When planning a remodel, windows might not seem like the most exciting detail. But if you overlook the tempered window requirements, you could run into safety hazards — or worse, code violations that delay your project.
Tempered glass is all about protection. It’s designed to break into small, blunt pieces instead of dangerous shards. Building codes specify exactly where you need it, and knowing the rules helps you make smart design decisions. Let’s break it down and compare standard glass with tempered glass so you know when it’s required — and why it matters.
Standard Glass vs. Tempered Glass
Standard glass (also called annealed glass) is what you’ll find in most older homes. It breaks into sharp, jagged pieces that can cause serious injuries.
Tempered glass windows, on the other hand, are heat-treated to be four to five times stronger. If they do break, they shatter into small pebbles instead of shards — much safer for kids, pets, and anyone nearby.
👉 In short: standard glass is cheaper, but tempered glass is stronger and far safer in high-risk areas.
When Building Codes Require Tempered Windows
So where does tempered glass become a must-have instead of a nice-to-have? Most codes follow the International Residential Code (IRC), which specifies tempered glass in these areas:
Near Doors
Any window within 24 inches of a door (like sidelights or panels next to sliding doors) must be tempered.In Doors
Glass in doors — French doors, sliding doors, or glass storm doors — always requires tempered glass.Bathrooms
Windows inside showers or tubs need to be tempered.
Any glass within 60 inches of the water’s edge also requires tempering.Near Floors
If the glass is within 18 inches of the floor and larger than 9 square feet, it must be tempered.Staircases
Glass near stairs, landings, and ramps — where falls are more likely — also falls under tempered window requirements.
Check Our Recent Projects
Comparing Safety Impact
Standard glass: Works fine in areas far from impact risks, like small windows high on a wall.
Tempered glass: Critical anywhere slips, trips, or accidental impacts are likely.
For example, in a bathroom remodel, tempered windows aren’t just code — they’re common sense. A slippery floor and standard glass are a recipe for disaster.
Style Considerations
Tempered glass doesn’t have to limit your design. Modern tempered windows are available in:
Clear or frosted finishes.
Decorative patterns.
Energy-efficient coatings.
👉 That means you can meet safety requirements without compromising style. A frosted tempered window in a bathroom, for instance, adds both privacy and code compliance.
Cost Comparison
Yes, tempered glass costs more — usually 20–30% higher than standard glass. But consider the tradeoff:
Standard glass: Lower upfront cost, higher risk of injury, may not pass inspection.
Tempered glass: Higher upfront cost, much safer, guaranteed to meet code.
If you’re remodeling, failing an inspection because of the wrong glass type can be far more expensive than simply choosing tempered glass from the start.
Real-World Example
A couple renovating their master bath wanted a large picture window near their freestanding tub. They initially ordered standard glass to save money. When the inspector came, the project failed — the window was too close to the tub to meet code. They had to reorder tempered glass, delaying the project and doubling costs for that window.
👉 Lesson learned: know the tempered window requirements upfront, and you’ll save time, money, and frustration.
Final Thoughts
So, what’s the deal with tempered window requirements? They’re not just red tape — they’re safety measures designed to protect your family. Anytime glass is near doors, floors, stairs, or water, you’ll likely need tempered windows.
Yes, it costs more, but the peace of mind — and the assurance that your remodel will pass inspection — makes it worth every penny.
At America’s Dream HomeWorks, we make sure every remodel meets safety codes without sacrificing design. From stylish replacement windows & doors to expansive patio entries and exterior siding upgrades, our team ensures safety, beauty, and long-term performance.
✨ Explore our inspiration projects or contact us today to see how tempered glass fits seamlessly into your remodel.
