What Is a Seam?
A seam is where two separate pieces of stone or quartz material are joined together to create a continuous surface. Most countertop slabs only come in certain sizes, so if your design requires a larger span or complex shape, seams are often unavoidable. Here at Bedrock Countertops, we try our best to stick to the standard seam size which should be 1/8th of an inch wide.

Why Seam Placement Matters
1. Aesthetics
A poorly placed seam can be an eyesore. The goal is to place seams in areas where they will be the least noticeable. This could mean aligning seams with the flow of the design or placing them in less visually prominent areas.
2. Structural Integrity
Seams should be placed in locations that provide support and minimize stress on the material. For example, it’s best to avoid seams directly over dishwashers or unsupported cabinetry.
3. Material Matching
If your countertop has veining or patterns—especially with natural stone like granite or marble—seam placement becomes even more important. A skilled fabricator will try to match veining and color as closely as possible, so the seam blends in natural.

Factors That Influence Seam Placement
- Size of the Slab: If your countertop is longer than the slab itself, a seam will be required. Most standard slabs range between 100-130 inches in length and 55-70 inches in depth, it just depends on the supplier.
- Access to the Space: Tight hallways, narrow doorways, and staircases can limit the size of material that can be delivered in one piece.
- Cabinet Layout: Seams are best placed over cabinet frames or other stable structures to ensure long-term durability.
- Sink and Cooktop Cutouts: Placing a seam too close to these cutouts can weaken the surrounding material.

Best Practices for Seam Placement
- Keep Seams Away from High Traffic Areas: Try to avoid placing seams in the middle of a kitchen island or main prep area where they’ll draw the eye or be subject to constant wear. If they are placed their due to slab size vs island size our team ensures they best look.
- Use Color-Matching Adhesive: A good installer will use adhesive that matches the countertop material for a cleaner look.
- Minimize the Number of Seams: Less is more! Fewer seams mean less chance of noticeable transitions or long-term wear issues.
- Prioritize Function Over Form When Necessary: While aesthetics matter, structural soundness and long-term durability should always come first.
What to Expect During Your Project
At Bedrock Countertops, we carefully review each project layout to determine the best possible seam placement. Our goal is to make seams as discreet, strong, and visually seamless as possible. We also communicate seam location with you before fabrication, so you’re informed and comfortable with the final design.
Final Thoughts
Seam placement may seem like a small detail, but it plays a big role in your countertop’s performance and appearance. By working with an experienced team and understanding the basics, you can ensure your countertops are not only stunning but also built to last.
Have questions about seam placement or countertop design? Contact us today—we’re here to help guide you every step of the way.