An Insulated Black French Single Door with Classic Grid Glass

This thermal break matte black 8 lite iron French single door is designed for exterior entries that need natural light, a clean square-top profile, and better insulation than a standard non-thermal-break iron door. The single-door layout works well for front entries, side entries, and narrower openings where a double door is not necessary.

The 8-lite grid gives the door a classic French door look with more visual structure than a full-glass panel. The matte black frame keeps the design clean and defined, making it a strong fit for modern, farmhouse, transitional, and classic home exteriors.

TFD320 is custom made and can be adjusted to fit the project. Although the photo shows a single square-top door without sidelights or a transom, the same 8-lite design can be customized as a double door, a wider single door, or a full entry system with matching sidelights or a transom. Size, glass finish, color, swing direction, handle style, jamb depth, door top design, and thermal break specifications can also be customized.

Who This Door Is Best For:
This door is best for homeowners who like the FD320 8-lite matte black French door style but need improved insulation for an exterior entry.

It works well for colder states, hot climates, or homes with large seasonal temperature changes where a thermal break frame is more suitable than a standard iron door.

TFD320 is also a good option for customers comparing thermal break French doors, black iron front doors, insulated steel French doors, and custom iron entry doors, especially when they want a single-door layout instead of a double door.

FAQ:
How is TFD320 different from FD320?
TFD320 is the thermal break version of the FD320 style. It keeps the matte black 8-lite French single door look but adds a thermal break frame for better insulation performance.

Is this a good option for a narrow front entry?
Yes. The single-door layout is a good fit for narrower exterior openings where a double door would not be practical or necessary.

What does 8 lite mean?
8 lite refers to the divided-glass grid layout on the door. It gives the door a classic French door appearance while still allowing natural light into the entry.

Can this design be made as a double door?
Yes. Since the door is custom made, the same 8-lite design can be made as a double door if the customer needs a wider entry opening.

Thermal Break 

If you’re located in states such as New York (NY), Michigan (MI), Illinois, or anywhere with harsh winter or summer conditions, adding a thermal break is a must. Please select the thermal break doors from our Thermal Break Doors collection. And if you want to know more about the thermal break doors, pls review "why choose a thermal break doors"

 

Door Type

 Double Door, Single Door, with Sidelights or Transom, Custom Designs are Acceptable. 

 

Door Size

All our iron doors are pre-hung, so the listed size refers to the complete unit, including the jambs and threshold. Please ensure that your rough opening is 1" wider and 1/2" taller than the door unit size to allow for proper installation.

Popular Single Door Size: 36"x81", 36"x96", 40"x80", 40"x84", 40"x96", 42"x84", 42"x96", 48"x81", 48"x96"

Popular Double Door Size: 60"x80", 60"x84", 60"x96", 64"x80", 64"x96",  72"x80", 72"x84", 72"x96"

Custom sizes are acceptable as well. 

Material

Standard door jamb and slab are made with heavy-duty 12-gauge steel.

Color Finish

7 coats of paint on top of zinc galvanized steel to prevent iron doors from dust & rust. Glory Iron Doors offers a wide range of color options for you to choose from.

Popular Door Color: Matte Black, Oil Rubbed Bronze, Rust Red Brown, Rose Copper, etc. 

Custom RAL colors are acceptable. 

Glass Type

All standard exterior iron doors come with dual-pane tempered glass 5/8” for great safety. For customers in Florida who require hurricane protection, you can choose our triple-pane impact-resistant glass.

 

Glass Finish

Clear, Frosted, Aquatex, Rainstorm, Water Cubic, etc. 

 

Glass Window on Door

Glass is fixed for the iron French doors. 

 

Bugproofing Screens

The screens are diamond-mesh panels attached between the glass window and the iron frame with magnets.  So it's not required for iron French doors since the glass window is fixed. 

 

Door Sealing

High Quality Weather Stripping and Door Sweeps

 

Door Top

Round Top, Square Top, or Arch Top, as per your needs.

 

Kindly note the lead time is 14-16 weeks from the drawing approval date.

All our doors are packaged in wooden crates with steel framing and industrial-strength, extra-thick stretch wrap to protect them from damage during transit. You can rest assured that your door will arrive in brand-new, undamaged condition.

Glory Iron Doors offers free curbside delivery to the continental United States. For the other states, pls contact us for an estimate. 

Discover the Complete Package: Door Unit Sets and More!

 

Handle & Lock :  Standard 2 1/8” boring, 5 1/2” center to center, and 2 3/4” backset

 

Hinge:  Heavy-duty hinges that can support up to 1500 pounds. Grease easily for better use.

 

Flush Bolts: Pre-installed on double doors to lock the inactive door and leave a main entrance or unlock it for a complete opening.

 

Mounting Flanges: Come welded on the jamb with pre-drilled holes for easy installation.

 

Weather Stripping: Sealed around the door frames and glass panels to reduce air infiltration and heat loss.

 

Door Sweep: Installed on the bottom of the door slab, sealing the space to prevent moisture, dust, and insects. You'll even save a bit of money on heating and cooling.

 

Threshold: Comes welded on the jamb to prevent water infiltration. Standard 6” wide as the jamb.

 

Touchup Paints: There will be small bottles of paint in the package in case you need a touch-up in the future.

 

Quality You Can See, Craftsmanship You Can Trust

Iron Door Color Finish Options

Glass Finish Options

Handle Options (Modern OF-Series)

Handle Options (Modern S- Series)