Quality, Style & Security — Why Naperville Area Homeowners Choose Therma-Tru Entry Doors
Therma-Tru fiberglass entryways offer full door systems that are designed, built, and tested to the industry’s highest standards. That means when homeowners in the Naperville, IL, area choose to have custom-manufactured Therma-Tru entry doors installed, they can count on a long list of features to come with them. Read on to learn more about what makes Therma-Tru entry doors extraordinary in every detail.
Therma-Tru Entry Doors Are an Excellent Value for Naperville Area Homeowners
With beauty on the outside and brawn on the inside, Therma-Tru entry doors give Naperville, IL, homeowners the curb appeal they crave and an extremely durable, low-maintenance door system. To find out how you can take your front door to the next level, contact Next Door & Window to schedule an appointment with our home improvement experts.
Features & Benefits
Style – Therma-Tru fiberglass doors are molded from real wood grain with intricate detail. But unlike wood, these doors retain their beauty over time with minimal maintenance.
Durability – Wood and steel doors simply can’t equal Therma-Tru fiberglass for toughness. The fiberglass won’t crack, split, shrink, or swell. They’ll also never dent, ding, rust, or corrode.
Energy Efficiency – Therma-Tru fiberglass doors feature a polyurethane foam core with five times the energy efficiency of a wood door. Their door system includes high quality weather-stripping, a kerfed door bottom, and an adjustable sill that seals out air and moisture, and helps lower energy bills.
Security – Therma-Tru door systems feature an optional adjustable security strike plate that resists up to 450 lbs. of force. For even greater security, consider adding an optional multi-point locking system that secures the door to the frame in three places.
Factory Finished – A factory-applied and environmentally safe finish provides a durable, consistent, and attractive stain that won’t peel, chalk, yellow, or fade. There are a number of different stains to choose from.
Tru-Defense – For worry-free protection against water leaks and drafts as well as enhanced security and structural performance.
AccuGrain Technology – This technology meticulously replicates every detail of premium wood grain with all the advantages of fiberglass. It makes our fiberglass doors virtually impossible to tell from traditional wood doors. AccuGrain technology is the patented approach to a real wood grain appearance with all the advantages of Therma-Tru fiberglass. Meaning they won’t split, crack or rot like wood.

Grain Types
Therma Tru Classic Collections
American Style

The American Style Collection takes its cue from classic Craftsman, Bungalow and Cottage home designs, complementing their low-pitched roofs, wide eaves, exposed rafters and large porches. These doors are equally at home with a wide range of architectural styles including Mission, Monterey, Spanish and Tudor. Optional dentil shelf and four decorative glass styles add an authentic custom touch.
The American Style Collection features:
- The simple look of vertical grains and Craftsman styling
- Solid wood edges and sturdy full length lock stile
- 2-1/2” of additional height trim ability without rerailing
- Flush-glazed glass assembled directly into the door panel
- 8’ tall door styles available
- A solid polyurethane foam core with five times the insulating value of wood
- The option to stain or paint, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Canvas Collection

The Canvas Collection features:
- 2-1/2” of height trim ability without rerailing
- Architecturally correct design – up to 25% wider panels
- 8’ tall door styles available
- Solid polyurethane foam core with five times the insulating value of wood
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
h3>Classic-Craft Mahogany Collection

Classic-Craft Mahogany entryways also feature a solid polyurethane foam core with five times the energy efficiency of a wood door to help lower energy bills. Add a custom touch with four optional decorative glass styles.
The Mahogany Collection features:
- The look of authentic mahogany grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Solid wood edges and sturdy full-length lock stile
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Oak Collection

Stain or paint Oak entryways to match your home’s unique style, inside and out. The beauty of Classic-Craft is complemented by its durability, with a full system of door components designed to work together, trouble-free.
The Oak Collection features:
- The look of authentic wood grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Rustic Collection

