Speaking of furniture and decor, I recommend choosing modern and minimalist style furniture to create a comfortable and refreshing atmosphere. For the gym equipment, I'd suggest black or dark grey to contrast with the wooden floors, thus highlighting the professional ambiance of the fitness center.
For furniture, I'd recommend clean and functional designs for gym equipment and apparatus shelves to maintain a tidy space while providing convenient storage and usability. In addition, comfortable and lightweight furniture for the rest area and soft sofas can offer relaxation for clients during and after their workouts.
In terms of decor, simple art pieces hung on the wall can enhance the cultural aspect of the gym, along with some green plants like bamboo or unique potted plants to add vibrancy and liveliness to the space.
Regarding color schemes, I suggest opting for minimal and bright colors like grey, white, and light wood, with touches of fresh green to create a more inviting and pleasant environment.
As for brands or products, I would recommend looking into reputable fitness equipment brands such as Technogym, Life Fitness, or Precor for gym equipment, and for furniture and decor, considering modern design brands like Muuto, HAY, or Scandinavian Designs can be helpful.