You often encounter standard door sizes when planning any renovation or installation. Standard door size interior doors measure 80 inches high and range from 28 to 32 inches wide. While exterior doors typically stand 80 inches tall and 36 inches wide. The table below shows common dimensions:

Тип двери	Height (inches)	Width (inches)	Thickness (inches)
Interior	80	28–32	1-3/8
Exterior	80	36	1-3/4

Choosing a standard door size interior helps you find affordable, readily available options and ensures your project meets building codes.

Overview: Why Door Sizes Are Standardized

You see standard door size interior measurements in almost every home. Builders and manufacturers use these standard sizes to make construction easier and more cost-effective. When you choose a standard door size interior, you simplify installation and replacement. You also make sure your doors fit with most hardware and frames available at stores.

The most common standard door size interior is 80 inches in height and 30 to 32 inches in width. These measurements work well for most rooms and provide enough space for people and furniture to move through. You can check the table below to see how often these sizes appear in new homes:

Dimension Type	Common Sizes
Height	80″ (8′)
Width	30″, 32″, 34″, 36″

You find that standard interior doors for bedrooms usually measure between 30 and 32 inches wide. Closet and bathroom doors are often narrower, with widths of 24, 28, or 30 inches. These variations help you match the door to the function of the room. For example, you might want a wider door for a bedroom to move furniture easily, while a closet door can be smaller to save space.

Tip: Always check the standard door size interior for each room before you buy or install a new door. This step helps you avoid costly mistakes and ensures a smooth renovation process.

Here is a quick reference for common door widths by room type:

Room Type	Common Door Width
Спальня	30″-32″
Bathroom	28″-30″
Closet	24″-30″

You notice that standard sizes make it easier to find replacement doors and hardware. Stores stock standard interior doors in these measurements, so you spend less time searching. You also save money because manufacturers produce standard door size interior options in large quantities.

Standard sizes also help you meet building codes and safety requirements. You need to follow these rules to make sure your home is safe and accessible. For example, using a standard door size interior for bedrooms and bathrooms ensures that people can enter and exit easily.

You benefit from standardized measurements because they create consistency throughout your home. When you use standard interior doors, you achieve a uniform look and make future upgrades simpler. You can also plan your renovations with confidence, knowing that standard sizes will fit most spaces.

Common Standard Door Dimensions Explained

Typical Door Width

When you choose a door for your home, you need to know the standard door width. Most interior doors have a standard door width between 30 and 36 inches. This range gives you enough space for moving furniture and walking through comfortably. For bedrooms and living rooms, you often see a standard door width of 32 inches. Bathroom and closet doors may use a standard door width of 28 or 30 inches to save space.

Exterior doors usually have a standard door width of 36 inches. This size works well for front and back entrances, giving you plenty of room for large items and easy access. Some homes use a standard door width of 30 or 32 inches for side or secondary entrances. Grand entrances or custom homes may use a standard door width of 42 inches.

You can see the typical range for residential doors in the table below:

Тип двери	Typical Width Range
Interior Doors	30 to 36 inches
Exterior Doors	Around 36 inches
Accessibility Doors	Must meet specific width requirements

Double doors, often used for patios or main entrances, combine two panels. You find common double door sizes like 80×60, 80×64, and 80×72 inches. These options give you a total standard door width of 60 to 72 inches, making them perfect for lobbies, hotels, or large living spaces.

Tip: Always measure the opening before you buy a new door. Standard door width helps you find the right fit, but older homes may have unique sizes.

Typical Door Height

The standard door height for most homes is 80 inches, which equals 6 feet 8 inches. This measurement works for both interior and exterior doors. You also see premium heights like 84 inches (7 feet) and 96 inches (8 feet) in modern or custom homes. Some older homes may use a standard door height of 84 inches.

Here is a quick reference for standard door height:

Тип двери	Standard Heights (inches)	Common Usage
Interior Doors	80, 84, 90, 96, 108	80″ and 96″ are most common; 84″ in older homes; 108″ in modern homes
Exterior Doors	80, 84, 96	Custom sizes are common for designer doors

You may want a taller door for a dramatic look or to match high ceilings. Custom doors can be made in almost any height, but using a standard door height makes installation easier and less expensive.

Standard door thickness

You also need to consider the thickness when choosing a door. The standard thickness for interior doors is 1-3/8 inches. For exterior doors, the standard thickness is 1-3/4 inches. These measurements help your doors fit most frames and hardware.

