Exterior Door Buying Guide (2024)

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  • Pre-Hung Versus Slab Doors
  • Pre-Hung Doors
  • Slab Doors
  • Wood, Steel and Fiberglass Exterior Doors
  • Wood Doors
  • Fiberglass Doors
  • Steel Doors
  • Iron Doors
  • Exterior Door Measurements
  • Standard Door Measurements and Special-Order Door Sizes
  • Glass
  • Finishes
  • Door Knobs, Handle Sets and Door Locks
  • Storm Doors
  • Screen Doors
  • Security Doors
  • Patio Doors
  • Dutch Doors

Pre-Hung Versus Slab Doors

Exterior Door Buying Guide (1)

There are two common types of exterior doors. Pre-hung doors include both the door and the frame that supports the door. Slab doors include just the door alone. Pre-hung doors are often easier to install than slab doors. Accurate measurement is key to the right fit.

Tip: If your slab door is more than 25 years old, use a pre-hung door to ensure a sealed frame.

Pre-Hung Doors

Exterior Door Buying Guide (2)

Pre-hung doors are known for their smooth, easy installation and precise fit. The existing door and framing must be removed before a pre-hung unit can be installed. A pre-hung door comes already attached to hinges and door framing. Its frame includes thresholds and weather-stripping.

A full unit includes a prepped door that's hinged and assembled to your specifications. Hardware (door knobs, handles and door locks) is sold separately.

Slab Doors

Exterior Door Buying Guide (3)

A slab door is only the door. There is no framing attached. A slab door simply replaces the old door on its hinges. This can be a simpler process but older homes may require a custom size.Hardware (door knobs, handles and door locks) is sold separately.

Wood, Steel and Fiberglass Exterior Doors

Exterior Door Buying Guide (4)

The most popular materials for an exterior door are wood, steel and fiberglass. Most homeowners don't mind the upfront investment for wood because of its traditional look and natural appeal. A metal or steel exterior door is the most budget-friendly of the three. Fiberglass comes in a variety of styles and is very durable. Choose the material for your exterior door based on energy efficiency, security concerns and the style of your home.

Tip: To maximize security, add door chains or install an all-metal security door over your entry door.

Wood Doors

Exterior Door Buying Guide (5)

Wood doors are a beautiful option for traditional homes, especially those with entryways sheltered from the elements. Wood doors are available in a range of woods, including premium hardwood and pine. Most wood doors are made using frame and panel construction. A wood door is heavy and dent-resistant and can be designed with or without glass insets. They do require regular maintenance, including repainting to preserve the look.

Tip: Using a wood door with a storm door can void its warranty.

Fiberglass Doors

Exterior Door Buying Guide (6)

Fiberglass doors are a versatile option best suited for high-traffic entrances.

  • Wood grain texture molded into the door.
  • Durable and weather-resistant.
  • Energy efficient foam insulation and weather-stripping help block heat and cold.
  • Available in different wood grains as well as with a smooth surface.
  • Much more dent resistant than steel.
  • Can be stained or painted to match your home’s exterior.

Steel Doors

Exterior Door Buying Guide (7)

Steel doors are ideal for residences with heightened security concerns or severe weather.

  • Energy-efficient foam core insulation.
  • A coating that mimics the look of real wood.
  • Stronger than wood or fiberglass doors.
  • Fully weather-stripped, reducing chances of shrinking, swelling and warping.
  • Most budget-friendly.
  • Secure, durable, affordable, low-maintenance and weather-resistant.
  • Can be dented easily, so not a good choice for doors you use often.

Iron Doors

Exterior Door Buying Guide (8)

Iron doors are a striking combination of beauty and durability. Many are designed to let in more light than average doors while still providing high security.

  • Built to last, secure and durable.
  • Can be ornate or minimal in design.
  • Will not rot, warp or splinter.
  • More durable and secure than wood doors.

Exterior Door Measurements

Exterior Door Buying Guide (9)

When measuring your door, first familiarize yourself with some basic door terminology. Most entry doors are the same industry-wide standard size. Sizes different from these can be special ordered.

  • Rough opening: The required dimensions to fit a pre-hung door (including frame and slab).
  • Jamb size: Should be the depth of the frame, not the width, covering the sheeting or siding and wall stud.
  • Net frame dimension: The full width of the frame.
  • Masonry opening: The space between the bricks on the front of your home as they surround the door (if applicable).

