In our quest to design an impeccable outdoor space that combines functionality with aesthetic appeal, one perhaps unlikely hero emerges from the fray: the humble square market umbrella. You may be wondering: What's a square market umbrella? How could it possibly influence the appeal and usability of my deck, yard, or patio design? Is it even a necessary addition to my outdoor space?   A square market umbrella, as it happens, is an exceptional tool in outdoor design. It's the