4" X 4" X 61" Ready-to-Tile HardCurb® Shower Curb




Standard Orders Placed by 12PM EST During Normal Business Hours Will Ship in 1 - 3 Business Days*

Ready-to-Tile Shower Curb

Say goodbye to leaks and tile failure associated with wood-built shower curbs. The KBRS HardCurb® is uniquely engineered to prevent these issues, featuring a self-sealing anchoring layer that automatically seals around the screws when penetrated and securely holds the screws in place.

The HardCurb® is constructed with a UL® Certified geofoam core and topped with a solid 1/2" PVCore™ self-sealing anchoring cap, making it extremely durable and ideal for heavy glass shower assemblies. Encapsulated in ShowerSeal® seamless waterproofing, this shower curb is tile-ready and easy to install.

The 4" X 4" KBRS HardCurb® is available in a 61" standard length and can be cut-to-fit in the field if needed.


  • Interior or Exterior
  • Commercial and Residential

 Suitable Substrates:

  • Any substrate that you would normally build a tile shower on that is level: concrete, approved plywood surface, etc.
  • Deflection of substrate not to exceed 1/360th of the span 1/2 inch (12 mm) in 15 feet (4.6 m) in accordance with ANSI A108.01-2.3
  • Allow for live and impact load as well as dead load weight of pan, tile and setting beds