I would like to have a 3D model of a fitness jump box that I could take to a metal fabricator for a quote. The box will be made out of a lightweight metal that can support 400lbs. The intent of the box is to use for fitness classes where people will jump from the floor onto the top of the box and back down. The base of the box should be larger than the top surface of the box. Therefore, the sides are angled inward, less than 90 degrees. In addition, the height of the box will be between 24-36" high, the length of the box will be about 36" and it will be about 24-30 inches wide. I would like to be able to flip it onto it's top so that it can be pulled along the ground and moved around. Ideally there would be recessed wheels on one end of the top of the box for this function. When it is flipped over on it's top, the bottom (now facing up) would be removable so that things could be stored inside.
Attached is a similar design made out of wood.
The further intent of the box would be to store fitness equipment in when they are not in use. Then be able to slide a metal cover back on the box to hide the equipment.