Trade toughened safety glass
Toughened (tempered) safety glass, cut, edged and drilled to your sizes before it is heat-treated. Toughened glass is several times stronger than ordinary float glass and breaks into small pieces rather than sharp shards.
- Product code
- TG-G03
- Guide trade price
- £45 to £120 per m², ex VAT, supply only
- Lead time
- We confirm the production and delivery date for toughened safety glass when your order is acknowledged.
- Delivery
- UK-wide to site, yard or unit, priced on your quote
- Category
- Sealed units and glass
Typical layout. W and H are the frame or glass sizes you give us.
What is in the specification?
- Toughened to BS EN 12150
- Thicknesses typically from 4mm to 12mm
- Polished or ground edges
- Holes, notches and cut-outs before toughening
- Clear, low-iron, tinted and obscure options
- Safety marking on each piece
Options you can add
- Low-iron extra clear glass
- Polished edges
- Holes and cut-outs
- Obscure and satin finishes
- Heat-soak testing (on request)
Who orders trade toughened safety glass?
Mostly glaziers and glass merchants, window and door installers, shopfitters and property maintenance companies. Typical uses include glass in doors and side panels; low-level glazing; shower screens, splashbacks and balustrade infills.
Toughened glass cannot be cut, drilled or edged once it has been toughened. Every hole, notch and cut-out must be on the order before processing.
Each toughened pane carries a permanent mark to BS EN 12150, which helps when the installation is inspected.
For balustrades and structural uses, the glass type and thickness should come from the system designer or engineer, not chosen on site.
Low-iron glass removes the green tint of standard float, which matters on thicker panes and splashbacks.
How should you measure?
Toughened glass cannot be cut or drilled after toughening, so all holes and cut-outs must be on your drawing before we process it.
Which building regulations apply?
Under Approved Document K, glazing in critical locations (doors, and side panels within 300mm of a door, up to 1500mm above floor level; other glazing below 800mm) must break safely, be robust or in small panes, or be permanently protected. Toughened and laminated safety glass are classified to BS EN 12600. Replacing only the glass in an existing frame is generally treated as a repair rather than notifiable work.
Wales
In Wales, safety glazing in critical locations, such as doors, side panels and low-level glazing, is covered by Approved Document N. Safety glass is classified to BS EN 12600. Replacing glass alone in an existing frame is generally treated as a repair.
Scotland
In Scotland, glazing in areas where people could collide with it must follow the safety glazing standard in Section 4 of the Technical Handbooks. Safety glass is classified to BS EN 12600.
Northern Ireland
In Northern Ireland, glazing safety in critical locations is covered by Technical Booklet V. Safety glass is classified to BS EN 12600.
More detail: Approved Document L guide safety glazing guide. Your installer or designer remains responsible for compliance and any notification.
How ordering works
Measure and schedule
Measure each opening and list the sizes in millimetres.
Request trade prices
Email the schedule or send a photo on WhatsApp for an itemised quote.
Sign off the details
We send an acknowledgement; you check and approve it.
Plan the fit
We confirm the delivery date so you can book your fitters.
Questions trade customers ask
Can toughened glass be cut to size after it is made?
No. It must be cut and processed before toughening. Give us exact sizes and all holes and cut-outs.
Where do I need safety glass?
Building regulations require glazing in critical locations, such as doors, side panels and glazing near floor level, to break safely, be robust or in small panes, or be protected. Toughened or laminated safety glass is the usual way to meet that.
What is heat-soak testing?
An extra process that reduces the risk of spontaneous breakage from nickel sulphide inclusions, often specified for overhead or high-risk glass.
Is toughened glass marked?
Yes, each piece carries a safety marking.
Trade toughened safety glass by area
Area pages cover delivery and the regulations that apply where the job is.