How wide is the clear opening of French doors?

Interior French doors typically provide 44 to 56 inches of clear opening when both leaves are open. Exterior French doors provide 56 to 68 inches. The exact measurement depends on the total door width and whether the astragal is removable. Always measure your specific doors — never assume.

Can I open both leaves of a double front door?

Yes, but you need to release the inactive leaf first. Look for flush bolts at the top and bottom of the inactive door edge, or a surface bolt on the face of the door. Slide them to the unlocked position. If the door has an astragal, you may also need to remove it for full clearance.

What is the difference between French doors and sliding patio doors?

French doors have two hinged panels that both swing open, giving you the full frame width as your clear opening. Sliding patio doors have one fixed panel and one sliding panel — the clear opening is only half the frame width. A 72-inch French door gives you about 68 inches of clear opening; a 72-inch sliding door gives you about 34 inches.

Should I remove the astragal when moving furniture?

If the astragal is removable (screwed to one leaf), yes — removing it adds 1 to 2 inches of clear width and makes it easier to angle furniture through the center of the opening. If the astragal is integrated into the door edge, it cannot be removed. Reinstall it when you are done moving.

Home / Door Guides

French Doors & Double Doors: Measuring for Furniture Moves

French doors and double entry doors can provide the widest clear openings in your home - up to 72 inches when fully open. But the catch is knowing which leaf is the active leaf, whether both leaves can open, and whether the astragal (the center strip) is removable. Getting this right can mean the difference between a 30-inch opening and a 64-inch one.

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400 questions answered

Types of Double-Leaf Doors

Door Type	Typical Total Width	Clear Opening (Single Leaf)	Clear Opening (Both Leaves)
Interior French doors	48 - 60 inches	22 - 28 inches	44 - 56 inches
Exterior French doors	60 - 72 inches	28 - 34 inches	56 - 68 inches
Double entry doors	64 - 72 inches	30 - 34 inches	60 - 68 inches
Sliding French (patio)	60 - 72 inches (frame)	28 - 34 inches	N/A — only one panel slides

Sliding French doors look like French doors but only one panel moves. You cannot open both sides. The clear opening is limited to half the frame width.

Active Leaf vs Inactive Leaf

On most double doors, one leaf is the "active" leaf — the one with the handle that you use daily. The other is the "inactive" leaf, which is typically bolted at the top and bottom with flush bolts (slide bolts recessed into the door edge). To open the inactive leaf, look for the flush bolts at the very top and very bottom of the door edge. Slide them to the unlocked position, and the inactive leaf will swing freely. If you cannot find flush bolts, the inactive leaf may be secured with a surface bolt visible on the face of the door, or with a removable astragal.

What Is an Astragal and How to Remove It

The astragal is the vertical strip between the two door leaves. It serves as a weatherseal and a mounting point for the lock strike. On exterior doors, the astragal is critical for weather protection. On interior French doors, it is often purely decorative. There are two types:

Attached astragal — screwed or nailed to the inactive leaf. Remove the screws to detach it. This is the most common type and the easiest to remove.
T-astragal (overlapping) — a T-shaped strip that overlaps both doors. It may be screwed to one leaf or to the frame header. Look for screws along its length.
Integrated astragal — built into the door edge itself. This cannot be removed without damaging the door. On these doors, the astragal width (typically 1 to 1.5 inches) reduces the clear opening permanently.
Removing an attached astragal adds 1 to 2 inches of clear width between the two leaves.

How to Measure Double-Leaf Door Clear Opening

Open both leaves fully (90 degrees). Release all flush bolts and slide bolts on the inactive leaf.
If there is a removable astragal, remove it for maximum clearance.
Measure the full clear width from jamb to jamb — this is your maximum clear opening with both leaves open.
Subtract any hinge intrusion on both sides (1.5 to 2 inches per side, or 3 to 4 inches total).
If you cannot open the inactive leaf, measure the active leaf clear opening only — treat it as a single door.
For furniture planning, also measure the approach: can you swing both leaves open simultaneously, or does one block a hallway or wall?

Sliding Patio Doors — The Trap

Sliding patio doors are the most commonly misunderstood door type for furniture moves. Even though the total frame may be 72 inches wide, only one panel slides, giving you a clear opening of approximately 34 to 36 inches — roughly the same as a single entry door. You cannot remove the fixed panel without professional help and risk of glass breakage. If you are moving large furniture and your only wide opening is a sliding patio door, treat it as a single-door-width opening and measure accordingly.

