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On average, the cost to install or replace bifold doors ranges from $100 to $300, making them one of the most inexpensive interior door options. The final price depends on several factors, including the door's material and design, with hollow core and solid core doors being on the lower end of the cost spectrum. A local door installer will likely charge between $40 and $90 per hour. While a skilled DIYer may be able to install bifold doors, as most come with the necessary hardware, the doors can be heavy, and improper installation can lead to misalignment issues.

To choose the best door, start by pinpointing its most important job in your home, then choose the material and style based on that function. Simply put, there’s a world of difference between what an interior bedroom door and driveway-facing entryway door do for your home. Thinking about your door's purpose first, then its look and style, will help you make the right choice and stay on budget.

This hack required some hand strength. First, bend the fork's tines. Next, slip the pointed ends into the door latch and close the door. Open the door to remove the fork and break off the fork's handle. Reinsert the fork's head into the door latch and close the door. Finally, slide the fork's handle through the tines, creating a horizontal barrier that prevents the door from opening inward.

A slab door is a standalone door without a frame or hardware. A prehung door is a complete set that includes the door, frame, hinges, and sometimes the doorknob and lockset.

In most cases, a prehung door is the better and easier option to install, especially for DIY projects or exterior applications, as they often come pre-weatherproofed. They require fewer tools and less experience to install properly. Although prehung doors are heavier and have a higher upfront cost, the investment is often worthwhile for a complete upgrade that includes a new frame.

A slab door may be a better choice if you are on a tight budget, have a custom-sized wall opening, or only need to replace the door while keeping the existing frame. While the initial cost is lower, you will need to purchase all the hardware separately and do more DIY work to hang it, which may not result in significant time or money savings.