Accessory for the Enduro spiral staircase model K05003 - up to three additional risers can be added to reach a maximum height of 148-1/16 in.
Exterior installation
Additional riser kit consists of one 12-Gauge hot-dipped galvanized steel component， four balusters， connectors and stainless steel hardware
Each riser will add 26.40 degrees to the rotation of the stair
Rise adjustable from 8-9/32 in. to 9-1/4 in.
May be used with multiple additional risers (up to a total of 3 - not included) for a maximum height of up to 12 ft. 4 in.
Includes tread， 4 balusters and hardware
Use only with model K05003
Important: consult your local building inspector for specifics regarding compliance with the local building codes
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