Furniture That Benefits Most From Double Doors

Furniture Type	Typical Width	Single Door (34")	Double Door (64"+)
3-seat sofa	84 - 96 inches length	Must tilt diagonally	Fits flat through opening
King mattress	76 inches wide	Must bend or compress	Fits with room to spare
Grand piano	55 - 60 inches at widest	Does not fit	Fits with careful angling
Large sectional piece	40 - 50 inches deep	Tight or impossible	Fits comfortably
Dining table (assembled)	36 - 48 inches wide	Tight on larger tables	Fits easily

Tips for Moving Through French Doors

Always open both leaves before starting — do not try to fit furniture through one leaf if both can open.
Remove the astragal for maximum clearance, especially for items wider than 50 inches.
Protect glass panes with moving blankets or cardboard taped to the glass. French door glass is expensive to replace.
Watch for the threshold — exterior French doors often have a raised threshold or track that adds an obstacle at floor level.
If the approach is a tight hallway, you may need to angle furniture through even with both leaves open. Measure the approach angle too.
Reinstall the astragal and close the inactive leaf when done — leaving flush bolts disengaged is a security risk on exterior doors.

Measure smart

What to measure.

Four numbers decide nearly every fit check. Get these right and the rest follows.

01Clear opening width — inside edge to inside edge of the frame, door fully open
02Clear opening height from the threshold to the underside of the frame
03Extra clearance gained by lifting the door off its hinges (1.5–2 inches)
04Your furniture's smallest face in every orientation

Don't make these

Common mistakes.

Most “it didn't fit” stories trace back to one of these oversights.

⚠Measuring the door slab instead of the clear opening
⚠Forgetting the door itself eats 1.5–2 inches when it can't swing fully clear
⚠Ignoring the diagonal — many items pass a doorway tilted that won’t pass square
⚠Overlooking trim, weatherstripping, and doorstops that shrink the real opening

Go deeper

More Door Guides

Calculators & related

Frequently asked

Questions we keep getting.

How wide is the clear opening of French doors?
Interior French doors typically provide 44 to 56 inches of clear opening when both leaves are open. Exterior French doors provide 56 to 68 inches. The exact measurement depends on the total door width and whether the astragal is removable. Always measure your specific doors — never assume.
01
Can I open both leaves of a double front door?
Yes, but you need to release the inactive leaf first. Look for flush bolts at the top and bottom of the inactive door edge, or a surface bolt on the face of the door. Slide them to the unlocked position. If the door has an astragal, you may also need to remove it for full clearance.
02
What is the difference between French doors and sliding patio doors?
French doors have two hinged panels that both swing open, giving you the full frame width as your clear opening. Sliding patio doors have one fixed panel and one sliding panel — the clear opening is only half the frame width. A 72-inch French door gives you about 68 inches of clear opening; a 72-inch sliding door gives you about 34 inches.
03
Should I remove the astragal when moving furniture?
If the astragal is removable (screwed to one leaf), yes — removing it adds 1 to 2 inches of clear width and makes it easier to angle furniture through the center of the opening. If the astragal is integrated into the door edge, it cannot be removed. Reinstall it when you are done moving.
04

Will it fit? Check before you commit.

Enter your item and space above, get an instant fit verdict.

Open the fit calculator

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Home / Door Guides

French Doors & Double Doors: Measuring for Furniture Moves

Trusted across thousands of fit checks · updated daily

400 questions answered

Types of Double-Leaf Doors

Door Type	Typical Total Width	Clear Opening (Single Leaf)	Clear Opening (Both Leaves)
Interior French doors	48 - 60 inches	22 - 28 inches	44 - 56 inches
Exterior French doors	60 - 72 inches	28 - 34 inches	56 - 68 inches
Double entry doors	64 - 72 inches	30 - 34 inches	60 - 68 inches
Sliding French (patio)	60 - 72 inches (frame)	28 - 34 inches	N/A — only one panel slides

Sliding French doors look like French doors but only one panel moves. You cannot open both sides. The clear opening is limited to half the frame width.

Active Leaf vs Inactive Leaf

What Is an Astragal and How to Remove It

Attached astragal — screwed or nailed to the inactive leaf. Remove the screws to detach it. This is the most common type and the easiest to remove.
T-astragal (overlapping) — a T-shaped strip that overlaps both doors. It may be screwed to one leaf or to the frame header. Look for screws along its length.
Integrated astragal — built into the door edge itself. This cannot be removed without damaging the door. On these doors, the astragal width (typically 1 to 1.5 inches) reduces the clear opening permanently.
Removing an attached astragal adds 1 to 2 inches of clear width between the two leaves.

How to Measure Double-Leaf Door Clear Opening

Open both leaves fully (90 degrees). Release all flush bolts and slide bolts on the inactive leaf.
If there is a removable astragal, remove it for maximum clearance.
Measure the full clear width from jamb to jamb — this is your maximum clear opening with both leaves open.
Subtract any hinge intrusion on both sides (1.5 to 2 inches per side, or 3 to 4 inches total).
If you cannot open the inactive leaf, measure the active leaf clear opening only — treat it as a single door.
For furniture planning, also measure the approach: can you swing both leaves open simultaneously, or does one block a hallway or wall?

