Question: must have equipment in a gym?
Answer: Training bench. A basic but multi-purpose training bench is a must-have in your gym. ... 
Dumbbell set. Also an important necessity for beginners, young athletes and seniors. ... 
Treadmill. ... 
Stationary bicycle. ... 
Barbell Set. ... 
Rowing machine. ... 
Low-impact treadmills. ... 
Ellipticals.