Instructions:
Click the link to see the full-size drawing.

StoneStair-double_catalog20.dwf
StoneStair-double_catalog21.dwf
StoneStair-double_catalog22.dwf
StoneStair-double_catalog23.dwf
StoneStair-double_catalog24.dwf
StoneStair-double_catalog25.dwf
StoneStair-double_catalog26.dwf
StoneStair-double_catalog27.dwf