Stairs. Most of us use them every day without thinking. Nearly every home has a set or two; from steps into the house, steps getting us into the basement, or even the staircase that takes us to the ...
Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. Alternating tread stairs are terrific for saving space; you only put one foot on a tread at ...
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