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.
| 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 |
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.
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:
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 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 |
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Frequently asked
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.
01Yes, 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.
02French 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.
03If 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.
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