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Pricey Pads - Would you want these in your house? Alternating tread stairs were designed as a space saving alternative to a traditional staircase. | Facebook
Alternating-Tread Stairs (ATS) - Product Family Page
Stair of the Week: Alternating Tread Stair Design Is Also a Japanese Style Storage Unit
Alternating Tread Stair - SALA Architects
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Our Clients Love these Alternating-Tread Stair Designs - YouTube