Flush-Glazed Glass
Intentional design for exceptional performance — sleek frameless flush-glazed glass provides increased protection against air and water infiltration.1
We’ve designed the only door you’ll ever need.TM
Proven to perform, protect and preserve.
A Therma-Tru complete door system is the culmination of more than 60 years of expertise in material science, engineering and manufacturing. We design on-trend entryways and test them against extreme environmental conditions — far beyond industry standards — to ensure maximum durability and safety. And we back our systems with comprehensive, industry-leading warranties.
Our Network Advantage
Sill
A high-performance threshold provides a solid stepping surface and forms a tight seal at the bottom of the door system to help channel moisture away from the home.
4X
The Insulation
Pressure-Injected Foam Core
Our fiberglass doors feature a pressure-injected foam interior, providing 4X the insulation of a wood door2, helping enhance your home’s energy efficiency.
Flush-Glazed Glass
Intentional design for exceptional performance – sleek flush-glazed glass provides increased protection against air and water infiltration.1
Sill
A high-performance threshold provides a solid stepping surface and forms a tight seal at the bottom of the door system to help channel moisture away from the home.
4X
The Insulation
Pressure-Injected Foam Core
Our fiberglass doors feature a pressure-injected foam interior, providing 4X the insulation of a wood door2, helping enhance your home’s energy efficiency.
Door Bottom Sweep
A dual-bulb, dual-fin design helps maintain tight contact with adjustable sill caps and creates an added barrier against moisture.
Sill Pan
The sill pan system catches and sheds water away if it gets in behind the frame, brickmould, or over the sill, stopping water infiltration in its tracks with an added layer of defense for your home’s subfloor.
Weatherstripping
Two points of contact provide a continuous form-fitting barrier around the door jamb for extra protection against leaks.
Ball-Bearing Hinges
Choose a door that will last generations — Therma-Tru ball-bearing hinges have been slam-tested to sustain more than 150 years of hellos and goodbyes.
Sill, Sweep and Corner Pads
A tight seal is formed when the door is closed, offering elevated protection against water infiltration.
Weatherstripping
Two points of contact provide a continuous, form-fitting barrier for extra protection against leaks.
Ball-Bearing Hinges
Choose a door that will last generations — Therma-Tru ball-bearing hinges have been slam-tested to sustain more than 150 years of hellos and goodbyes.
Sill, Sweep and Corner Pads
A tight seal is formed when the door is closed, offering elevated protection against water infiltration.
Proven Performance
Your front door is your home’s first line of defense against the elements — it should protect against water infiltration, help improve your home’s energy efficiency, and provide unparalleled durability that lasts generations.
50%
More Protection
Composite Door Frame
50% more protection against forced entry3 — our rot-free composite door frame outperforms wood where it matters most.
30%
Tougher
Fiberglass Door
Fiberglass entry doors are tough, providing 30% more protection against forced entry than steel.5
Flush-Glazed Glass
Door systems with flush-glazed glass are designed and tested to withstand wind forces up to 167 mph.4
Multi-Point Locking System
Three points of protection — at the top, middle and bottom of the door — enhance your home’s security vs. a traditional deadbolt.
50%
More Protection
Composite Door Frame
50% more protection against forced entry3 – our rot-free composite door frame outperforms wood where it matters most.
Fiberglass Door
Fiberglass entry doors are tough, providing 30% more protection against forced entry than steel.5
Flush-Glazed Glass
Door systems with flush-glazed glass are designed and tested to withstand wind forces up to 167 mph.4
Multi-Point Locking System
Three points of protection – at the top, middle and bottom of the door – enhance your home’s security vs. a traditional deadbolt.
Multi-Point Locking System
Handleset
Easily engage the multi-point locking system with a simple 90-degree twist of a thumb.
Locking Pins
Positioned at the top and bottom of the door, the locking pins add an additional layer of protection you won't find in a deadbolt alone.
Proven Protection
Your family’s safety is your top priority — and ours. When you lock your door, you should feel confident that who and what matters most is safe and secure.
16%
More Natural Light
Flush-Glazed Glass
Expand your view by 16%6 — choose flush-glazed glass for more natural light and a sleek, uninterrupted aesthetic.
Resists Dents & Dings
Fiberglass Doors
A durable fiberglass skin resists dents and dings, providing unsurpassed beauty for a lifetime.
PrismaGuard
Pre-Finished Doors
We’ve got you (and your door) covered — choose PrismaGuard for a worry-free finish that stands the test of time.
Lasting Beauty
You deserve an extraordinary entryway — one that honors your home’s architectural details and provides a warm welcome for friends and family. When you choose a Therma-Tru door, you’re choosing a look that lasts — providing a timeless backdrop that looks as good as it did on day one.
Technical Information
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Appendix
- Comparison of a flush-glazed full-lite door and a Lip-lite full-lite door.
- Comparison of fiberglass to wood doors (both without glass).
- Comparison of pendulum impact test results for Therma-Tru composite door frame and standard finger-jointed Pine wood door frame, both with similar pre-hung doors.
- Must be installed as part of a Therma-Tru door system in compliance with a Therma-Tru product approval.
- Comparison of pendulum impact test results for Therma-Tru doors in steel versus fiberglass.
- EnLiten flush-glazed designs offer up to a 16% increase in visible glass area compared to conventional lite frames.