Can Wallpaper Go Over Shiplap? The Ultimate Guide

Installing new wall décor over existing shiplap is one of the most frequent questions we receive from homeowners looking to refresh a room without the commitment of full demolition. The short answer is a definitive yes; wallpaper can absolutely be applied over shiplap, but success depends entirely on preparation and the specific materials you select.

Assessing Your Existing Shiplap

Before you purchase a single roll of paper, you must evaluate the condition of your shiplap. If the boards are securely fastened, clean, dry, and relatively smooth, they provide a stable canvas. However, if the wood is loose, squeaks, or has gaps between the boards, these issues will telegraph through the wallpaper, resulting in a bumpy finish that will likely fail prematurely.

Smoothness and Gap Management

The defining characteristic of shiplap is its tongue-and-groove profile. While this creates a beautiful shadow line, it creates ridges on the wall surface. Heavy, non-woven wallpapers are better suited to this task because they can bridge these gaps more effectively than thin papers. If you choose a delicate silk or standard paper, the texture of the grooves will be visible, which may be a stylistic choice you either love or loathe.

The Critical Role of Preparation

Skipping the prep phase is the primary reason wallpaper installations fail over shiplap. You cannot simply paste and hang; the surface requires specific treatment to ensure adhesion and longevity.

• Cleaning: Dust and cobwebs must be removed thoroughly. Any dirt acting as a barrier will prevent the adhesive from bonding to the wood.
• Sanding: Lightly sanding the surface helps to reduce the gloss on painted boards and provides a slightly roughened texture for the wallpaper to grip.
• Filling Gaps: If the gaps between boards are deep, using a lightweight spackle or color-matched wood filler can create a more uniform surface, minimizing the "shadow lines" after installation.

Adhesive Selection: Glue vs. Paste

You have two primary options for adhering wallpaper to shiplap: traditional cellulose paste or modern pre-pasted rolls with proprietary adhesives. For porous wood like shiplap, a high-quality cellulose-based wallpaper paste is often the superior choice. It dries clear and remains breathable, which is vital for wood that might expand or contract with humidity changes.

Ensure the adhesive is specifically rated for "non-woven" or "vinyl" wallpapers if you choose a heavy decorative paper. The weight of the paper demands a strong bond, and a weak adhesive will cause the paper to sag or detach at the seams over time.

Addressing Texture and Depth

Applying wallpaper over shiplap changes the dimension of the wall. If you hang the paper tightly, you will lose the shadow line that gives shiplap its character. To preserve the depth and visual interest, consider allowing the paper to sit slightly proud of the boards or ensuring the pattern aligns perfectly with the edges.

Alternatively, if you want a flat, featureless wall, you might be better off removing the shiplap or covering it with beadboard first. However, if you love the texture, embrace it; the tactile quality of the wood beneath a smooth or lightly textured paper can add significant richness to the room.

Material Recommendations

Not all wallpaper is created equal when tackling a surface like shiplap. Avoid thin paper-backed vinyls, as they offer little forgiveness for imperfections. Instead, look for materials with a bit of body.

Color and Lighting Considerations

Shiplap is often white or painted a light neutral. When you add wallpaper on top, the reflectivity of the wood will lighten the perceived color of the paper. To achieve a true visual representation of your chosen hue, test the wallpaper sample directly on the shiplap under the room's lighting conditions before committing to a full roll.

If you darken the walls significantly, the white gaps of the shiplap will act like a graphic pattern, creating a stark contrast. This can be a stunning design element if intentional, but it requires careful planning to ensure it complements your overall aesthetic rather than looking messy.