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 ...

If you find yourself purchasing, renting or otherwise living in an older home, you might’ve seen witches stairs. Because of their funky design, they create a unique optical illusion. They can also be ...

Posts shared in early March 2021 claim that alternate-tread staircases are called “Witches Stairs,” allegedly built with the belief that “witches can’t climb up them.” This claim is false, as ...

Whether you’re trying to save space or ward off witches, these stairs will apparently do the trick. A popular misconception has social media users apparently believing that a house for sale in ...