How to Make an Arched Doorway: A Simple Guide

If you’re considering changing the ambiance of a room, building a soft archway is a great way to begin. I recently added one in my hallway, and the difference surprised me.

Just that one curved line helped the whole space feel more relaxed and easy on the eyes; you don’t need fancy tools or a big budget to do this.

If you’ve got some basic skills, a little time, and a plan to follow, you can build a smooth arch that fits right into your home.

This guide breaks everything down step by step, no kits, no stress, just a simple way to build something with your own hands. Let’s walk through it together.

Step-by-Step Guide To Make an Arched Doorway

A good plan makes the rest of the project easier. Before cutting anything, decide what shape you want and mark everything clearly.

This helps avoid mistakes and gives you a guide to follow as you build. Taking time here sets you up for a smooth and steady build later on.

What You’ll Need

Before you start, make sure you have all the tools and materials ready. Below, you’ll find two quick lists to help you stay organized and avoid extra trips to the store.

• Pencil and string to draw a smooth arch curve
• A measuring tape to keep your lines even and accurate
• Drywall saw for scoring and cutting drywall strips
• Jigsaw to cut the curved plywood sides
• Drill to fasten the frame and drywall into place
• Screwdriver or drill bit set for attaching screws easily
• Utility knife for scoring drywall
• Drywall knife for applying mudding compound
• Sandpaper or a sanding block to smooth the finished surface
• Plywood sheets for cutting the arch sides
• 2×4 wood blocks to support and strengthen the frame
• Drywall sheets to cover the arch and give it a finished look
• Screws to fasten the frame and drywall securely
• Mudding compound to smooth seams and screw holes
• Water (in spray bottle) to soften drywall for bending

1. Prep and Measure the Doorway

Remove the existing door and door jamb. Use a utility knife to cut back drywall about 1.5 inches on all sides to expose the framing. Measure the door’s width, divide by two, and add 1–2 inches to know how far down to cut for your arch height.

2. Create and Mark the Plywood Arch

Cut a rectangle from ½-inch plywood, the width of the door and a height equal to half that width. Find the center point and mark a half-circle using a screw, string, and pencil. Connect the marks smoothly for a clean curve.

3. Cut And Duplicate the Arch

Use a jigsaw to cut the arch shape from the plywood. Then trace that piece onto another sheet of plywood and cut again to make two matching arches—one for each side of the doorway.

4. Add Initial Blocking

Measure and cut 2×4 blocks based on the frame’s depth and the thickness of your arch. Screw these blocks into the existing framing and then attach the plywood arches to them securely.

5. Install Internal Blocking Between Arches

Cut thin 1-inch wide blocks to fit between the two arch pieces. Place them every ¾ inch along the curve for even drywall support. A staple or nail gun helps speed this up.

6. Cut and Attach Drywall

Score and snap drywall to size. Use the plywood arch as a guide to trim the curve. To bend drywall over the arch, score the back in 1-inch sections and gently snap along each line. Nail the pieces in place, working from top to bottom.

7. Finish with Corner Bead and Mudding

Attach flexible corner bead using a staple gun. Cover all seams and nails with joint compound. Feather the edges, let dry, sand smooth, and repeat if needed. Once finished, you’re ready to paint or decorate.

Here is the YouTube video for a better understanding:

Paint and Trim Options

You can paint the arch the same color as the wall for a clean, blended look or a different color to help it stand out.

Adding simple trim around the base of the arch or where it meets the wall gives it a more finished feel. Keep the style consistent with other rooms so it doesn’t look out of place.

Matching Other Arches in the Home

If you have other arches in your home, examine their shapes, paint, and trim. If you want the new one to match, try to keep it close in size and style.

Or, let it be a slight variation to create a subtle difference. Both choices work; it depends on your home’s layout and personal taste.

Conclusion

Now that you’ve learned how to make an arched doorway, you’ve got everything you need to start the project with confidence.

You’ve seen how to plan the shape, build the frame, and finish the surface without using a kit. Even small changes like this can make your space feel new and more put-together.

Take your time, follow each step, and don’t rush the drywall bend. That’s the key to a smooth finish.

Looking for more DIY tips? Check out our other home projects and start building something new today.

Frequently Asked Questions

1. Can I do this on a load-bearing wall?

Yes, but it’s more involved. You’ll need to keep the header intact and avoid removing any key framing. If you’re unsure, it’s best to check with a contractor before cutting.

2. What’s the cheapest way to get the look?

Use leftover drywall and scrap wood if you have it. Skip fancy trim and paint it the same color as the wall to keep costs low.

3. Do I need help, or can I do it alone?

You can do it solo, especially if you have basic tools and patience. For large openings, an extra set of hands helps with lifting and holding the frame.