Here is a table showing the standard thickness for both types:

Тип двери	Standard Thickness
Exterior Doors	1.75 inches
Interior Doors	1.38 inches

In Europe, exterior doors often have a thickness between 40 and 45 mm, which matches the American standard of about 1-3/4 inches (45 mm). Using the standard thickness ensures your door is strong, secure, and energy efficient.

Rough Opening Size vs. Door Size: Key Differences

When you install a door, you need to know the difference between the rough opening and the actual door size. The rough opening is the space in the wall where you place the door frame. This opening is always larger than the door itself. The extra space lets you adjust the frame, add insulation, and make sure the door fits perfectly.

• The rough opening is larger than the door size to allow for adjustments during installation.
• This space helps you fit, level, insulate, and seal the door.
• If the opening is too large, you may get gaps or shifting frames, which can hurt insulation and security.
• If the opening is too small, you might need to change the frame or buy a new door.

You should always measure the rough opening before you buy a door. Standard door sizes make this process easier, but you must check your measurements to avoid problems during installation. The right rough opening ensures your door works smoothly and keeps your home safe and comfortable.

Note: Using standard door sizes for both the door and the rough opening helps you avoid costly mistakes and makes future replacements simple.

You now have a clear understanding of standard door width, standard door height, and standard thickness for both interior and exterior door sizes. Knowing these dimensions helps you plan your project, choose the right products, and ensure a smooth installation.

Why Standard Door Sizes Matter

Installation and Replacement

You benefit from standard doorway dimensions during installation and replacement. Contractors and homeowners find that using standard door width and height leads to faster build times. You reduce labor costs because doors fit easily into pre-made frames. Planning becomes simpler when you rely on standard dimensions. Renovations become less stressful since you can replace old doors with new ones that match the standard doorway dimensions.

• Standard doorway dimensions speed up installation.
• You save money on labor.
• Planning and renovations become easier.

Cost and Availability

Standard door width and height affect the cost and availability of doors in stores. You find that manufacturers produce doors in standard dimensions, making them more affordable and easier to find. The table below shows common sizes for different placements:

Door Placement	Height (Inches)	Width (Inches)
Bifold closet doors	80	24–36
Interior door	80	32
Exterior door	80	36

You usually pay between $360 and $1,300 to install an interior door. Choosing standard doorway dimensions helps you avoid extra costs for custom work.

Accessibility and Safety

Standard door width plays a key role in accessibility and safety. You ensure that your home meets ADA requirements by using doors with a minimum clear width of 32 inches. You also provide enough maneuvering space—at least 30 inches by 48 inches—in front of doors for safe access. Swing clearance prevents doors from blocking pathways, which helps people with mobility or visual impairments move safely.

• Standard doorway dimensions support ADA compliance.
• You create safer, more accessible spaces.

Energy Efficiency

Standard doorway dimensions help you improve energy efficiency. You eliminate gaps that cause drafts and moisture to enter your home. By preventing these gaps, you maintain a consistent temperature inside. You notice lower energy bills because your home stays comfortable without extra heating or cooling.

• Standard door width and height prevent drafts.
• You save money on energy costs.

Aesthetics

Standard doorway dimensions influence the look and feel of your home. You may find that standard door width limits design choices, especially in historic homes. Custom sizes offer more flexibility and help you achieve a cohesive style. The size of your doors affects the proportions and balance of each room, making spaces feel more inviting or spacious.

• Standard dimensions create uniformity.
• Custom sizes allow for unique designs.

Standard Door Sizes for Different Areas

Standard Exterior Door Sizes

You need to know the right entry door size for your home. Most entry door options come in standard single doors or standard double doors. The most common entry door height is 80 inches, which fits most homes. Some entry door designs use a taller height of 96 inches for a more dramatic look. You often see entry door widths of 36 inches for front entrances, which allow for easy access and moving large items. Back and side entry door options may use a width of 32 inches. For grand entrances, you might choose an entry door that is 42 inches wide.

Here is a table to help you compare standard exterior entry door dimensions:

Тип двери	Standard Heights (inches)	Standard Widths (inches)
Door Slab	80, 96	32, 36, 42
Pre-Hung Door	81.5, 97.5	33.5, 37.5, 43.5

You can also find standard double doors for entryways, which combine two panels for a total width of 60 to 72 inches. These entry door styles work well for large foyers or patio access.

Tip: Always use accurate door measurements before buying a new entry door. Measure from the floor to the top of the threshold and check the width at several points. Confirm the swing direction and inspect the frame for damage.

Standard Interior Door Sizes

You will find that interior doors come in different sizes based on the room. Bedroom entry door sizes usually range from 30 to 36 inches wide and stand 80 inches tall. For bathrooms, you often see entry door widths of 24 to 28 inches. Closet entry door sizes can range from 24 to 36 inches, depending on whether you have a reach-in or walk-in closet.

