If you live in a city that gets very hot, you've probably asked this exact question. The short answer is yes, the plastic on an outdoor trash bin can absolutely warp in the sun. Most standard outdoor bins are made from polyethylene or polypropylene. While durable, these plastics have a melting point, and intense, direct sunlight can heat them up enough to make them soft and pliable. When the plastic softens, it can no longer hold its rigid shape, especially under the weight of the trash inside. This leads to sagging, bulging, or a permanently warped structure.
So, what can you do? First, look for bins labeled as "UV-resistant," as they are specifically treated to handle sun exposure better. Placing your bin in a shaded spot, even if it's just partial shade for part of the day, can make a huge difference. A lighter-colored bin will also reflect more sunlight instead of absorbing it like a dark color would. If your bin is already warped, it's unlikely to return to its original shape. For extremely hot climates, you might even consider a metal bin, though it can get hot to the touch. With a little care, you can extend the life of your outdoor trash bin, even under the scorching summer sun.