PRECAST GARDEN STEPS

• Main Author: TATE J,US
• Format: Patent
• Language: English
• Published: 04.06.1974
• Subjects: BUILDING; FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS; FIXED CONSTRUCTIONS

A knock-down precast stairway, preferably for installation on sloping hillsides, made up or precast tread and unique riser elements lending themselves to ridge-and-valley interrelation near the front edge, and an improved deeper set riser contributing to an overall more stabilized installation. The unique, substantially increased overall riser height is preferably approximately twice the finished riser height. It has an integrally formed tread-supporting shelf provided approximately midway the extreme top and bottom edges of each riser element so as to establish a finished step rise of approximately 7 or 8 inches which is normally comfortable. The tread-supporting shelf preferably extends across the full lateral width of the riser element. The riser portion contributing to the added overall height thereof resides in that portion which extends substantially below the tread level, and which lower extended portion is adapted to uniquely set in a preferably relatively fine crushed stone bedding or other suitable trough below the natural terrain surface. The attendant unique installation provides a normally unyielding foundation of increased stability since the bottom edges of the respective riser elements are well below the natural sloping ground surface and are essentially permanently protected from wind and rain erosion as well as most frost upheavals. Any ground engageable portion of the top and bottom treads is also set upon a bed of finely crushed stone and/or packed coarse sand to better protect it against the aforesaid elements.