What Are Standard Exterior Door Sizes
Exterior Door

What Are Standard Exterior Door Sizes


What Are Standard Exterior Door Sizes: When it comes to your home’s exterior, the doors you choose play a vital role in aesthetics, functionality, and security. Understanding standard door sizes is crucial whether you’re renovating, building a new house, or simply upgrading your entryways.

Exterior doors serve as the first line of defense against the elements and intruders, making their size a significant factor in maintaining energy efficiency and safeguarding your loved ones. The world of exterior doors can be overwhelming, with a variety of styles, materials, and dimensions available. That’s where knowing the standard sizes comes in handy. In this guide, we’ll delve into the fundamental aspects of standard exterior door sizes. Let’s open the door to enhanced understanding and confident decision-making for all your exterior door endeavors.

What Are Standard Exterior Door Sizes

What are the most common exterior door sizes?

One of the most common front door sizes in American houses is 36 inches wide by 80 inches tall, and almost 2 inches thick. However, not all doors will have these measurements. Doors can be as narrow as 30 inches and as tall as 96 inches, and thickness can depend on the door material.

Exterior door sizes can vary, but there are some common dimensions that you’ll find in many homes. The most common exterior door sizes in the United States are:

  • 36 inches (3 feet) wide by 80 inches (6 feet, 8 inches) tall: This is the standard size for a single exterior door. It’s by far the most prevalent size in residential construction.
  • 32 inches (2 feet, 8 inches) wide by 80 inches (6 feet, 8 inches) tall: Slightly narrower than the standard size, this is often used in older homes or for back doors. It’s still a common size and meets accessibility standards.
  • 34 inches (2 feet, 10 inches) wide by 80 inches (6 feet, 8 inches) tall: This size falls between the standard and narrower options and is sometimes chosen for its aesthetic appeal or when a slight adjustment to the opening is needed.
  • 42 inches (3 feet, 6 inches) wide by 80 inches (6 feet, 8 inches) tall: Wider than the standard, this size is often used for double doors or grand entryways, providing a more spacious and elegant look.

What is the size of a standard external door?

Common external metric door sizes

While 1981mm x 838 x 44mm is the most common external door size, and therefore largely considered standard, don’t worry if your front door does not conform to this size. There is a variety of common external door sizes readily available from retailers and manufacturers.

In the United States, a standard external door typically measures 36 inches (3 feet) in width and 80 inches (6 feet, 8 inches) in height. Install weatherstripping or a door sweep at the bottom to seal the door when closed.

In metric measurements, this standard external door size is approximately 91.44 centimeters in width and 203.2 centimeters in height. However, it’s important to note that variations exist to accommodate specific needs and design preferences.

What is the length and width of an exterior door?

Typically, main entry doors measure 36 inches wide by around 80 inches high. Depth can vary depending on material. However, you can have doors that are much taller. These might be visually appealing in home designs with a tall or large entryway or a cathedral ceiling.

The length and width of an exterior door can vary depending on the specific door and the architectural design of the building. However, there are standard dimensions for exterior doors in many countries, including the United States. The most common size for an exterior door in the United States is 36 inches (3 feet) in width and 80 inches (6 feet, 8 inches) in height. These dimensions are often referred to as a “3’0″ x 6’8″ door” and are considered standard because they provide a comfortable and accessible entry point for most people.

In Metric Measurements

A standard exterior door in the United States is approximately 91.44 centimeters in width and 203.2 centimeters in height. This size is widely used in residential construction and is suitable for accommodating common door hardware, such as locks, handles, and deadbolts. It also meets accessibility standards, ensuring that the door is user-friendly for a broad range of individuals.

Customization is another option for exterior doors, allowing homeowners to choose door sizes that match their unique design requirements or fit non-standard openings. However, when selecting a door size, it’s essential to consider factors like accessibility, aesthetics, and functionality to ensure that the door meets both practical and design needs.

What is the basic size of a door?

80 inches by 36 inches

The standard door measurements of an interior door are 80 inches by 36 inches. And the typical door width should be at least 24 inches, while the height should be 80 inches.

The basic size of a door typically refers to the standard dimensions for interior and exterior doors. In many parts of the world, including the United States, the basic size for a door is approximately 80 inches (6 feet, 8 inches) in height and 36 inches (3 feet) in width. These dimensions provide a comfortable and accessible passage for most people and allow for the installation of common door hardware like locks, handles, and hinges.

In metric measurements, this standard door size is approximately 203.2 centimeters in height and 91.44 centimeters in width. However, it’s important to note that these are typical dimensions, and variations exist to accommodate different architectural styles, preferences, and specific needs. Interior doors, for instance, may have different widths, such as 28 inches or 32 inches, depending on their location within a home.

