A hinge that squeaks, sags, or drags is one of the most common door problems, and one of the easiest to fix yourself. You do not need to pull the door off its frame or hire a carpenter.
The trick is to swap the hinges one at a time, so the door stays hung while you work. Below you will size the right hinge, remove the worn one, set the new one, and pick up a few pro tricks for a kick-resistant entry door and a squeak-free swing.
Key Takeaways
- Match the hinge to the door: ball-bearing hinges for heavy entry doors, plain-bearing for lightweight interior doors.
- Measure before you buy: check the hinge height (3.5-inch interior, 4-inch exterior) and whether the corners are square or rounded (1/4 or 5/8-inch radius).
- Work one hinge at a time so the door stays hung and you never wrestle the full slab.
- Fix stripped holes with wood glue and toothpicks, and drop a 3-inch screw into exterior hinges to resist kick-ins.
Types of Door Hinges
Choosing the right hardware makes the installation easier and keeps the door working correctly for years. The main split is between heavy-duty security hinges and standard interior options.
Ball-Bearing Door Hinge
Ball-bearing hinges are the top choice for heavy entry doors. They use lubricated bearings between the hinge knuckles to cut friction. That makes a heavy door easier to open and stops the hinge from wearing out over time. If you have a solid-core door or a heavy exterior slab, this is your best pick.
Plain-Bearing (Standard) Hinges
These are the default for lightweight interior hollow-core doors. They have no bearings between the knuckles, so the metal surfaces move against each other directly. They are affordable and work well for pantries, bedrooms, and bathrooms, but they wear out faster on heavy doors.
Spring Door Hinges
Spring hinges hold a mechanism that pulls the door closed on its own. Code often requires them on a door leading to an attached garage, so fumes cannot drift into the house. You can adjust the tension on most spring hinges to control how fast the door closes.
Security Hinges (NRP)
On an outward-swinging exterior door, the hinge pin sits on the outside where anyone can reach it. Security hinges answer this with a Non-Removable Pin (NRP) or a set-screw stud. Even if someone knocks out the barrel, the stud keeps the door locked into the frame.
Before You Buy Check The Corners
Most residential hinges come in three corner shapes: square, 1/4-inch radius (rounded), or 5/8-inch radius (rounded). Grab a tape measure or check the packaging from your old hinges. You have to match the new hinge’s corner shape to the existing cutout (mortise) on your door, or it will not fit.
How to Install a Door Hinge Yourself
The easiest way to replace hinges is to swap them one at a time while the door stays hung. That saves you from lifting a heavy slab and trying to realign it alone.
What You Will Need
- Drill/Driver.
- Self-centering drill bit (Vix bit).
- Hammer.
- Tape measure.
- Utility knife.
- New hinges (matched size and shape).
- Wood screws (usually included).
- Wood toothpicks or dowels (for stripped holes).
- Wood stain or paint.
Removing the Old Hinge
Start with the top hinge. The middle and bottom hinges plus the latch keep the door supported while you work.
1. Stabilize the Door
Even with the door left up, it helps to slide shims or wooden blocks under the bottom edge. This takes the weight off the screws and stops the door from sagging the moment you free a hinge.
2. Unscrew the Top Hinge
Set your drill to reverse and back the screws out of both the door slab and the jamb. If paint has sealed the hinge to the wood, score around the edges with a utility knife first. That keeps the paint from peeling off the door as you pull the metal plate away.
3. Inspect the Mortise
Check the recessed area (mortise) where the old hinge sat. If the wood looks healthy, you are ready to install. If the screw holes are stripped or wallowed out, pack them with wood glue and toothpicks, let it dry, then snap off the excess. That gives the new screws fresh, solid wood to bite into.
Installing the New Hinge
1. Align the New Hinge
Set the new hinge into the mortise. It should sit flush with the surface of the wood. If it stands too proud, the door will bind; if it sits too deep, the door may not close all the way.
2. Drill Pilot Holes
Use a self-centering bit to drill the pilot holes. Do not skip this step. Driving screws straight into bare wood can split the jamb or send a screw in crooked, which pulls the hinge out of line.
3. Secure the Hinge
Drive the screws into the jamb and the door with your drill. Use a low torque setting so you do not strip the heads.
4. Repeat the Process
Once the top hinge is secure, move to the bottom hinge, then finish with the middle one. Working in that order keeps the door stable the whole time. Pull the support blocks and test the swing.
