Premium Insulated Steel (AP200)

Premium Insulated Steel (AP200)


Quality and Elegance
Beautiful and strong, 2″ thick, and thermally efficient. Combine this with all the decorative options available and you have a best-in-class garage door that just can’t be beat. View Premium Insulated Steel Brochure→​​

More Information

​​​​​​​​​​​​​​For premium construction and maximum thermal efficiency, a Dover and Company’s insulated steel door is the ideal choice. This series of doors feature our sandwich construction of steel-polyurethane-steel as well as between-section seals with thermal breaks to reduce air infiltration. With several panel designs to choose from, these doors offer design flexibility, durability and thermal efficiency that will help keep your home comfortable in cold or hot climates.

Garage Door Designs

Door Design Options

  • Standard
  • Long
  • flush garage door design with 4 horizontal panels
  • garage door design 4x4
  • garage door design 4x2

​Thermacore® garage door model numbers are determined by the R-value of the door.

Standard Long Flush V5 V10
  9.31 R-value 297 295 298 296
12.76 R-value 194* 198* 195 199* 192*
17.50 R-value 494* 496* 495 497*   ​​​​​​​

*Wood Grain Finish available on these models.

Colors & Features


The Thermacore® garage doors are available in nine standard colors or can be painted to match your home’s décor. Color selections may not be available for some models.

  • white color swatchWhite
  • almond color swatchAlmond
  • desert tan color swatchDesert Tan
  • sandstone color swatchSandstone
  • brown color swatchBrown**
  • bronze color swatchTerra Bronze*
  • hunter green color swatchHunter Green*
  • gray color swatchGray*
  • black color swatchBlack**

* These colors only available in the 190 series
** These colors available in the 190 and 490 series only

Optional Wood Grain Finishes

Wood grain option available on models 192194,198199, 494, 496, & 497

  • golden-oakGolden
  • walnutWalnut 
  • mission oakMission Oak​

Actual door color may vary slightly from the digital representation above. Color samples are available by request through your local Overhead Door™ Distributor.

*Overhead Door Corporation does not warrant this product with black finish against warping, rubbing, or other issues associated with thermal bowing. Black finish is not recommended for areas that experience high heat and/or high UV conditions.


5 Panel options available:
standard, flush, long, V5 and V10

Thermacore® construction
Provides a continuous layer of foamed-in-place, CFC-free polyurethane garage door insulation sandwiched between two layers of corrosion-resistant steel, for maximum thermal efficiency

Polyurethane garage door insulation
Provides thermal efficiency
9.31 R-value: models 297, 295, 298, 296
12.76 R-value: models 194, 198, 195, 199, 192
17.5 R-value: models 494, 496, 495, 497

Embossed wood-grain texture
Adds beauty, sophistication and durability

Steel backing​
For clean, finished interior appearance

Durable finish
Hot-dipped galvanized steel with two coats of baked-on polyester paint

In-between section seals
Seals provide superior resistance to the elements

Bulb-type bottom weatherseal​​​​​​​​​​​​​​​​​​​​​​​​​​​​​
Guards against wind and rain while providing a cushion when closing the door

Limited lifetime warranty on door

Residential garage door and opener system limited warranty​​​​​​​​​​​​​​​​​​​​​​​​​​​​​
(when purchased together) – features 3 year on components (see warranty for details)​​

Windows & Hardware

Garage Door Windows

Window Styles

Windows available on Standard, Flush and V5:

  • garage door windowsClear Short
  • garage door windowsAshton 1
  • garage door windowsCascade 1
  • garage door windowsCathedral 1
  • garage door windowsMadison 1
  • garage door windowsPrairie 1
  • garage door windowsRuston1
  • garage door windowsSherwood 1
  • garage door windowsStockford 1
  • garage door windowsStockton 1
  • garage door windowsWaterton 1
  • garage door windowsWilliamsburg 1 (4pc)
  • garage door windowsWinston 1
  • garage door windowsWilliamsburg 1 (8pc)

Windows available on Long, Flush, V10 and V5:

  • garage door windowsClear Long
  • garage door windowsAshton 2
  • garage door windowsCathedral 2
  • garage door windowsCascade 2
  • garage door windowsPrairie 2
  • garage door windowsRuston 2
  • garage door windowsSherwood 2
  • garage door windowsSomerton 2
  • garage door windowsStockbridge 2 (3 lite)
  • garage door windowsStockbridge 2 (4 lite)
  • garage door windowsStockford 2
  • garage door windowsStockton 2 (4 lite)
  • garage door windowsStockton 2 (6 lite)
  • garage door windowsStockton 2 (8 lite)
  • garage door windowsStockton 2 (8 lite)Arch
  • garage door windowsStockton 2 (12 lite)
  • garage door windowsWaterton 2
  • garage door windowsWilliamsburg 2
  • garage door windowsWyndbridge
  • garage door windowsWilliamsburg 2 (4pc)

Windows available on models 194 and 195 only:

  • garage door windowsStockbridge
  • garage door windowsStockton
  • garage door windowsStockton Arch
  • garage door windowsSomerton
  • garage door windowsWyndbridge Arch

Optional Window Placement

Windows may be arranged vertically or horizontally on the models found in the 190 and 490 series. Windows placed in the bottom section of ta door must have DSB 1/8″, or tempered, or 1/2″ insulated glass.

vertical window columnVertical window column

double row of windowsDouble row of windows ​​​​
double row of windowsAll window option (Flush panel only – must ​be clear short or clear long windows) ​​​​

Glass Options

All decorative trim windows come standard with double strength glass.

  • ​​clear glass option
  • obscure glass option
  • bronze glass option


Garage Door Hardware

garage door hardware​​​​​​​​​​​​​​​​​​


Why Choose Dover & Company?

4.8 Star-Rating

Across all online review sites

A+ BBB Rating

Our rating from Better Business Bureau

Since 1936

we've been specializing in garage doors

Window Style Options

Panel Style



What's a Field Check?

Dover offers free field check, that ensure a perfect and seamless installation. After placing your order a representative will contact you and double check your measurements to make sure everything is correct.

How to Measure Your Garage Door

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