Graham Architectural Products Double/Single Hung Casement/ Projected Fixed Horizontal Sliding Sliding Doors Terrace Doors Acoustical Hurricane-Resistant Dual Action Blast Mitigation Security Screens Accessories   home - terrace door menu Terrace Door Series 7000 - 2 1/4" Frame   Series 7100 - 3 1/4" Frame   Series S7400 - 3 1/4" Frame   1551 Mount Rose Avenue York, Pennsylvania 17403-2909   phone: 717-849-8100      toll-free: (800) 755-6274      info@grahamwindows.com company information  -  projects  -  what's new  -  contact us  -  product literature  -  technical resources  -  home