You need to figure out just what you are looking for when you are designing a home gym. You would have to figure out the size of the room that you are going to put the gym equipment into plus the amount of equipment that you are going to have in the room. You could end up with too much equipment for the room size or may think that there is too much dead space in the room around the equipment in there.
The room design could end up with bars on the wall to help with stretching out or even the bars to pull on for the upper body fitness. Yet if you have to design a home gym in the bedroom you could figure on having the equipment in a corner of the room so that it is out of the way and no one would end up tripping over it. That would even go for the gym equipment that you could tuck away under the bed of in the closet.
Did you realize that some would go as far as painting the room that the equipment is going to be in with real buff people or putting barbells on the wall so that they will be inspired every time that they would walk in to get to work and become more fit and healthy. A lot of people may think that this design is going a little too far for their pacific taste and would like to walk into that situation.
But really you would think that all you need is the proper equipment for the job and to make sure that you are on solid but comfortable foundation so that you would not do any unwanted damage to you joints and bones. Plus you would need to make sure that you equipment is not too close together so that you are able to get the proper use of any equipment that you are trying to use from being squished in the room.
Another possible solution is that you need to make the room a cozy color so that you would not feel pressured or stressed just being in there.