That depends. For small to mid-sized bathroom countertops, a seam may not be necessary to achieve your desired outcome. However, for large bathroom countertops, there may need to be a seam to achieve the look, size, and style you want. Custom bathroom countertop fabricators like King’s Granite & Marble will discuss your options with you. If a seam is necessary, the team will fabricate your counters in such a way that will best camouflage any seams.