Standard Door Measurements and Special-Order Door Sizes

Exterior Door Buying Guide (10)

Standard entry door measurements:

  • Height: 80 inches (6 feet 8 inches)
  • Thickness: 1 3/4 inches
  • Width: 36 inches standard (30 and 32inches also available)

Door measurements available by special order:

  • 7 and 8-foot tall doors
  • Double entry doors
  • Custom-made doors (made to your specifications; extra charge applies).

Glass

Exterior Door Buying Guide (11)

Options include tempered, impact-resistant glass, glass that limits UV rays and glass that helps muffle sound. Some glass has a low-emissivity (low-e) coating to help filter harmful UV rays. These rays can fade your upholstery or flooring

  • Decorative glass panels can be placed within a door to enhance its beauty, let in natural light and allow for a view.
  • Sidelights (windows on both sides of the door) or transoms (windows set over the door) create a custom look.

Finishes

Exterior Door Buying Guide (12)

Doors are available unfinished, primed, painted, stained or varnished. Seal and finish all six sides of your door (top, bottom, front, back and sides) immediately after installation. Waiting to seal your door may void your product warranty.

Door Knobs, Handle Sets and Door Locks

Exterior Door Buying Guide (13)

All exterior doors should have a deadbolt lock to increase security. A good deadbolt lock extends at least one inch beyond the edge of the door.For a coordinated look, choose the same finish for your doorknobs, hinges, threshold, handle set, mailbox and house numbers.

Storm, Screen, Security, Patio & Dutch Doors

Exterior Door Buying Guide (14)

Storm doors, patio doors, security doors and screen doors are all designed to work with your entrance. There are many types and styles to choose from. For example, folding patio stack on the left, right or on both sides and operate like an accordion. Each of these types of exterior doors comes in a variety of finishes to match your home.

Storm Doors

Exterior Door Buying Guide (15)

Storm doors fit over your exterior entry doors and provide a glass panel of protection to help prolong the life of your door's outer surface. They also help insulate your home and provide an extra measure of security. Storm doors are available as full-view models with a large pane of glass or with screens to provide ventilation in warm weather.

Screen Doors

Exterior Door Buying Guide (16)

Screen doors offer screens for ventilation and weather-stripping to keep out wind, rain and dust.

They are available as gliding or hinged doors. On some models, auxiliary locks allow you to keep your patio door in a partially open position.

Security Doors

Exterior Door Buying Guide (17)

Security doors resist forced entry with welded steel construction and tamper-resistant features. They can have one-way, non-removable screws and welded steel butt hinges. Security doors also have corrosion-resistant, galvanized metal screens. They are available in varying degrees of strength and resistance to forced entry.

Patio Doors

Exterior Door Buying Guide (18)

Patio doors are typically two side-by-side doors that open out onto your patio or porch. They are available as French doors or center-hinged doors that swing open to one side from center hinges or sliding or gliding doors.

Dutch Doors

Exterior Door Buying Guide (19)

Dutch doors add unique character to the exterior of a home. They are horizontally divided doors that allow the top half to open while the bottom half remains closed. The split style allows in more light and fresh air than a standard door. They can be safer and more convenient when you are interacting with delivery personnel since pets and small children won't be able to get past the closed bottom door.

The best exterior door depends on the look and security you want for your home. Whether you're moving into a new home or replacing old doors, you'll find door sizes and styles to suit most any home. You can also order custom entry exterior doors in the size you need. Once you've chosen the best types of exterior doors for your home, you can install them yourself. Or you can use of our professional measurement and door installation services. For free design, purchase and installation help with windows and doors, call us anytime between 9 a.m. - 9 p.m. EST at 1-833-HDAPRON (432-7766).

Exterior Door Buying Guide (2024)

FAQs

How do I know what size exterior door to buy? ›

Start by measuring the width and height of the existing door slab. Round each number up to the nearest inch to determine the nominal door size you'll need. For single doors and doors with sidelites, measure only the door slab. For Double Doors, measure the width of the two door slabs together.