Sliding Patio Doors — The Trap

Furniture That Benefits Most From Double Doors

Furniture Type	Typical Width	Single Door (34")	Double Door (64"+)
3-seat sofa	84 - 96 inches length	Must tilt diagonally	Fits flat through opening
King mattress	76 inches wide	Must bend or compress	Fits with room to spare
Grand piano	55 - 60 inches at widest	Does not fit	Fits with careful angling
Large sectional piece	40 - 50 inches deep	Tight or impossible	Fits comfortably
Dining table (assembled)	36 - 48 inches wide	Tight on larger tables	Fits easily

Tips for Moving Through French Doors

Always open both leaves before starting — do not try to fit furniture through one leaf if both can open.
Remove the astragal for maximum clearance, especially for items wider than 50 inches.
Protect glass panes with moving blankets or cardboard taped to the glass. French door glass is expensive to replace.
Watch for the threshold — exterior French doors often have a raised threshold or track that adds an obstacle at floor level.
If the approach is a tight hallway, you may need to angle furniture through even with both leaves open. Measure the approach angle too.
Reinstall the astragal and close the inactive leaf when done — leaving flush bolts disengaged is a security risk on exterior doors.

Measure smart

What to measure.

Four numbers decide nearly every fit check. Get these right and the rest follows.

01Clear opening width — inside edge to inside edge of the frame, door fully open
02Clear opening height from the threshold to the underside of the frame
03Extra clearance gained by lifting the door off its hinges (1.5–2 inches)
04Your furniture's smallest face in every orientation

Don't make these

Common mistakes.

Most “it didn't fit” stories trace back to one of these oversights.

⚠Measuring the door slab instead of the clear opening
⚠Forgetting the door itself eats 1.5–2 inches when it can't swing fully clear
⚠Ignoring the diagonal — many items pass a doorway tilted that won’t pass square
⚠Overlooking trim, weatherstripping, and doorstops that shrink the real opening

Go deeper

More Door Guides

Calculators & related

Frequently asked

Questions we keep getting.

How wide is the clear opening of French doors?
Interior French doors typically provide 44 to 56 inches of clear opening when both leaves are open. Exterior French doors provide 56 to 68 inches. The exact measurement depends on the total door width and whether the astragal is removable. Always measure your specific doors — never assume.
01
Can I open both leaves of a double front door?
Yes, but you need to release the inactive leaf first. Look for flush bolts at the top and bottom of the inactive door edge, or a surface bolt on the face of the door. Slide them to the unlocked position. If the door has an astragal, you may also need to remove it for full clearance.
02
What is the difference between French doors and sliding patio doors?
French doors have two hinged panels that both swing open, giving you the full frame width as your clear opening. Sliding patio doors have one fixed panel and one sliding panel — the clear opening is only half the frame width. A 72-inch French door gives you about 68 inches of clear opening; a 72-inch sliding door gives you about 34 inches.
03
Should I remove the astragal when moving furniture?
If the astragal is removable (screwed to one leaf), yes — removing it adds 1 to 2 inches of clear width and makes it easier to angle furniture through the center of the opening. If the astragal is integrated into the door edge, it cannot be removed. Reinstall it when you are done moving.
04

Will it fit? Check before you commit.

Enter your item and space above, get an instant fit verdict.

Open the fit calculator

French Doors & Double Doors: Measuring for Furniture Moves

Types of Double-Leaf Doors

Active Leaf vs Inactive Leaf

What Is an Astragal and How to Remove It

How to Measure Double-Leaf Door Clear Opening

Sliding Patio Doors — The Trap

Furniture That Benefits Most From Double Doors

Tips for Moving Through French Doors

What to measure.

Common mistakes.

Related guides & calculators

More Door Guides

Calculators & related

Questions we keep getting.

How wide is the clear opening of French doors?

Can I open both leaves of a double front door?

What is the difference between French doors and sliding patio doors?

Should I remove the astragal when moving furniture?

Will it fit? Check before you commit.

French Doors & Double Doors: Measuring for Furniture Moves

Types of Double-Leaf Doors

Active Leaf vs Inactive Leaf

What Is an Astragal and How to Remove It

How to Measure Double-Leaf Door Clear Opening

Sliding Patio Doors — The Trap

Furniture That Benefits Most From Double Doors

Tips for Moving Through French Doors

What to measure.

Common mistakes.

Related guides & calculators

More Door Guides

Calculators & related

Questions we keep getting.

How wide is the clear opening of French doors?

Can I open both leaves of a double front door?

What is the difference between French doors and sliding patio doors?

Should I remove the astragal when moving furniture?

Will it fit? Check before you commit.