How to Fix a Sagging Door
Tighten loose top-hinge screws to lift your door back into place.
Compiled by DIY Repair Guide · reviewed 2026-09-20 ·how we research these
Learning how to fix a sagging door comes down to securing the top hinge screws before you consider taking the door off its frame or trimming the wood. At DIY Repair Guide, we compiled this diagnostic sequence from verified carpentry trade practices to help homeowners restore door clearance using simple hand tools. In most homes, a sagging door is not warped wood or a cracked frame, but a heavy door pulling short screws loose from the wooden jamb over thousands of swings.
A quick inspection separates an isolated hardware problem from structural building settling. The recommendation flips immediately if multiple doors stick simultaneously, drywall cracks radiate diagonally from upper door corners, or the entire floor slopes under the doorway. In that multi-room settling scenario, replacing individual hinge screws will not correct an out-of-square wall, and you should hire a qualified carpenter or foundation specialist to assess the framing. For an isolated dragging door, you can resolve the misalignment in twenty minutes without removing the slab.
Why Doors Sag: the Top Hinge, Almost Every Time
A sagging door almost always fails because the top hinge pulls away from the jamb under the cantilevered weight of the door slab. Every time a door opens, its weight acts like a lever that exerts outward tension on the upper hinge and compressive inward force against the lower hinge. Standard builder-grade hinges rely on short three-quarter-inch or one-inch screws that bite solely into the three-quarter-inch soft pine jamb.
Over years of regular operation, those short upper screws strip out their pilot holes and create an elongated void in the wood grain. As the top hinge leaf pulls away from the frame by even an eighth of an inch, the opposite top corner drops downward and the lower latch-side corner swings down toward the floor. You can confirm this failure mode by watching the top hinge seam while you pull upward on the doorknob. Any movement between the hinge leaf and the wooden jamb indicates stripped screw threads.
Tools and Materials Needed for the Repair
Gathering the right mechanical fasteners and basic hand tools before starting ensures that the door stays supported throughout the adjustment. Most hinge screw repairs require only a standard screwdriver or a variable-speed cordless drill, alongside replacement wood screws of adequate length to reach the house framing behind the jamb.
Having a small container of wood glue, several wooden golf tees or small hardwood dowels, a utility knife, and a few scraps of thin cardboard on hand allows you to handle stripped screw holes or subtle hinge angle adjustments without making multiple trips to the hardware store.
- Cordless drill or hand screwdriver: Drives fasteners smoothly without stripping screw heads.
- Three-inch wood screws: Reaches past the jamb and shim space directly into the wall stud.
- Wooden golf tees or hardwood dowels: Fills enlarged screw holes to give fasteners fresh wood grain.
- Standard wood glue: Bonds wooden plugs inside stripped jamb holes for permanent thread engagement.
- Utility knife and medium-grit sandpaper: Trims wooden plugs flush with the hinge mortise and smooths binding edges.
- Cardboard or plastic hinge shims: Adjusts the door tilt angle inside the frame when the latch corner drags.
How to Fix a Sagging Door with Longer Screws
The fastest and most permanent solution for an upper hinge pulling loose is replacing factory screws with long three-inch wood screws. While standard hinge screws only penetrate the three-quarter-inch finish jamb, a three-inch fastener reaches past the hollow shim gap directly into the structural two-by-four framing of the wall. Anchoring into this structural stud pulls the top hinge leaf tight against the jamb and holds the entire door vertical.
Always swap screws one at a time while the door stays hung on its hinges. Removing all fasteners simultaneously allows the door slab to fall forward, which can bend the lower hinge leaves or tear out the bottom mortise wood. Back out the center screw closest to the door stop molding first to establish your anchor into the stud.
- Step 1: Wedge a wood shim or folded cardboard under the bottom outer corner of the door to support its weight while working.
- Step 2: Remove a single factory screw from the jamb-side leaf of the top hinge using a manual screwdriver or driver bit.