Tips for Pro-Level Hinge Installation
You do not need to be a master carpenter to get clean results. A few simple tricks head off the common headaches.
Use Longer Screws for Security
Standard hinge packs usually ship with short 1-inch screws that only grip the jamb. For an exterior door, replace the center screw on each hinge with a 3-inch screw. The longer screw passes through the jamb and bites into the structural stud behind the trim, which is what actually resists a kick. Since most break-ins are kick-ins at the door, this one cheap swap does a lot of the security work. Angle the long screws slightly toward the center of the stud so they grab solid framing instead of its edge.
Stop the Squeak
If you are installing plain-bearing hinges, pull the pin before installation and coat it with white lithium grease or silicone lubricant. That heads off the “haunted house” squeak before it starts. Skip WD-40 here, since it attracts dust and dries out fast.
Fixing a Binding Door
If the door will not close cleanly after installation, check the hinge depth. If a hinge sits too deep in the mortise, slip a piece of thin cardboard (a cereal box works) behind the hinge plate as a shim. That pushes the hinge out slightly and can fix the alignment without any woodworking.
How Many Hinges the Door Needs
If you are hanging a new slab, follow the trade rule of one hinge for every 30 inches of door height. A standard interior door taller than 60 inches gets at least three hinges, and an 84-inch or taller door often needs four. A light hollow-core door can technically hang on two, but a third hinge stops it from warping (banana-ing) with humidity swings, spreads the weight evenly, and keeps the weatherstrip seal tight. Add one more hinge if the door is wider than 36 inches or heavier than about 150 pounds.
FAQs
Is It Easy to Change Door Hinges?
Changing a door hinge is a beginner-friendly job, especially if you swap one hinge at a time and leave the door hanging. Each hinge takes about 10 to 15 minutes with a drill, a matched replacement, and a self-centering bit. The one part that trips people up is matching the new hinge’s size and corner radius to the old cutout, so measure before you buy.
How Do You Know What Size Hinge to Buy?
To size a hinge, measure the height of your existing one and match it exactly. Most interior doors use 3.5-inch hinges, while heavier exterior doors typically use 4-inch or 4.5-inch hinges. Match the corner style (square or rounded) and the width too, since a mismatched leaf will not seat in the existing mortise.
Why Does My Door Swing Open by Itself?
A door that drifts open or closed on its own, called ghosting, almost always means the hinges are out of plumb, so gravity pulls the door toward its heavy side. The common fix is to knock out one hinge pin, rest it on a hard surface, and give it a slight bend with a hammer; the added friction holds the door where you leave it. Tightening loose hinge screws or shimming a hinge can square the door back up as well.
What Is the Difference Between 1/4 and 5/8 Radius Corners?
The difference is how sharply the hinge corners are rounded: a 1/4-inch radius is a gentle curve, while a 5/8-inch radius is a deeper, more pronounced one. You need to match the radius to the mortise already cut in your door, or the leaf will not sit flush. The reliable way to check is a corner-radius gauge, or just take the old hinge to the store and match it on the shelf.
Where Should I Place Hinges on a New Door?
On a new door, set the top hinge 7 inches down from the top and the bottom hinge 11 inches up from the bottom, a spacing pros call the 7-11 rule. A third hinge goes centered exactly between them. This layout keeps the leaves clear of the door rails and weatherstripping while spreading the door’s weight evenly across the jamb.
How Do You Cut a Hinge Mortise?
To cut a hinge mortise, hold the hinge leaf in place, trace its outline with a utility knife, then chisel out a shallow recess so the leaf sits flush with the wood. Work in thin passes and check the depth often, because a mortise cut too deep leaves the hinge loose and can make the door bind. On a replacement job you reuse the existing mortise, so this only comes up when you hang a fresh slab or jamb.
Can You Paint Over Door Hinges?
You can paint over door hinges, but it is not the best idea, since paint builds up inside the barrel and knuckles and causes friction, squeaks, and chipping as the door moves. For a clean finish, unscrew the hinge, spray it separately with a metal enamel, and reinstall it once it is fully dry. If you would rather leave it on, at least score the paint around the edges first so it does not peel.
Final Thoughts
Fresh hinges are one of the cheapest upgrades in the house for what they fix. An hour of work can stop a sagging door, quiet a squeak, and harden an entry door against a kick-in.
Measure the old hinge for size and corner radius before you buy, swap them one at a time so the door stays put, and drop a 3-inch screw into each exterior hinge while you are in there.
