Installing a tile backsplash is a great way to add visual interest and protect your walls in a kitchen or bathroom. But tiling a corner backsplash can present some challenges, especially if you’re new to tiling. With the right preparation and techniques, you can achieve perfectly angled corners and stunning results. Follow this comprehensive guide on how to tile corner backsplash and transform any space.
Planning Your Corner Backsplash Tiling Project
Careful planning is key to successfully tiling a corner backsplash. Here are some important factors to consider beforehand:
Choose the Right Tile
- Ceramic, porcelain or natural stone tiles are common options. Glass or metal tiles can provide unique visual appeal.
- Smaller tiles like mosaics are better for intricate corner designs. Larger tiles are quicker to install but limit corner pattern options.
- Glossy, polished tiles showcase the backsplash but show grime easily. Matte or textured tiles hide flaws and are easier to clean.
- Match the tile material, size, and pattern with the design aesthetic you want.
Calculate How Much Tile You Need
- Measure the length and height of the backsplash area. Multiply to get the total square footage.
- For corners, measure both sides meeting at the corner and add a few extra inches to account for tile cuts.
- Factor in 10-15% more for cuts, wasted tiles, and future repairs.
Gather the Right Tools and Materials
- Tiles, tile adhesive (thinset), grout, grout sealer
- Notched trowel, mixing bucket, sponges, tile spacers
- Tile cutter, wet saw or angle grinder for cuts
- Safety gear: gloves, goggles, knee pads
Prepare the Surface
- Clean the backsplash walls thoroughly and remove any old adhesive or grout.
- Fill any holes or cracks with spackle; sand smooth.
- Apply painter’s tape around the edges for a clean finish.
How to Achieve Perfectly Angled Corner Tiles
Tiling to precise 45 or 90 degree corners requires careful tile-by-tile installation. Follow these tips for expert results:
Use Tile Spacers
- Place tile spacers between each installed tile to keep even grout lines.
- For corner edges, use L-shaped spacers to create a small gap for grout.
Cut Edge Tiles to Size
- Use a wet saw or tile cutter to trim tiles to fit corner edges exactly.
- Cut tiles on a 45 degree angle for symmetric placement. Mark lines with a square.
Apply Thinset in Sections
- Spread thinset adhesive only where you can place tiles before it dries, about 1-2 sq ft sections.
Back-Butter Corner Tiles
- Spread a layer of thinset on tile backsides before placing to maximize adhesion.
Align Tiles Precisely
- Set corner tiles first. Align their edges perfectly vertical or horizontal.
- Build out row by row from the corner edges using spacers to guide placement.
Let Thinset Cure
- Allow 24 hours for thinset mortar to cure completely before grouting.
Grouting Corner Joints for a Polished Finish
Grouting finishes the tiling job and makes corner joints look crisp. Follow these pro tips:
Choose the Right Grout
- Use unsanded grout for tiles spaced less than 1/8 inch apart. Sanded grout is better for wider joints.
- Match grout color to your tiles for a cohesive look. Contrasting grout can be striking.
Prepare the Grouting Mix
- Follow package directions to mix grout powder with water to a thick, peanut butter-like consistency.
Grout Small Sections
- Spread grout along the tile joints using a rubber grout float. Grout 1-2 sq ft sections to avoid drying.
Clean Excess Grout
- Wipe diagonally across tiles with a damp sponge to remove excess grout on tile faces. Rinse sponge frequently.
Polish Corner Joints
- Carefully grout corner joints and wipe away excess. Re-grout if needed to fill gaps.
Let Grout Dry
- Allow grout to cure completely, generally 24-72 hours. Seal grout to protect from stains.
Avoiding Common Corner Backsplash Tiling Mistakes
Tiling corners and edges can lead to some frustrating errors. Avoid these common pitfalls for flawless corner backsplashes:
Don’t Start in the Corner
It’s tempting to start tiling in the corner, but this can throw off all your angles. Always begin in the center and work outwards.
Take Time Aligning Edges
Rushing to align tiles on corner edges often leads to crooked lines. Take it slow to position tiles perfectly.
Watch Adhesive Coverage
Inadequate thinset coverage along edges causes tiles to loosen over time. Generously back-butter each corner tile.
Clean Grout Before It Dries
Letting excess grout dry on the tile face makes removal difficult. Wipe down tiles every few minutes to prevent buildup.
Avoid Grouting Gaps
Don’t use grout as a filler for wide joints or corner gaps. Removed tiles and reapply with thinner grout lines.
FAQs About Tiling Corner Backsplashes
Still have questions about tiling corner backsplashes like a pro? Here are answers to some frequently asked questions:
Should I use bullnose tiles on corner edges?
Bullnose tiles with rounded finished edges provide a seamless transition from wall to corner. They eliminate the need to cut tiles at an exact 45 degree angle.
What’s the easiest corner backsplash pattern to tile?
A basic brick pattern with straight grout lines is beginner friendly. Off-set the tiles row by row for the strongest corner junction. Avoid intricate designs.
How do I get clean straight grout lines in corners?
Use tile spacers and take your time applying grout in corners. Go back over joints to touch up gaps or uneven lines for consistent grout widths.
What mistakes cause grout cracking in corners?
Not letting thinset cure fully before grouting can lead to cracks as corners shift. Also using too little grout or a poor grout mix can result in durability issues.
Should I use paper-faced or mesh-backed mosaic tiles in corners?
Paper-faced mosaic tiles are easier to install neatly in corners. Mesh-backed mosaics take more effort to cut precisely and grout completely within the mesh.
How do I correct a corner if tiles come loose?
Carefully remove loose tiles by cutting the grout lines with a utility knife. Scape off old thinset and reapply new adhesive, then reset tiles for a lasting bond.
Transforming Your Space with Stunning Corner Backsplashes
With the right prep work and corner tiling techniques, you can tackle even the trickiest inside or outside corner backsplash designs. Take time marking reference lines, cutting edge tiles, aligning placements, and grouting for professional-looking results. The finished corner backsplash will provide a striking focal point and elegantly complete your kitchen or bathroom theme. With simple maintenance and proper sealants, your tiled corner backsplash will withstand daily wear and retain its eye-catching beauty for years to come.