Yes, you absolutely can. Street benches designed to seat three or four people are widely available from commercial outdoor furniture suppliers and municipal equipment manufacturers. Typically, a bench that can comfortably seat three adults will be around 72 to 84 inches (183 to 213 cm) long. For four people to sit side by side, you’ll want a length closer to 96 to 108 inches (244 to 274 cm).
These larger benches are often called “three-seat” or “four-seat” park benches, and they come in a variety of materials. Cast iron and steel frames with wooden slats are a classic choice for durability and comfort. Recycled plastic options are also popular because they resist weather, rot, and insects, making them ideal for public spaces.
If you’re looking for a residential option, many extended garden benches are also available. Look for models with an extra-wide seat depth (around 20 to 24 inches) to keep everyone comfortable without feeling cramped. For public or commercial use, I’d recommend checking suppliers like DuMor, Pilot Rock, or Keystone Ridge Designs, which offer customizable lengths.
One more tip: if you want something truly accommodating for four people, consider benches with armrests placed at the ends only—this gives more usable seating space in the middle. Or you can choose a backless bench, which allows people to sit facing either direction and can feel roomier.
So yes—whether you’re furnishing a park, a downtown sidewalk, or your own front porch, you can definitely find a street bench long enough for three or four people to sit together comfortably, safely, and stylishly.