stairs (2/2)
DESCRIPTION
Stairs (2/2). March 22 nd , 2011. Stairs calculation . Slope = (2 x raise height) + tread depth. Example: (2x15) + 30 = 60 ˚. Raiser (mm). Tread (mm). Slope. Concrete stairs. Wooden stairs. Closed string stair with risers. Cut string stair with open risers. Spiral stairs. - PowerPoint PPT PresentationTRANSCRIPT
Stairs (2/2)
March 22nd, 2011
Stairs calculation
Slope = (2 x raise height) + tread depthExample:(2x15) + 30 = 60˚
MAXIMUM MINIMUM MAXIMUM MINIMUM MAXIMUM MINIMUM
190 115 355 240 700 550
Raiser (mm) Tread (mm) Slope
Concrete stairs
Wooden stairs
Cut string stair with open risersClosed string stair with risers
Spiral stairs
Steel stairs
