Whether the outdoor fitness square is hardened depends on the specific design and demand. Generally speaking, the venue of fitness square can choose hardening or laying non-slip ground. This can ensure that athletes have a stable foothold in sports and reduce the risk of falling and injury. In addition, the hardening site can also facilitate the installation and maintenance of facilities and ensure the cleanliness and long-term use of the site.

But there are also some fitness squares designed with elastic floor materials, such as plastic track or art floor. This kind of ground material can provide good cushioning effect and reduce the impact on joints and muscles, so it is suitable for some scenes with more jumping actions or high impact actions.

Generally speaking, whether the outdoor fitness square is hardened needs to be considered according to the actual needs, and the designer will choose it according to the characteristics of the venue, the types of expected activities, the needs of users and other factors.