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Spiral Stair with Center Pole
AMS manufactures all components of our spiral stairs in shop. Most spirals are at least 270 degrees with 22.5 deg. or 30 degree treads. Treads are attached to a 12 or 16 sided center pole, using a steel slide lock. Strength is gained from the front
and back tread baluster. This spiral is made from Yellow Pine, rotates 540 deg. and has a total climb of 176" Quite a climb!
 
 
Below is a 360 deg. Oak spiral
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