- Step 3: Drive a three-inch wood screw with matching head finish into the empty hole at a slight angle toward the wall framing.
- Step 4: Tighten the fastener slowly until the screw head seats completely flush inside the countersunk hinge hole.
- Step 5: Remove the support wedge from beneath the door, swing the slab closed, and verify that the perimeter clearance gap is uniform.
Drive screws slowly into the stud. Over-tightening a three-inch screw can bow a thin jamb inward toward the rough framing, which causes the door edge to bind against the stop molding.
How to Fix a Sagging Door with the Golf-Tee Method
When screw holes in the door jamb are stripped so badly that replacement screws spin freely without gripping, you must rebuild the surrounding wood grain. The wooden golf-tee method fills the hollow chamber with dense hardwood and fresh cellulose fibers. Once coated in standard polyvinyl acetate wood glue, the tapered shape of a golf tee creates an expanding plug that wedges tightly into stripped screw passages.
Remove the loose screw completely and clean away any splintered wood fragments from inside the hole. Apply a liberal coat of wood glue to the shank of a standard wooden golf tee, then push the pointed end deep into the stripped hole until it seats firmly. Tap the blunt end lightly with a hammer to compress the plug into the voids of the jamb grain.
Allow the wood glue to cure for thirty minutes so the plug resists twisting under tool torque. Use a sharp utility knife or small chisel to slice the remaining head of the golf tee perfectly flush with the recessed hinge mortise. Once trimmed, drill a small one-eighth-inch pilot hole into the center of the hardwood plug, replace the hinge leaf, and drive your fastener straight into the reinforced wood.
How to Fix a Sagging Door That Won't Latch
A door that will not latch properly usually suffers from vertical latch-bolt misalignment caused by the same hinge sag that tilts the slab downward. As the top hinge leans away from the frame, the latch bolt drops lower than the opening in the brass strike plate mounted on the opposite jamb. Homeowners often assume the lockset failed, but correcting the hinge sag directly restores the original latch alignment in most installations.
If the door swings freely after securing the top hinge but the latch bolt still catches slightly on the strike plate edge, you can make a minor secondary adjustment. Color the beveled face of the latch bolt with a dry-erase marker, close the door firmly against the stop, and inspect the metal strike plate to identify where the bolt rubs.
If the bolt contacts the metal lip by less than an eighth of an inch, remove the strike plate and enlarge the interior opening using a flat metal file. If the alignment is off by more than an eighth of an inch, unscrew the strike plate, deepen or extend the mortise in the wooden jamb with a wood chisel, and reattach the plate at the corrected height so the bolt clicks home smoothly. For a broken mechanism, see our guide on how to replace a doorknob.
When It Is Not the Hinges: Frame, Hinge Wear, or a Swollen Door
While loose hinge screws account for most sagging doors, other mechanical and environmental factors can cause a door to bind or drag across the floor. In older residences, foundation settling can cause the door frame to shift out of plumb and square. When the jamb itself shifts into a parallelogram, the top latch corner of the door collides with the upper header jamb even if the hinges remain completely tight.
Seasonal humidity changes can also cause solid wood and composite doors to absorb airborne moisture and swell along their edges. When a door binds against the jamb due to seasonal swelling, check the reveal gap around the entire perimeter with a thin coin. If the gap remains perfectly even along the top but pinches along the side, sand the binding edge with medium-grit sandpaper, taking care never to remove wood from the factory-beveled hinge side or latch recess.
Inspect hinge pins for metal wear. If grey metal dust coats the hinge knuckles, the internal pin is ground down. Replace the hinge hardware before attempting to re-shim the door.
How to Fix a Sagging Door with Shims Behind the Hinge
Placing thin shims behind a hinge leaf changes the vertical tilt angle of the door slab without requiring structural carpentry work. When a door drags along the floor on the strike side but shows adequate clearance along the upper header, placing a shim behind the lower hinge pushes the bottom corner away from the frame and elevates the latch side. Conversely, placing a shim behind the top hinge moves the upper corner outward to lower the strike edge.
