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The Schluter Kerdi-Board SC is a pre-formed shower curb made of bonded foam, cut to a fixed height and profile so you skip building and squaring a wood dam. It bonds to the substrate and ties into the surrounding Kerdi waterproofing assembly, then gets tiled on top and faces. It suits tile setters and remodelers who want a fast, integrated threshold rather than stacked lumber. Against lumber-and-cement-board curbs it saves framing time and keeps the shower in one system, but it is a fixed 4-1/2 inch height and needs Kerdi banding and thinset to seal seams.
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Owners and tile pros describe the Kerdi-Board curb as a fast, clean way to build a shower threshold, praising how it replaces a framed wood dam and bonds into the waterproofing. Complaints center on the fixed height and the care needed to band seams and protect the foam before tile goes on.
Kerdi-Board SC is a ready-made shower curb for tiled showers. It installs without framing or stacking lumber. The bonded foam core comes pre-formed to height and profile.
Set the curb at the threshold and bond it to the substrate. Band the seams and base into the surrounding Kerdi assembly. Then tile the top and faces to match the shower.
At 60 inches long, it can serve a wider shower entry or be cut to fit. Using it skips building and squaring a wood dam and keeps the threshold in one integrated system.
