CSA Approved Company
GFRC, Cast Stone, Precast, GRG, FRP
Custom Build and Landscape
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keystone-08

Precast Keystone,cast stone keystones,GFRC-Keystone

  • Petra Design's Keystones can be placed above most type of windows and doors , or above any arches where a focal point is needed.

  • Keystones are used in Houses, Hotels, Restaurants, Government buildings, and Mosques.
  • Petra design provide a wide variety of natural stone colour and different finishes that suit your design , please visit our Finishes&Colors for more detail.
  • Petra design can match the colour of your surrounds
  • Our Keystones are easy to install , won't rust or crack.
  • material used; Cast stone, Glass Fiber Reinforced Concrete(GFRC), Glass Fiber reinforced polymer(FRP OR Fiberglass), Precast . Please visit our material page for more information about our material.