Patent ID: 9347224
Filing Date: 2016-05-24
CPC Classification: E04B,E04F

Claim Text:
1. A construction unit comprising: a wall system having a plurality of T-shaped wall blocks arranged in a plurality of horizontal courses in Flemish bond, each of the T-shaped wall blocks having a main body portion, a side body portion and first and second intersecting corners, the main body portion having a rectangular cross section, a central portion, a first arm and a second arm extending horizontally from the central portion in opposing directions, wherein: a stair system having a plurality of precast concrete steps, each of the precast concrete steps including a generally horizontal tread portion, a riser portion connected integrally to the tread portion and a T-shaped connecting portion connected integrally to the tread portion and the riser portion, the T-shaped connecting portion having dimensions equal to the T-shaped wall blocks, each of the precast steps being installed by substituting a T-shaped wall block having the rectangular side surface outward with the T-shaped connecting portion so that the tread portion and the riser portion project perpendicularly out of the wall system.