What Is Tempered Glass?
Tempered glass is regular glass that’s been heated to over 1,200°F and then rapidly cooled. This process creates stress in the glass, making it:
- 4–5x stronger than regular glass
- Much more resistant to impact
- Safer if it breaks
How Tempered Glass Is Made
- Regular glass is cut to size
- Placed in an oven heated to 1,200°F+
- Rapidly cooled (quenched) with air
- This cooling creates internal stress that strengthens the glass
Key Properties of Tempered Glass
| Property | Benefit |
| High Strength | Resists impact; hard to break |
| Safe Breakage | If broken, crumbles into small cubes (not sharp shards) |
| Thermal Resistance | Handles temperature changes better |
| Clear Appearance | Looks just like regular glass |
| Code Compliant | Approved for bathrooms, windows, railings |
Why Use Tempered Glass in Showers?
Bathrooms are wet, warm, and humid. Tempered glass: Resists moisture damage. Won’t warp or degrade. Is safety-certified for wet areas. Stays clear and beautiful for years.
Why Use Tempered Glass in Windows?
- Resists wind pressure
- Safer if broken (cubes instead of shards)
- Better insulation when sealed properly
- Long-lasting durability
Why Use Tempered Glass in Railings?
- Supports weight safely (required by code)
- If broken, creates small cubes (not dangerous large shards)
- Doesn’t fog or cloud with age
- Code-approved for all building types
Tempered vs. Regular Glass
| Feature | Regular Glass | Tempered Glass |
| Strength | Standard | 4–5x stronger |
| If broken | Large, sharp shards | Small, safe cubes |
| Safety | Lower | Higher (code-approved) |
| Cost | Cheaper | ~15% more |
| Best Use | Picture frames, decorative | Showers, windows, railings |
One Important Note
Tempered glass CANNOT be cut or modified after tempering. If you need a custom size, the glass must be cut, then tempered. This is why custom shower doors and railings require precise measurements upfront.
Call (980) 326-9819 to learn more about glass options.