13. Outdoor sofa
Outdoor sofas are a must for any yard, but they can often be expensive early in the season. The outdoor sofa can quickly be built from nothing but 2x4 (and the hardware, of course) and can be treated to withstand the weather through paint or stains. A 2×4 sofa will be quite heavy, so make sure you build it near where you want it to be or have a lift to help you move it!
