Space Saver, Loft and Alternating Tread Staircases from Stairplan
Alternating tread stair - Designing Buildings
Geometric Mod - Alternating Tread Stairway - Top Tread Stairways
Alternating Tread Stair - SALA Architects
Pricey Pads - Would you want these in your house? Alternating tread stairs were designed as a space saving alternative to a traditional staircase. | Facebook