Full Half-Circle Archways: Timeless Style, Built the Right Way

Nothing elevates a room like a full half-circle archway. Clean, curved, and classic, this type of arch brings softness and symmetry to a space—and makes even a basic doorway feel intentional.

At HUGE Handyman, we’ve built these full-radius arches in San Diego homes that range from Spanish-style bungalows to modern remodels. Here's what goes into doing it right, and why it’s worth the effort.

🎯 What Makes a Half-Circle Arch Different?

A full half-circle (also called a Roman arch) creates a perfect semicircle from one side of the opening to the other. Unlike low-rise or soft-curve arches, these require:

Precise geometry

A consistent radius

Careful framing and bending of materials

That smooth, symmetrical curve is the whole point—so we take the time to make it flawless.

🔨 Step-by-Step: How We Build a Perfect Half-Circle Archway

1. Marking the Radius

We start by measuring the width of the opening and determining the exact center point. From there, we use:

A custom compass or string method to mark out a true half-circle

Chalk lines and templates to ensure both sides are identical

Getting this layout right is everything. If it’s even slightly off, the final curve will look uneven or wobbly.

2. Framing the Arch Curve

We cut plywood arch templates for each side of the opening, each shaped to match the exact radius. Then we:

Attach them to the wall studs or framing

Add wood blocks (ribs) between the sides to give the arch depth and hold its shape

Reinforce everything to handle the weight of drywall and corner bead

This part is time-consuming—but it creates the rock-solid foundation the curve needs.

3. Installing the Curved Drywall

Next comes the tricky part: wrapping the arch in drywall.

We use:

Flexible drywall or carefully scored standard drywall to bend along the curve

Plenty of screws to lock it in tight without cracking

A flexible vinyl corner bead that holds the shape while giving a clean edge

We spend extra time here to make sure the curve is smooth, the seams are tight, and the transition is seamless.

4. Mudding, Sanding, and Finishing

We apply several layers of joint compound, sanding between coats to blend everything into one consistent radius. Then we finish with:

Primer

Texture (if needed)

A clean coat of paint that ties it into the rest of the room

The final result is a perfectly curved, fully finished half-circle opening that looks like it’s always been part of the home.

💡 Why Homeowners Love This Arch Style

Full half-circle archways:

Bring historic charm to otherwise plain spaces

Work beautifully in entryways, hallways, and niche openings

Fit a variety of styles—Spanish, Mediterranean, Southwestern, and even clean modern

Add subtle drama without needing major construction

They’re one of those details people don’t always think of—but always notice.

🔧 Built to Last, Not Just Look Good

This type of arch isn’t something we rush or prefab. It’s custom-cut, hands-on, and detail-driven. We build it with framing that holds up over time and finishes that blend perfectly with your existing space.

Whether you're opening up a wall, remodeling a hallway, or just want a design moment that adds value and style—a full half-circle archway is a timeless choice.

Let HUGE Handyman bring it to life.