We slice them on pizza, toss them in salad and sauté them in stirfrys, but the humble mushroom continues its surprising debut as a building material.

Often called toadstools, they now provide seats for people in Canada after researchers there built six public benches using honeycomb-shaped bricks made from a blend of oyster mushroom spores and sawdust. The researchers from the University of British Columbia (UBC) in Vancouver developed the bricks in their quest for sustainable…