Which type of door is best for home?

Because of their simplicity, flush doors are the best solution for home or commercial space entrances. These flush doors are made of treated, premium and well-seasoned wood.

The choice of the best type of door for a home depends on various factors, including your specific needs, style preferences, and budget. Here are some common types of doors for homes and their suitability:

  • Wooden Doors: Wooden doors are classic and offer a warm, traditional look. They are versatile and can be customized to fit various architectural styles. However, they may require more maintenance in terms of sealing or painting to protect against weathering.
  • Steel Doors: Steel doors are highly durable, energy-efficient, and provide excellent security. They are a popular choice for exterior doors, especially in urban areas. They can be painted and designed to mimic the appearance of wood.
  • Fiberglass Doors: Fiberglass doors are known for their low maintenance requirements and energy efficiency. They can mimic the look of wood or other materials. They are a good choice for high-traffic areas and can withstand harsh weather conditions.
  • Glass Doors: Glass doors, including sliding or French doors, can introduce natural light and a sense of openness to a space.
  • Interior Doors: For interior doors, factors like style, soundproofing, and privacy may be more critical. Options include solid wood doors, hollow-core doors, and molded doors, each suitable for different applications.

Ultimately, the best door for your home depends on your specific needs. It’s advisable to consider factors like security, energy efficiency, maintenance requirements, and the overall aesthetic appeal when making your choice.

How thick are exterior doors?

1-3/4″ thick

The door frames include weather strip and a sill to make them energy efficient. Exterior doors typically come in standard thicknesses to provide security, insulation, and durability. The most common thickness for an exterior door in the United States is 1¾ inches (1.75 inches), which is about 4.45 centimeters. This thickness provides the necessary strength and insulation to withstand weather conditions and enhance energy efficiency.

However, variations exist. Some exterior doors may be slightly thicker, especially those designed for enhanced security. High-security doors, such as those used in commercial buildings or for specific residential purposes, can be even thicker, reaching 2 inches or more.

What size is a door in width and height?

Standard Door Size In India

The common door sizes adapted in India is 31″ x 80″ for interior doors and 39″ x 80″ for exterior doors. While some other doors are also adapted based on design requirements like 26″ x 80″, 35″ x 80″ or 650 x 2045 mm, 900 x 2045 mm.

As mentioned earlier, the size of a door in width and height can vary depending on the type of door and its intended use. A common size for both interior and exterior doors in the United States is approximately 80 inches (6 feet, 8 inches) in height and 36 inches (3 feet) in width. In metric measurements, this translates to approximately 203.2 centimeters in height and 91.44 centimeters in width.

What is a good size front door?

A good size for a front door depends on several factors, including the architectural style of your home, personal preferences, and the practicalities of the entrance.

However, here are some general guidelines to consider when determining the size of a front door:

  1. Standard Size: American front doors are 36 inches (3 feet) wide and 80 inches (6 feet, 8 inches) tall. This size is appropriate for many homes because it’s wide enough for easy entry and exit while looking proportional.
  2. Proportion to the House: Consider the balance and visual harmony between the door and the surrounding architecture.
  3. Architectural Style: Different architectural styles may call for specific door sizes.
  4. Accessibility: Ensure that your front door size complies with accessibility standards if needed. This is especially important if you or anyone in your household has mobility challenges. Wider doors, such as 36 inches, provide easier access for wheelchairs and strollers.
  5. Personal Preference: Ultimately, your front door should reflect your personal style and taste.
  6. Functionality: Consider the functionality of your front door. Does it need to accommodate larger furniture items or provide ample clearance for a busy entrance and exit? If so, a wider door might be more practical.
What Are Standard Exterior Door Sizes


Understanding standard exterior door sizes is an essential aspect of creating a harmonious and functional home environment. The doors you choose impact not only the visual appeal of your property but also its security, energy efficiency, and overall value. By familiarizing yourself with the typical dimensions of various exterior door types, you can make well-informed decisions that align with your aesthetic preferences and practical requirements.

Whether you’re embarking on a renovation journey, building a new house, or advising clients in the construction and design industry, the insights gained here empower you to confidently select the right exterior door sizes. Remember that while standards provide a useful baseline, customization is also possible to meet unique needs and design visions.

Many call this size aThis knowledge will help you find the perfect outside doors that are functional, secure, and energy-efficient. With this knowledge, you may tackle external door projects with confidence and a clearer picture of success. “3’0″ x 6’8% door.” Most people can easily enter and depart it, and it fits locks and handles, making it standard.