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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This question can be basic and you may know the answer, but it's always good to remember some elementary calculations that help us to streamline the design process. Check the effective formula ...

Which stair treads are best? Stairs, whether indoors or outdoors, can be dangerous for some people and even animals to use. Stair treads aim to remove much of the risks by providing a high-traction ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? POP Projects is a collection of new and classic projects from more than a century of ...