|We manufacture our storm cellars here at
H&H Septic. Storm Cellars are 6 1/2 ' X 8
1/2' in diameter. Inside height is 6' 3".
They are a pre-cast concrete structure, and
have stairs with one hand rail. There are
two vents on top of the cellar for
ventilation. The metal door has hydraulic
spring that opens for more ease getting
into the cellar.