What is the best exterior door to buy? ›

For security and durability, steel doors are the best option for their strength. If budget is a concern and you want a durable door that's more wallet-friendly, a fiberglass door would be the best option. Wooden doors make for a beautiful front entry, but they are more expensive.

What is a good R value for an exterior door? ›

The R-values of most steel and fiberglass-clad entry doors range from R-5 to R-6, excluding a window. For example, a 1-1/2 inch (3.81 cm) thick door without a window offers more than five times the insulating value of a solid wood door of the same size.

Can you just buy an exterior door without the frame? ›

If a door's frame is in good shape, and you don't want to change the size of the opening, you can simply swap in a new replacement door, also called a “slab” or “blank.” If your door's surround is worn, you can buy a door that's pre-hung in a new frame, an all-in-one assembly that arrives ready to install.

How do you measure an existing exterior door for replacement? ›

Measure from one side to the other of the door panel, or the part that swings. To find the door height, measure from the top of the door panel to the bottom on the edge of the door. Measure the door thickness and door jamb width. For the door thickness, simply measure the edge of the door.

What is the trend in front doors for 2024? ›

Sidelites: Illuminating Entrances with Style. From the sidelines to the spotlight, sidelites are making a comeback in 2024. These slim glass or solid panels on either side of a front door are not just functional additions but aesthetic powerhouses.

What is the longest lasting exterior door? ›

Steel Entry Doors

You really can't beat steel when it comes choosing a long-lasting door. Not only do they resist fire damage, they're extremely secure and they can last for 100 years or more. Look for doors with an insulated core to keep your energy costs low. You can also choose an affordable door.

What are the disadvantages of fiberglass doors? ›

The Cons of a Fiberglass Front Door
  • Fiberglass Doors May Be More Expensive. ...
  • Less Security Compared to Some Options. ...
  • Homeowners Association Bylaws. ...
  • Slightly Less Resale Value Possible.
Oct 14, 2020

Can I put a new exterior door in an existing frame? ›

If your old frame is still in good condition and shape, then there should be no issue with keeping it when you replace your door. However, there are some signs to look out for that will tell you if your frame needs replacing. First, check if the door still opens or closes properly.

What is the best type of external door? ›

Metal & aluminium

Metal and aluminium doors are great for anyone looking for extra security along with a clean and modern look. These are easy to maintain and there's no need for paints, varnishes or stains.

What does "prehung door" mean? ›

A pre-hung door is a door set consisting of everything that you need to install it into your opening. A slab door is simply just the door. A slab door is included in pre-hung doors. The difference being that the slab door in a pre-hung set will come with the frame and hinges already attached.

Do I need a storm door with a fiberglass door? ›

Do I Have to Use a Storm Door with a Fiberglass Entry Door? In a word, no. Fiberglass entry doors are built to stand up to harsh weather and other damaging effects. They're also excellent for security purposes and offer a high level of insulation, keeping your home more comfortable and helping to lower utility bills.

What is the best insulated exterior door? ›

Material: Fiberglass doors are generally considered to be the best material for protecting your home. They offer better insulation and durability. Weatherstripping: Proper weatherstripping can help protect your home from drafts and other winter elements.

What doors have the best insulation? ›

Most steel and fiberglass doors usually have R-values between R-5 and R-6, so they typically provide more insulating value than wood doors. This means a fiberglass or steel door that's 1-1/2 inches thick will have five times more insulating value than a solid wood door of the same thickness.

How do you determine door size? ›

Take measurements near the top, middle and bottom of the frame. Write down the largest of these measurements as the width of the door unit. Measure the depth of the frame from the inside edge to the outside edge, excluding brickmould and trim pieces.

Do front door measurements include the frame? ›

To measure a door accurately, you need to measure the frame, rough opening, jamb thickness, and panel.

What size door do I order? ›

Measurements For Rough Opening
Existing Door WidthExisting Door HeightDoor Size to Order
23.5″ - 24″79″ - 81″24″
25.5″ - 26″79″ - 81″26″
27.5″ - 28″79″ - 81″28″
29.5″ - 30″79″ - 81″30″
3 more rows

What is the actual size of a 36 exterior door? ›

The standard size for an exterior door is 80 inches by 36 inches which is 6 ft, 8 inches by 3 ft. 96 inches or 8 ft. is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32-inch widths.

References

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