Concrete Countertop Size Limitations and Seams
Each concrete countertop contractor has optimum and maximum countertop sizes they work with.
Sizes they work with depend on countertop structural issues, shipping, and handling (a ten square foot countertop weighs nearly 200 pounds.)
Soupcan Inc., a countertop contractor, uses 10 long or 20 square feet in area as their maximum size for standard pricing. Larger sizes will require seams.
Depending on the overall countertop dimension, joints are often incorporated to accommodate handling. Seams can become a design element. CONCRETEWORKS STUDIO fills joints with a color matching latex. Soupcan Inc., uses a clear, 100% silicon sealer.
Seams in concrete countertops will look similar to the seams in marble or granite- you can see them, but they don't present any design or aesthetic problem.
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