
06 Jun How To Replace A Door: A Simple Guide For Any Home
Learning how to replace a door can seem tricky, but it’s not as hard as it looks. Whether it’s a squeaky bedroom door or a worn-out bathroom door, a fresh install can improve comfort, safety, and appearance. Many homeowners decide to replace a door when they notice signs like sticking, sagging, or damage. In this blog, we’ll walk you through everything from removing the old door to installing a new one. CKsidaho makes sure you get it right the first time. Our guide is simple enough for anyone to follow and includes every step.
Understanding The Basics of Door Replacement
Before you start changing a door, it’s important to understand what kind of door you have. There are two main types: slab doors and prehung doors. A slab is just the door without any frame or hardware, while a prehung door comes already attached to a frame. Interior doors are usually lighter and easier to replace, while exterior doors are heavier and need weather sealing. Also, decide if you’re replacing just the slab or the whole frame. Knowing this makes it easier to choose the right materials and tools.

Signs It’s Time To Replace Your Interior or Exterior Door
You may not always know when it’s time for a door replacement. Watch for these signs: hard to close or open, visible cracks, dents, or if the frame is splitting. Sometimes, replacing interior doors is needed simply to match your home’s design. Replacing a door slab may be enough in some cases, but if there’s damage to the frame, a full replacement is smarter. If you’re changing bedroom doors or bathroom doors, noise and privacy can also be signs it’s time for an update.
How To Replace a Door: Tools and Materials Checklist
Here’s what you’ll need to replace a door:
- Screwdriver or drill
- measuring Tape
- Hammer
- Pry bar
- Shims
- Screws or nails
- New slab or prehung door
- Door hardware (hinges, knob, latch)
- Level
If you’re doing a bathroom door replacement, moisture-resistant materials are important. Replacing prehung interior doors also means checking that the new frame fits the opening exactly. You may want to pick up door casing or trim if you’re also updating the look.

Step-By-Step Guide: How To Replace a Bedroom or Bathroom Door
- Remove the Old Door
Take out the hinge pins using a hammer and nail or pin punch. Carefully lift the old door off the hinges. - Remove the Frame (if Prehung)
If you’re replacing a prehung interior door, gently pry away the frame using a pry bar. - Measure the Door Opening
Measure the height and width of the existing door to ensure your new one fits properly. - Test the Fit
Place the new door (or prehung unit) into the opening to check the alignment and size. - Install Hinges (for Slab Door)
Mark and chisel hinge locations on the new door. Attach the hinges securely with screws. - Hang the Door
Line up the hinges and hang the door on the frame. Use a level to make sure it swings freely and evenly. - Install Hardware
Attach the door knob, latch, and any other hardware needed. - Check Operation
Open and close the door a few times to ensure it doesn’t rub or stick.
Replacing a Prehung Interior Door vs. a Door Slab
A slab door is best if your frame is in good shape. But if the frame is damaged or old, replacing it with a prehung door is smarter. Prehung doors come with the frame attached and already aligned. They take a little more time to install, but can save you hassle in the long run. A door slab installation may need careful hinge placement and measuring. Whichever option you pick, replacing a door can boost your home’s function and feel.
How To Replace a Door Frame Without Mistakes
To replace a door frame, remove the trim around the frame using a pry bar. Then, pull out the old frame carefully. Measure the opening and cut a new frame if needed. Place the new frame into the wall, using shims to keep it square and level. Nail or screw it into the studs. Afterward, reattach the trim. Replacing interior doors and frames takes time but ensures a stronger, better fit. Be gentle to avoid damaging the wall during removal.
How Much Does It Cost To Replace a Door And Frame?
Costs vary depending on the type of door and whether it’s an interior or exterior replacement. Replacing an interior door and frame can cost between $100 to $400 if you do it yourself. Hiring someone could raise that to $500 or more. A bathroom door replacement or bedroom door replacement may cost less since they’re lighter and simpler. Prehung doors cost more but save time on setup. Home centers like Lowe’s offer installation packages with prices that depend on the door type and labor.

Measuring a Door For a Perfect Replacement Fit
Start by measuring the height, width, and thickness of the old door. Measure the frame opening, too. Make sure to check if your door opens inward or outward and from which side it swings. These small things matter when choosing your replacement. If you’re replacing a slab door, hinge spacing is also important. If the measurements don’t match exactly, you may need to trim the new door. Accurate measurements help avoid gaps or a poor fit.
Idaho Falls Homeowners: Choosing The Right Replacement Door
Living in Idaho Falls means dealing with both cold winters and warm summers. For exterior doors, consider insulated options to save on energy. For bedroom or bathroom doors, privacy and style may be more important. At CKsidaho, we help you choose the right type, whether it’s a basic slab, a stylish panel, or a prehung unit. We also offer advice on material, finish, and design. Replacing a door in your home should match your needs, space, and budget.
Final Thoughts: Replace a Door The Right Way With Trusted Help
Replacing a door may seem like a small job, but doing it right makes a big difference. Whether it’s for a better look, a quieter room, or a smoother swing, it helps improve how your home feels. We hope this guide helps you understand every step, from removing the old door to installing a new one. If you’re unsure, CKsidaho is here to help with expert support and friendly service.
Need help with your next door replacement project? Contact CKsidaho today to schedule your consultation and make your home upgrade simple and stress-free!