Ladders come in a range of styles to suit any number of applications, but step ladders are most common for indoor use. These fold-out, A-frame ladders tend not to surpass 10 feet and typically have ...
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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