Here is a table showing common interior entry door dimensions:

Room Type	Width (inches)	Height (inches)
Bedrooms	30 – 36	80
Bathrooms	24 – 28	80
Closets	24 – 36	80

When you take door measurements for interior doors, always measure the height and width of the existing opening. Check the condition of the frame and consider if you need a pre-hung door. Avoid mistakes by measuring the rough opening and accounting for trim.

Note: Using standard single doors for bedrooms and bathrooms makes replacement easy. For closets or larger rooms, you might choose standard double doors or sliding options.

By following these steps and using the right door measurements, you ensure your new entry door fits perfectly and meets your home’s needs. Accurate dimensions help you avoid costly errors and make installation smooth.

Standard Door Dimensions By Type

French Door Sizes

You often choose French doors to add elegance and light to your home. Standard French door sizes depend on whether you install them inside or outside. For exterior French doors, you usually see widths of 48, 60, 72, or 96 inches and a height of 80 inches. Interior French doors often measure 30, 36, 48, or 60 inches wide. These doors work well as room dividers or entryways to patios and gardens. You can select wood, fiberglass, or steel for your French doors. Many homeowners prefer a wood door for its classic look, while a fiberglass door offers durability and energy efficiency.

Type of French Door	Width (inches)	Height (inches)	Common Use
Interior	24-60	80	Room dividers
Exterior	36-96	80	Entryways to outdoor spaces
Swinging	48-72	80	Both interior and exterior
Sliding	60-96	N/A	Interior pocket doors or exterior doors

French doors made from wood, fiberglass, or steel can match your style and security needs.

Sliding Glass Door Measurements

You see sliding glass doors in many homes for easy access to patios or decks. The standard sliding glass door size for a two-panel configuration ranges from 60 to 96 inches wide and 80 to 96 inches tall. Three-panel doors measure 108 to 144 inches wide, while four-panel doors reach up to 192 inches. You can choose wood, fiberglass, or steel frames for these doors. Fiberglass and steel frames resist weather and require less maintenance than wood.

Panel Configuration	Height (inches)	Width Range (inches)
Two-panel	80 to 96	60 to 96
Three-panel	80 to 96	108 to 144
Four-panel	80	144 to 192

Closet and Utility Door Dimensions

You install closet and utility doors in smaller spaces. Closet doors usually measure 24 to 36 inches wide and 80 inches tall. Utility doors range from 28 to 32 inches wide and stand 80 inches high. You can select wood, fiberglass, or steel for these doors. Wood works well for closets, while fiberglass and steel suit utility rooms.

Тип двери	Width (inches)	Height (inches)
Closet Doors	24 – 36	80
Utility Doors	28 – 32	80
Main Entry Doors	36	80

Pocket Door Dimensions

Pocket doors slide into the wall to save space. You often use them in bathrooms or closets. The studwork size affects the internal passage size. For a 2×4 wall, the passage measures 2-3/8 inches. For a 2×6 wall, it measures 4-3/8 inches. You can choose wood, fiberglass, or steel for pocket doors.

Studwork Size	Internal Passage Size
3-1/2″ (2×4)	2-3/8″
5-1/2″ (2×6)	4-3/8″

Barn Door Measurements

Barn doors add a rustic touch to your home. Standard barn door widths include 36, 42, and 48 inches. Heights range from 80 to 96 inches. Thickness varies from 1⅜ to 2 inches. You can select wood, fiberglass, or steel for barn doors. Ceiling height, wall space, and building codes influence your choice.

Measurement Type	Standard Sizes
Width	36 inches, 42 inches, 48 inches
Height	80 inches, 84 inches, 96 inches
Thickness	1⅜ inches, 1¾ inches, up to 2 inches
Factors Influencing Size	Ceiling height, wall space, building codes, aesthetic factors, functional requirements

Bi-Fold Door Measurements

Bi-fold doors fold to save space. You often install them in closets or laundry rooms. Heights range from 60 to 145 inches. Odd doors measure 16 to 420 inches wide, while even doors measure 28 to 780 inches wide. You can choose wood, fiberglass, or steel for bi-fold doors. Fiberglass door options work well for laundry areas, while wood doors suit bedrooms.

Measurement Type	Minimum	Maximum
Height	60–70 inches	120–145 inches
Width (odd doors)	16 inches	420 inches
Width (even doors)	28 inches	780 inches

You can install bi-fold doors as interior or exterior doors. Wood, fiberglass, and steel options give you flexibility for every space.

