Head Office 39 Paterson Rd, RR1, Orillia, Ontario L3V 6H2 Phone: 1.800.736.5058 Manufacturing Plant 39 Paterson Rd Oro Medonte, Ontario Hwy 11 and 15th line South 705 325-0492 Company History Founded:May 2004 Founders: Adam Boyd and George Kandimiris Affiliated Companies G.K. Precast Designs Inc 33 Markham Rd. Scarborough, Ontario M1M 2Z5 Tel 416-901-4257 Fax 416-901-4258 Key Stones / Spring Blocks / Corner Coins / Address Stones / Window Sills / Trims & Arches / Pier Caps / Copings / Signs Precast concrete keystones are placed above doors, and windows to add an interesting touch of elegance to any house. If the precast concrete keystones are combined with a window surround they actually lock the arch together. We carry 5 different styles of keystones in stock all available in 12” and 14”. We also make custom precast concrete keystones to suit all of your needs. 12" Smooth (also available in 14") Click for specs 12” Winged (available in 14”) Click for specs 12” Rock Face (available in 14”) Click for specs 12” One-Step (available in 14”) Click for specs 12” Beveled (available in 14”) Click for specs 12” Three-Step (available in 14”) Click for specs © 2006-2007 A & B Architectural Precast Ltd. All Rights Reserved.