Commercial Door Dimensions Calculator

Here’s a comprehensive table of Commercial Door Dimensions covering all the essential information for various door types typically used in commercial settings.

Door Type	Standard Width (inches)	Standard Height (inches)	Description & Uses
Single Door	36	80	Standard door used for general entryways and exits. Widely used in offices, schools, and retail stores.
Double Door	72	80	Consists of two single doors side-by-side. Common in larger entryways such as lobbies, hospitals, and gyms.
Sliding Door	72	80	Often used for areas requiring wide access, such as warehouses and large office spaces.
Glass Door	36	80	Aesthetic doors commonly used at storefronts, banks, and high-end offices for visibility and style.
Fire-Rated Door	36	84	Specially rated for fire resistance. Common in stairwells, industrial facilities, and emergency exits.
ADA-Compliant Door	36	80	Meets accessibility standards with a 32-inch minimum clear width. Used in any ADA-compliant public space.
Warehouse Door	96	96	Large doors typically made of steel, often used in loading docks and warehouses for equipment access.
Revolving Door	72	Varies	Allows continuous traffic flow while limiting drafts. Common in malls, airports, and large office buildings.
Emergency Exit Door	36	84	Includes panic bars, often fire-rated. Located in strategic exits for safe evacuation.
Soundproof Door	36	80	Used in music studios, theaters, and conference rooms to block sound.
Automatic Door	36–72	80	Often sensor-activated for easy entry, commonly used in hospitals, airports, and retail stores.

Key Points for Choosing and Installing Commercial Doors

• Width and Height: Generally, standard single doors are 36 inches wide by 80 inches tall, while double doors double the width for larger entries. Warehouse doors and other industrial-use doors are typically larger.
• ADA Compliance: For public access, doorways must meet ADA (Americans with Disabilities Act) standards, providing a minimum of 32 inches of clear width and handles that are easy to operate.
• Fire-Rated Requirements: Fire-rated doors must meet specific safety regulations and are usually required for emergency exits and stairwells in buildings. These doors are typically 36 inches wide by 84 inches tall.
• Material: The door material can impact security, durability, and fire safety. Steel, aluminum, and tempered glass are common in commercial doors.
• Soundproofing: Doors that require sound isolation, such as in theaters or conference rooms, often come with special acoustic materials.
• Revolving and Automatic Doors: These are useful in high-traffic areas to manage the flow and help maintain building temperature by limiting outside air intrusion.

FAQs

What are the dimensions of an average commercial door?

• The average commercial single door is 36 inches wide by 80 inches tall. However, doors can vary depending on usage, with some reaching heights of up to 96 inches in larger buildings.

What are the dimensions of a standard American door?

• The standard interior American door is 30–36 inches wide and 80 inches tall for residential use. Exterior doors are often 36 inches wide by 80 inches.

How to measure a commercial door?

• Measure the width (side to side) and height (top to bottom) of the door in inches. For frames, measure the door thickness and any additional space for the frame or trim.

What size is a commercial internal door?

• Commercial internal doors are typically 36 inches wide by 80 inches tall for general access, though larger spaces like conference rooms may have double doors measuring 72 inches wide.

What are American door standards?

• American door standards follow ANSI/BHMA requirements, with a common size of 36 x 80 inches for commercial use. ADA-compliant doors must have a minimum of 32 inches clear width.

What size is an American double door?

• Standard American double doors are 72 inches wide by 80 inches tall, each panel measuring around 36 inches.

What size is a commercial shop door?

• A standard commercial shop door is typically 36 inches wide by 80 inches tall, with larger shops sometimes opting for double doors (72 inches wide).

What is the minimum door width for commercial building regulations?

• The minimum door width for commercial buildings is 32 inches clear width to comply with ADA accessibility requirements.

What makes a door a commercial door?

• A commercial door is designed for durability, security, and high-traffic areas, often meeting fire, accessibility, and safety standards. They’re typically made from steel, aluminum, or reinforced glass.

How big is a commercial door frame?

• A commercial door frame for a 36-inch door is usually about 40 inches wide and 84 inches tall to account for the frame and installation space.

How wide is a commercial kitchen door?

• Commercial kitchen doors are generally 36 inches wide for easy access, with some double-swing or double doors reaching 72 inches wide for larger kitchen operations.

How much gap between commercial doors?

• A gap of 1/8 to 1/4 inch is standard for proper alignment and smooth operation, especially in fire-rated doors where gaps are more strictly regulated.

What are the measurement standard commercial door dimensions?

• Standard commercial doors are commonly 36 inches wide by 80 inches tall for single doors, with 72 inches by 80 inches for double doors.

How wide are commercial double doors?

• Commercial double doors are typically 72 inches wide in total, with each door panel measuring around 36 inches.

What is the width of a commercial roller door?

• Commercial roller doors vary widely but are often 8–12 feet wide to accommodate larger equipment or vehicles in industrial settings.

What size is an interior door in the USA?

• Interior doors in the USA are typically 30–36 inches wide by 80 inches tall for residential buildings and 36 inches wide by 80 inches for commercial buildings.

What is the difference between American and European doors?

• American doors are typically larger (30–36 inches wide) and use pre-hung frames, while European doors are often narrower (up to 30 inches) and frequently use metric measurements. European designs also commonly feature inward opening.

What is ADA-compliant door size?

• ADA-compliant doors must have a minimum of 32 inches clear width when fully open, with standard commercial heights of 80 inches.

What size is a British door?

• British internal doors are usually 28–32 inches wide by 78 inches tall, smaller than typical American doors.

How big is a double in America?

• An American double door is generally 72 inches wide by 80 inches tall, with each door panel around 36 inches wide.

How thick is an American standard door?

• Most American doors are 1 3/4 inches thick for commercial doors, with some residential doors measuring 1 3/8 inches thick.

What is considered a commercial door?

• Commercial doors are specifically designed for public buildings, meeting fire, safety, and accessibility standards. They’re built for durability and may include features like reinforced materials, fire ratings, and ADA compliance.

What is the width of a commercial door in the UK?

• Commercial doors in the UK are typically 32–36 inches wide to accommodate accessibility standards.

What is the standard size of a double door?

• The standard size of a double door is 72 inches wide by 80 inches tall, with each panel measuring approximately 36 inches.

How wide should a commercial door be?

• A standard commercial door should be 36 inches wide for ADA compliance, though some entryways, such as emergency exits or loading docks, may require larger dimensions.

Do commercial doors have to open outward?

• In most cases, exterior commercial doors should open outward for safety in emergencies, allowing for easier evacuation.

How tall are commercial entrance doors?

• Commercial entrance doors are typically 80 inches tall, though they may range up to 96 inches for specific uses such as lobbies or high-traffic entry points.