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Keystone 90º Inside Corner

Keystone 90º Inside Corner

Keystone 90º Inside Corner


Our Keystone Stacked Stone Inside Corner panel returns the shiplap on the inside of a 90° corner and eliminates the need to miter panels. The Keystone Stacked Stone profile offers the natural appearance of authentic dry stacked stone, but without the weight and the difficulty of installing real stone.


12" wide x 24" tall

Download Measurement Guide


This product is panelized to provide a dramatic texture and aesthetically appealing design that is ready to be easily installed from the box to the wall in minutes using deck screws and common tools. Keystone Stacked Stone panels can be used with a standard panel to form a complete system. The inside corner panel is the perfect way to cover a wall and transition your faux stone through a 90° inside corner. Our stone veneer panels are engineered to save you time during installation as well as after installation. GenStone faux stone panels have been independently tested for resistance to rain, wind, and impact, and have passed with flying colors. This ensures your faux stone veneer project will require minimal maintenance and stand the test of time.


  • Do-it-yourself friendly, no mortar no mess and virtually maintenance free
  • Step by step installation videos available on our YouTube page
  • GenStone color match caulk and paint kits available by special order
  • No need to miter panels to transition through 90° inside corners
  • Made with high-density closed cell polyurethane which are lightweight, easy to use and adds additional R-value
  • Class A rated interior available by special order
  • Each panel is hand painted with 12 coats of premium exterior paint
  • Panel is cast from real stone in 4 unique molds to eliminate repetition and provide a rugged natural look
  • Size reduces waste in installations with a great deal of cutting and fitting, installs from the box to the wall in minutes with deck screws
  • Product has been tested for weather extremes, wind and impact and 2,000-hour UV exposure
  • All GenStone panels are backed by a 25-year warranty (see warranty for details)


     Weight 2 LBS Depth 1.25"
    Finish Hand Painted Material Polyurethane
    R-Value 3.6 Template Stacked Stone
    Warranty 25 Years Class A Special Order