What Is the Standard Door Width and Height?

Figuring out the right door size shouldn’t feel like solving a riddle. With so many options available, it’s easy to feel uncertain about what works best for your home or business. Understanding standard door dimensions can simplify the process and help you make confident decisions when purchasing a new door.

But what is the standard door width? Knowing this can save you a lot of time and unnecessary hassle, whether you’re replacing an older door or planning a renovation. Keep reading to explore all the essentials that will guide you to the perfect door for your space.

man measuring a doorway with a tape measure. woman using a tape measure

What Is the Standard Width & Height for Residential Doors?

How tall is a standard door, and why does it matter for your space? For most homes, the standard door width for exterior doors is 36 inches, with a standard height of 80 inches. But you might come across larger options in modern or custom builds, such as 42 inches wide and 84 or 96 inches tall.

The standard door width for interior doors typically ranges from 24 to 36 inches, with a common height of 80 inches. For closets, smaller interior doors around 24 inches wide are typical, while bedrooms or bathrooms usually feature widths of 28 or 32 inches.

What Are the Most Common Standard Door Sizes?

Interior doors typically measure 30 inches wide and 80 inches tall, making this the most common size in homes across the city. Other standard interior widths include 24, 28, 32, and 36 inches. Exterior doors are generally 36 inches wide and 80 inches tall, but larger doors that stand at 42 inches wide and 96 inches tall are often seen in newer properties.

Ask the Experts – How to Measure a Door for Replacement

Getting the measurements right is fundamental when replacing a door to avoid installation headaches later. Even a slight miscalculation can lead to a poor fit, so make sure you’re measuring door openings correctly:

Measure the Width in Three Spots

Door frames in older NYC properties can sometimes shift over time. Measure the door opening’s width at the top, middle, and bottom. Use the smallest measurement as your guide to ensure the replacement door fits snugly.

Check Door Swing Space

For swinging doors, make sure you have enough room for the door to open and close completely. Measure from the edge of the frame to the nearest wall or obstruction. This step is important for avoiding a clearance issue.

Measure Full Height, Including the Frame

Don’t overlook the door frame during height measurements. Measure from the top of the frame down to the floor for the most accurate results.

Common Mistakes When Choosing Door Sizes

Choosing the right door size may seem easy until you realize how many details go into the process. Unfortunately, skipping over a few steps can turn a simple project into a bit of a pain.

One common issue is relying on guesswork instead of accurate measurements. Doorways vary more than you’d think, even in standard homes. Measure the height, width, and depth of the opening carefully, and always include the frame in your calculations to avoid surprises.

Another area people miss? Not accounting for the door’s swing space. Double-check you have enough room for the door to open and close freely – this applies to both hinged and sliding styles.

We Help With Both Residential & Commercial Door Projects

Revamping a doorway should feel exciting, and we’re here to make it happen. At Home Supply Window & Door, we specialize in turning ideas into functional and stylish realities for both residential and commercial spaces across the NYC Metro area.

Homeowners can count on us to guide them through everything from selecting their designs to maximizing their home’s efficiency. For architects and business owners, we offer comprehensive support, from material selection to installation, ensuring every project stays on track. Whether it’s a cozy home entrance or a busy storefront, we’re here to make the process simple, stress-free, and rewarding.

Your Vision, Our Expertise – Call Home Supply Window & Door

Your home deserves a stunning, custom finish that reflects your unique style. At Home Supply Window & Door, we’ll bring your concept to life with a solution made just for your home. So why wait? Let’s turn your space into something truly remarkable. Contact us today to request your free in-home consultation and estimate.