How to Handle Panel Seams for Tall Walls

March 12, 2025 4 min read

If your walls are taller than our maximum panel height of 93", you have multiple options for achieving a seamless, intentional design. Rather than letting seams disrupt your aesthetic, you can strategically incorporate them into your design for a flawless finish. Below, we explore three different solutions, their benefits, and key considerations for installation.

1. Shadow Gap – A Clean, Sophisticated Break

A shadow gap is a small, intentional space between panels that creates a clean and modern design feature. Instead of trying to disguise the seam, this method embraces it, making it look intentional rather than like an installation challenge. This technique is frequently used in high-end architectural interiors and commercial spaces where precision detailing is a priority.

Why Choose a Shadow Gap?

✔ Sophisticated & intentional – Looks clean and modern.

✔ Flexible design – Can be placed halfway up the wall or split into multiple sections (one near the top, one near the bottom).

✔ No pattern misalignment concerns – Since the panels don’t touch, variations in pattern or grain aren’t an issue.

✔ Easy to maintain – Gaps prevent visual distractions caused by imperfect panel alignments over time.

Considerations:

Requires precision in spacing and alignment to look professional.
Works best in modern and contemporary interiors.
Wall preparation is crucial – Uneven walls may impact the consistency of the gap.

Installation Tip: Use spacers to ensure even gaps during installation, and consider painting the wall behind the gap a contrasting or matching color to enhance the visual effect.

2. Stack Seam – A Continuous Look (If Done Well)

A stack seam means butting the panels together to extend the height. While this maintains the continuous fluted pattern, it comes with some installation challenges. This option is often chosen when designers want to create a floor-to-ceiling effect without interruption, but precision is key to achieving a seamless appearance.

Why Choose a Stack Seam?

✔ Visually continuous in photos and from a distance.

✔ Uninterrupted look – Works well if precise cuts and alignment are maintained.

✔ Minimalistic appeal – Works for both commercial and residential spaces seeking a smooth, uninterrupted flow.

Considerations:

Pattern & grain variation – Natural shifts in pattern or grain can make seams noticeable.
Installation precision is key – If cuts aren’t perfectly tight, the seam can become obvious.
May not look as clean in person – While it photographs well, seams can stand out depending on lighting and viewing angles.
Environmental factors – Changes in humidity and temperature can cause material expansion and slight shifting over time.

Installation Tip: If using a stack seam, dry-fit panels before installation to ensure the pattern aligns as closely as possible. A high-quality adhesive or secure mounting method such as furring strips will help reduce the appearance of seams over time.

3. Trim Transition – A Planned & Polished Look

A trim transition uses a trim piece to break up the seam, making it feel like a deliberate design choice rather than a necessary fix. This method adds a touch of structure and can enhance the overall wall composition by introducing another layer of design.

Why Choose a Trim Transition?

✔ Adds a design element – Helps integrate the seam into the wall’s aesthetic.

✔ Easier to align visually – Since it separates the panels, grain and pattern variations are less noticeable.

✔ Great alternative to shadow gaps if you want a more classic or decorative finish.

✔ Protects panel edges – Helps prevent chipping or visible wear over time.

✔ Works well in both modern and traditional interiors – Depending on the trim style chosen.

Considerations:

May not be as modern as the shadow gap but still provides a clean and intentional break.
Choice of trim is important – We recommend a flat trim piece or a rounded trim piece depending on the overall look you are going for.
Color selection matters – Using a trim that blends with the panel color helps maintain subtlety, while a contrasting trim can make a bold statement.

Installation Tip: Choose a trim width that complements the fluted pattern for a balanced look. Secure the trim firmly in place with construction adhesive and finishing nails for a seamless, durable installation.

Which Option is Right for You?

Each approach has its strengths, and the best choice depends on your design style, personal preference, and installation needs.

If you want a modern and intentional break, go with a shadow gap.
If you prefer a continuous panel look, a stack seam might work—just be mindful of installation precision.
If you want to break up the seam in a clean and planned way, a trim transition is a great option.

At Walston Architectural Products, we offer expert guidance and high-quality fluted wall panels to help you achieve your desired look. Whether you’re designing a contemporary office, a stylish residential space, or a high-end commercial project, we have the solutions to make your vision a reality.

For installation guidance, product recommendations, or custom solutions, contact us today.