | High |
| Where it suits | General glazing away from impact zones | Doors, low-level and large glazing, impact-prone areas |
| Strength | Standard | Toughened is much stronger; laminated resists penetration |
| Cost | Lower | Higher — for the safety benefit |
| Coetz™ standard | Not standard | 6.38 mm Clear Laminated Safety Glass |
What is float glass?
Float glass (annealed glass) is the standard glass produced by floating molten glass on molten tin — it’s clear, flat and widely used. It’s a perfectly normal product for many general glazing situations that aren’t impact-critical. Its drawback is how it breaks: into large, sharp pieces that can cause serious injury, which is why it isn’t suitable for impact-prone locations.
What makes glass “safety” glass?
Two processes turn ordinary glass into safety glass. Laminated glass bonds two panes to a tough PVB interlayer, so if it breaks the fragments stick to the interlayer rather than falling out — it also resists penetration. Toughened (tempered) glass is heat-treated to be much stronger and, when it does break, shatters into small, relatively blunt granules. Both dramatically reduce injury risk compared with float glass.
Where safety glass is required
South African glazing practice (guided by standards such as SANS 10400-N) calls for safety glass in higher-risk locations — doors and side panels, low-level glazing, large panes and other impact-prone areas. The exact requirement depends on the position, pane size and application, so it’s best confirmed by a professional or registered glazier for your specific project. Coetz™ specifies glass according to the product and application rather than a one-size-fits-all rule.
The Coetz™ standard
Coetz™ specifies 6.38 mm Clear Laminated Safety Glass as standard on its aluminium door range, with other specifications (thicker laminates, toughened, tinted or solar options) available on request. For windows, the exact glass is confirmed with you at the time of order to suit the opening and application.
Advantages of safety glass
- Breaks safely — far lower injury risk
- Laminated holds together and resists penetration
- Toughened is much stronger than float
- Required in impact-prone locations
- Coetz™ standard for doors (6.38 mm laminated)
When is float glass acceptable?
- General glazing away from impact zones
- Some fixed, protected or decorative applications
- Where a professional confirms safety glass isn’t required
- Lower-cost situations with no impact-safety need
Which should you choose?
- Best for doors and low-level glazing: safety glass.
- Best for large panes: safety glass.
- Best for impact-prone areas: safety glass.
- Acceptable for general, protected glazing: float glass (confirm with a professional).
- Coetz™ door standard: 6.38 mm laminated safety glass.
Not sure which glass specification is right for your opening? Send us the details and we’ll help you specify it correctly.
What is the difference between safety glass and float glass?
u003cpu003eFloat (annealed) glass breaks into large, sharp shards. Safety glass is engineered to break safely — laminated glass holds together on its interlayer, and toughened glass crumbles into small, blunt granules — greatly reducing injury risk.u003c/pu003e
Is float glass ever acceptable?
u003cpu003eYes, for many general glazing applications away from impact zones. It is not suitable for doors, low-level glazing, large panes or other impact-prone areas, where safety glass is required. Confirm the requirement with a professional.u003c/pu003e
What glass does Coetz™ use as standard?
u003cpu003eCoetz™ specifies 6.38 mm Clear Laminated Safety Glass as standard on its aluminium door range, with other specifications available on request. Window glass is confirmed at the time of order.u003c/pu003e
Is laminated glass unbreakable?
u003cpu003eNo. Laminated glass can still break, but the PVB interlayer holds the fragments together rather than letting them fall out, and it resists penetration — which is what makes it a safety glass.u003c/pu003e
When is safety glass required in South Africa?
u003cpu003eGlazing practice (guided by standards such as SANS 10400-N) calls for safety glass in impact-prone locations such as doors, low-level glazing and large panes. The exact requirement depends on the application and is best confirmed by a professional or registered glazier.u003c/pu003e
Shop & related
Safety Glass Explained
Laminated vs toughened and glass thickness, in depth.
Looking for safety glass vs float glass? Coetz Glazing has you covered.
Coetz Glazing supplies safety glass vs float glass across the area.
Ask our team about safety glass vs float glass pricing and options.
We handle safety glass vs float glass from first quote to delivery.
Looking for safety glass vs float glass? Coetz Glazing has you covered.
Coetz Glazing supplies safety glass vs float glass across the area.
Glass Cut to Size
Laminated safety glass cut to your exact size.
Helpful next steps: Toughened vs Laminated · 6.38 vs 8.38 Laminated · AAAMSA Certificate Guide.
Safety glass vs float glass: which to choose
When you weigh up safety glass vs float glass, the deciding factors are safety and where the glass is used. Float glass is standard annealed glass that breaks into sharp shards, while safety glass (toughened or laminated) is designed to break safely or hold together. For any door, low-level window or public space, the safety glass vs float glass choice should almost always favour safety glass.
Is safety glass better than float glass?
For safety-critical positions, yes – the safety glass vs float glass comparison favours safety glass because it breaks safely or stays intact, protecting people from injury.
When is float glass acceptable?
Float glass is fine for high, small or protected panes where breakage is unlikely; elsewhere, safety glass is the safer choice.
The cost difference between safety glass vs float glass is usually modest next to the protection it buys, especially for doors and large panes. In South Africa, building standards require safety glass in many positions, so the safety glass vs float glass decision is often made for you by regulation as much as by choice. When in doubt, we specify the glass that keeps the installation compliant and the people using it safe.
A practical checklist for safety glass vs float glass
Specifications go wrong in predictable places. The checklist below covers what actually changes a quotation for safety glass vs float glass, drawn from the questions we field most often.
- The structural opening. Measure the brickwork opening rather than an existing frame, and check the reveal is square and plumb.
- Configuration. Confirm the opening arrangement, which panes open, and which way they open before anything is manufactured.
- Colour. Five finishes are stocked — black, white, bronze, charcoal and natural anodised — and some carry a premium.
- Glass. Coetz™ glazes as standard with 6.38 mm clear laminated safety glass.
- Supply only. Aluminium windows and doors are supplied, not installed, so allow for your own installer.
Work through it before you send an enquiry and safety glass vs float glass can usually be priced from the information alone. Anything unresolved is worth flagging so we can price safety glass vs float glass against both options.