Cut thin shims from dense chipboard, cereal box cardboard, or manufactured plastic shim stock to match the exact rectangular shape of the hinge mortise. Back out the screws on the targeted hinge leaf while the door remains propped open on a protective wedge. Slide the shim directly into the mortise pocket behind the metal leaf, poke holes through the material for the screws, and drive the fasteners back into the jamb to lock the new angle in place.
| Symptom | Root Cause | Target Location | Recommended Repair Method |
|---|---|---|---|
| Top corner pulls away, bottom drags | Stripped factory hinge screws | Top hinge jamb leaf | Drive 3-inch screws through jamb into 2x4 wall stud |
| Screws spin freely in hollow hole | Damaged interior wood grain | Top hinge screw holes | Insert glued wooden golf tees, cut flush, drill pilot hole |
| Door drags on floor, top gap even | Incorrect frame tilt angle | Bottom hinge mortise | Place cardboard shim behind lower hinge to lift strike edge |
| Latch bolt strikes below plate opening | Slight door sag or settled frame | Strike plate on latch jamb | File strike opening or remount plate to match latch drop |
| Door edge rubs jamb only in humid weather | Wood expansion from moisture | Outer strike edge of door | Sand binding strike edge lightly and reseal exposed wood |
DIY or Call a Carpenter for Sagging Doors
Fixing a sagging door with longer screws, wooden plugs, or thin hinge shims is a low-risk project that any homeowner can complete safely using basic hand tools. These mechanical adjustments preserve your existing door slab and finish trim while resolving annoying floor drag and latch failure in minutes. If your door requires total replacement rather than realignment, measure your existing rough opening and take that measurement with you when you shop for a replacement slab and frame.
Call a professional finish carpenter or general contractor if the door frame itself is visibly racked out of square, if the header jamb sags downward in the middle, or if multiple doors throughout the house suddenly bind at the same time. Widespread door sticking often points to broken floor joists, damaged wall framing, or real foundation movement that requires structural stabilization rather than hardware adjustment. For an isolated dragging slab, start by replacing the short top hinge screws today.
Common questions
How do you fix a sagging door without removing it?
To fix a sagging door without removing it, prop the bottom outer corner on a wooden shim to take tension off the hinges. Remove one screw at a time from the top hinge leaf on the frame side and replace it with a three-inch wood screw driven into the wall stud. Anchoring into the structural framing pulls the top hinge tight and lifts the opposite corner back into alignment.
How do I fix a sagging door hinge with stripped screw holes?
To fix a stripped door hinge hole, remove the loose screw and coat a wooden golf tee or small hardwood dowel in wood glue. Press the wooden plug deeply into the stripped hole, let the glue cure for thirty minutes, and trim the plug flush with a utility knife. Drill a small one-eighth-inch pilot hole into the center of the plug and re-drive the screw into solid wood.
How do I fix a sagging door frame that is out of square?
An out-of-square door frame cannot be corrected simply by tightening hinge screws. You must remove the casing trim around the doorway, cut through the existing installation nails between the jamb and rough opening, and use wooden shims to square the jamb before refastening it with finish nails. If framing settling is severe, plane the door edge to match the angle of the opening.
How do I fix a sagging door at the bottom that drags on the floor?
If a door drags at the bottom outer corner while the top gap remains even, install a thin cardboard or plastic shim behind the lower hinge leaf. Loosen the bottom hinge screws, slide the shim into the recessed mortise between the hinge and the frame, and retighten the screws. This pushes the bottom of the door inward and tilts the outer bottom edge upward away from the floor.
Why does my door drag on the floor every time I open it?
A door drags on the floor when the top hinge pulls away from the wall jamb under the door's cantilevered weight, tipping the opposite bottom corner downward. Other common causes include worn hinge pins, seasonal moisture swelling along the bottom rail, or loose carpeting that bunches along the swing path. Inspect the top hinge seam first to verify whether loose screws are tilting the slab.