Wall Treatment Tips from an Interior Designer

Walls are often treated as a backdrop—painted quickly and forgotten—yet they hold enormous potential to shape how a space feels. From wallpaper and panelling to subtle paint details, wall treatments add depth, character, and intention when they’re approached thoughtfully.

The key is understanding not just what looks beautiful, but what works in practice. Before committing to a finish, there are a few designer-approved considerations that can save time, frustration, and unnecessary rework later on.

1. Smooth Walls Are Essential for Peel-and-Stick Wallpaper

Peel-and-stick wallpaper requires a smooth, drywall finish to adhere properly. Even subtle texture can prevent it from bonding evenly, leading to lifting edges or visible imperfections over time.

If peel-and-stick is part of your plan, it’s worth addressing wall preparation early. The success of the final look depends far more on the surface beneath than the pattern itself.

2. Pasted Wall Treatment Is More Forgiving

Unlike peel-and-stick, traditionally pasted wallpaper can be installed over lightly textured drywall. The adhesive allows the paper to conform more easily to the surface, making it a better option for older homes or spaces where smoothing walls isn’t practical.

This flexibility opens up design possibilities without requiring extensive wall refinishing beforehand.

3. Treat Accent Walls as a Complete Moment

When incorporating an accent wall, paint the trim and crown moulding on that wall the same colour as the feature itself. Keeping everything tonal allows the wall treatment to read as intentional rather than interrupted.

This approach creates a more cohesive, architectural look and avoids breaking up the visual impact with contrasting lines.

4. Be Strategic with Shiplap and Beadboard Height

If you’re using shiplap or beadboard, hang it at least 54 inches high so it clears outlets and switches. This small detail makes a significant difference in how polished the finished space feels.

Thoughtful placement ensures panelling enhances the room rather than drawing attention to practical elements that can disrupt the design.

Closing Thoughts

Wall treatments are one of the most effective ways to add character and depth to a home—but only when the details are considered as carefully as the aesthetic. With the right preparation and a few strategic decisions, walls can move beyond being purely functional and become a defining feature of your space.

When in doubt, focus on how each choice will age, perform, and support the overall design—not just how it looks on day one.