The beauty is in the details. The Rustic Collection captures the character of rustic woods with style and causal elegance. But the won’t split, crack or rot like wood and they offer five times the insulating value of wood – a big advantage in the warmer climates where these architectural styles are so popular.
The Rustic Collection features:
- The look of authentic wood grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Sidelight glass textures coordinate with door glass and allow light in without compromising privacy
- Add authentic styling with decorative clavos and strap hinges
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Fiber Classic Mahogany Collection

As the trend for home interiors moves toward darker, richer wood tones in everything from cabinets to furniture, the Fiber Classic Mahogany Collection, with its deep, welcoming color, allows homeowners to extend this look to their exterior entrances, creating a cohesive look throughout the home.
The Fiber-Classic Collection features:
- The look and feel of real wood
- Select styles available in embossed or raised panels
- A solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
- A full system limited lifetime warranty
Door & Glass Styles
Fiber-Classic Oak Collection

Over the years, we’ve expanded the Fiber-Classic family to include many new styles, sizes, glass and panel designs, but the advantage of a Fiber-Classic fiberglass door remains the same – it won’t split, crack or rot like wood. Fiber-Classic combines top quality Therma-Tru craftsmanship and door system components with low maintenance and exceptional durability.
The Fiber-Classic Collection features:
- The look and feel of real wood
- Select styles available in embossed or raised panels
- A solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
American Style

The American Style Collection takes its cue from classic Craftsman, Bungalow and Cottage home designs, complementing their low-pitched roofs, wide eaves, exposed rafters and large porches. These doors are equally at home with a wide range of architectural styles including Mission, Monterey, Spanish and Tudor. Optional dentil shelf and four decorative glass styles add an authentic custom touch.
The American Style Collection features:
- The simple look of vertical grains and Craftsman styling
- Solid wood edges and sturdy full length lock stile
- 2-1/2” of additional height trim ability without rerailing
- Flush-glazed glass assembled directly into the door panel
- 8’ tall door styles available
- A solid polyurethane foam core with five times the insulating value of wood
- The option to stain or paint, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Canvas Collection

The Canvas Collection features:
- 2-1/2” of height trim ability without rerailing
- Architecturally correct design – up to 25% wider panels
- 8’ tall door styles available
- Solid polyurethane foam core with five times the insulating value of wood
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
h3>Classic-Craft Mahogany Collection

Classic-Craft Mahogany entryways also feature a solid polyurethane foam core with five times the energy efficiency of a wood door to help lower energy bills. Add a custom touch with four optional decorative glass styles.
The Mahogany Collection features:
- The look of authentic mahogany grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Solid wood edges and sturdy full-length lock stile
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Oak Collection

Stain or paint Oak entryways to match your home’s unique style, inside and out. The beauty of Classic-Craft is complemented by its durability, with a full system of door components designed to work together, trouble-free.
The Oak Collection features:
- The look of authentic wood grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Below is a sampling of glass styles that are available. Please ask one of our sales reps for additional information.
Classic-Craft Rustic Collection

The beauty is in the details. The Rustic Collection captures the character of rustic woods with style and causal elegance. But the won’t split, crack or rot like wood and they offer five times the insulating value of wood – a big advantage in the warmer climates where these architectural styles are so popular.
The Rustic Collection features:
- The look of authentic wood grain
- 2-1/2” of height trim ability without rerailing
- 8’ tall door styles available
- Sidelight glass textures coordinate with door glass and allow light in without compromising privacy
- Add authentic styling with decorative clavos and strap hinges
- Solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
Door & Glass Styles
Fiber Classic Mahogany Collection

As the trend for home interiors moves toward darker, richer wood tones in everything from cabinets to furniture, the Fiber Classic Mahogany Collection, with its deep, welcoming color, allows homeowners to extend this look to their exterior entrances, creating a cohesive look throughout the home.
The Fiber-Classic Collection features:
- The look and feel of real wood
- Select styles available in embossed or raised panels
- A solid polyurethane foam core with five times the insulating value of wood
- Can be stained or painted, just like a wood door
- An optional multi-point locking system for enhanced security
- A full system limited lifetime warranty