Subscribe / Renew
|► Subscribe to our Free Weekly Newsletter|
|print email to a friend reprints add to mydjc|
February 24, 2023
Mason contractor: Keystone Masonry
Masonry supplier: Lemke Stone
The subject’s spherical wall is 16 inches thick. It is reinforced vertically with No. 9 rebar elements staged every 16 inches on center at the “equator” and hooked at both the top and bottom. The walls are then connected by horizontal reinforcing agents, which includes placement of No. 5 rebar located every 16 inches on center.
The spherical portion of the build features an inner wythe constructed of brick, while flagstone was used to construct the outer wythe. The core of the wall structure is grouted with 7,000-pound concrete grout.
Impressive engineering and structural wonder find envy with the “boss” ring stone at the top, which absorbs upward compression. The ring also offers a convenient portal for long nights of stargazing.
The sphere itself measures 16 feet in overall diameter. Its gas fireplace is cylindrical, and the seating accommodates 12 adults. Keystone Masonry President Steve Borman says the acoustics inside are quite amazing due to the space’s shape.