Door Measurement Guide: Step-by-Step

Measuring your door correctly ensures a smooth installation and a perfect fit. You need to follow a few simple steps to get accurate door measurements. This guide walks you through each stage, from the door panel to the rough opening.

Step 1: Measure the Door Panel

Start by measuring the door panel itself. This step helps you find the right replacement or check if your new door will fit.

1. Measure the width at the top, middle, and bottom of the door panel. Use the smallest number for the most accurate result.
2. Measure the height from the top edge to the bottom edge. Take this measurement at both sides and in the center, then use the smallest value.
3. Check the thickness by measuring along the edge of the door. Avoid hinges, locks, or decorative trim.
4. Measure the jamb depth where the door sits in the frame. You may need to remove some trim to get this number.

Tip: Always use a steel tape measure for the best accuracy.

Step 2: Measure the Door Frame and Jamb

Next, focus on the frame and jamb. These measurements help you match standard door sizes and ensure everything fits together.

• Measure the width from one wall surface to the other. Add about ⅛ inch if you have thicker drywall.
• Standard interior door jambs usually measure 4 ⅝ inches deep.
• Take several measurements for both width and height. Walls are not always perfectly straight.
• Check the wall depth to confirm the jamb will fit.
• Consider the finished flooring when measuring height.

Step 3: Measure the Rough Opening

Finally, measure the rough opening. This step is important for both interior and exterior doors.

1. Remove the interior casing carefully with a putty knife or pry bar.
2. Measure the width from stud to stud at several points. Record the smallest number.
3. Measure the height from the subfloor to the top of the opening on both sides. Use the smallest measurement.
4. Find the side jamb depth by measuring from the exterior edge to the interior edge, not including exterior trim.

Accurate measurements help you avoid costly mistakes and make your door installation much easier.

Conclusion

You now understand the most important facts about standard interior and exterior door dimensions. Knowing these measurements helps you plan renovations, choose the right products, and avoid costly mistakes. You can use standard sizes to make your home safer, more accessible, and energy efficient.

Tip: Always measure your door openings before you buy new doors. Double-check your numbers to make sure everything fits.

Here are the main takeaways from this guide:

• Standard interior doors usually measure 80 inches high and 30–32 inches wide.
• Exterior doors often stand 80 inches tall and 36 inches wide.
• You find special sizes for closets, bathrooms, and double doors.
• Standard thickness makes installation easier and improves security.
• Accurate door measurements help you avoid problems during installation.

You should consider these factors before you choose a door:

Factor	Why It Matters
Size	Ensures proper fit and easy access
Material	Affects durability and appearance
Accessibility	Supports safety and ADA compliance
Energy Efficiency	Reduces drafts and saves money
Style	Matches your home’s design

If you plan a renovation or new installation, use this guide to help you select the best door for each space. You can consult a professional if you have questions or need custom sizes. Local building codes may require specific dimensions, so check those rules before you start.

You make your home more comfortable and attractive when you use standard door sizes. You also save time and money by choosing doors that fit your needs.

You can now shop for doors with confidence. Measure carefully, compare options, and select the right size for every room. Your project will run smoothly, and your home will look great.

You now know the most common standard door sizes for your home. Use this table as a quick reference:

Measurement Type	Standard Size
Interior Door Width	32 inches (2/8 door)
Interior Door Height	80 inches (6/8 door)
Exterior Door Width	36 inches (3 feet)
Exterior Door Height	80 inches (6 feet 8 inches)

When you measure carefully, you avoid costly mistakes and ensure a perfect fit. Follow these steps for success:

1. Take accurate measurements for every door.
2. Double-check your numbers before buying.
3. Use a systematic process to prevent errors.

Always review local building codes and think about function, safety, and your personal style. Standard sizes help you save time, stay code-compliant, and make future upgrades easier.

ЧАСТО ЗАДАВАЕМЫЕ ВОПРОСЫ

What is the most common interior door size?

You usually find interior doors that measure 80 inches high and 30 or 32 inches wide. These sizes fit most bedrooms and hallways in American homes.

How do you measure a door for replacement?

You measure the width, height, and thickness of the existing door. Always use a steel tape measure. Measure at several points and use the smallest number for each dimension.

Can you trim a standard door to fit a smaller opening?

You can trim most wood doors by up to 1 inch on each edge. Avoid trimming hollow-core doors too much. Always check the manufacturer’s guidelines before cutting.

What size door do you need for wheelchair access?

You need a door with a minimum clear width of 32 inches for wheelchair access. This size meets ADA guidelines and allows easy movement for mobility devices.