Interior French Door Sizes | A Complete Guide

Standard interior French door sizes in the US include leaf widths of 24 to 36 inches and heights up to 96 inches, with 80 inches the most common.

For the full breakdown, see our best 15 Inch French Interior Doors guide.

Interior French door sizing can trip up even careful shoppers, usually because the listed “size” refers to the door leaf itself, not the opening you’ll actually need to fill. Understanding these numbers before you order saves a return trip and a lot of frustration, since the difference between a single leaf and a full double-door set changes what you buy.

Standard Interior French Door Sizes

Most interior French doors in the US are built for an 80-inch height, which matches the standard interior door height used throughout most American homes. You’ll find common widths for an individual leaf at 24, 28, 30, 32, or 36 inches, while paired double-door openings typically measure 48, 60, or 72 inches total.

• Single-leaf widths: 24, 28, 30, 32, and 36 inches
• Common heights: 80, 84, 92.5, and 96 inches
• Typical thickness: 1 9/16 inches or 1 3/4 inches
• Popular double-door totals: 48, 60, and 72 inches

What The Numbers Actually Mean

The published sizes you see, such as 30×80 or 72×80, are usually nominal door-leaf sizes, not the finished rough opening you’ll need. A double-door set labeled 60×80 means two leaves of 2 x 30 inches each, while a 72×80 set means 2 x 36 inches each. This distinction matters because the frame, jamb, and required clearance all add to the final opening size.

Measuring Your Interior French Door Opening

Before you order, measure the finished opening’s width and height, then account for the frame, jamb, and clearance rather than buying strictly to the slab size. Published guides consistently distinguish between the nominal leaf size, the actual unit size, and the rough opening, so knowing which one you’re measuring prevents costly mistakes.

Verify the hinge handing, swing direction, and whether the product is a slab, a prehung unit, or a full double-door set before ordering. These product formats list their sizes differently, so a “36-inch door” may not fit a 36-inch opening depending on what you select.

Accessibility Considerations

Interior doors often need more clear width than the nominal leaf size suggests for accessibility. One general door reference notes that wheelchair access typically requires at least 36 inches of clear width, which means choosing a larger leaf than you might otherwise pick.

Common Sizing Mistakes To Avoid

The most frequent error is confusing one leaf’s width with the total opening width of a double-door set. If a pairing is 60 inches total and you order a single 60-inch leaf, the door won’t fit its opening.

• Assuming all “80-inch” doors are identical: actual unit height and rough opening can differ by product type.
• Ignoring thickness compatibility: existing jambs, hardware, and wall depth all depend on the door’s thickness.
• Using exterior-door conventions: exterior doors use different thicknesses and height standards than interior sets.

Choosing Between Single And Double French Doors

Single-leaf French doors work well for closets, pantries, and standard bedroom openings, while double-door sets suit wider passageways like living room entrances or office openings. The 30×80 and 36×80 sizes appear most often for single-leaf conventions, while 60×80 and 72×80 dominate double-door openings.

Glass-panel French doors require appropriate safety glazing and careful handling during installation, so check the manufacturer’s product-specific documentation before purchase. Your final ordering decision should account for frame depth, trim, and hardware prep unique to the door system you choose, so consult the manufacturer’s exact product page before committing.