Often concrete benchtops can be designed without seams. Seams may be located around sinks and cooktops, or wherever required for structural reasons. Or, seams may be necessary due to the logistics of getting the slabs into the house if stairs or corners are involved. The Concrete Corporation will work with you to design seam placement that is both structurally sound and aesthetically pleasing. Seams are typically 3mm – 5mm wide, similar to tile grout lines. However, it is important to realize that concrete benchtops are handmade and hand processed; they are not machine cut, so tolerances for seams are more generous than with Marble or granite. Seam appearance is minimized by using clear or grey silicone.