Shoulder width mainly depends on the congenital clavicle width of human beings. I am 1.8 meters tall, but my shoulders are narrow. Increasing shoulder width can only achieve visual width by increasing the size of deltoid muscle. I have widened my shoulders through fitness training, so I can only go to the gym for scientific training. Pull-ups and push-ups are one for practicing the back and the other for practicing the chest, which is not helpful for widening the shoulders.

If you don't want to go to the gym, you can practice at home, but you don't want to be out of proportion because your shoulder muscles are wide and other muscles are small. First, you have to have a pair of dumbbells. The main movements are side lift, shoulder push, leaning down and side lift, premise and upright pull-ups, but these movements are not easy to do. It is recommended to go to the gym. After scientific training, you will get the body shape you want.