I have a barbell, two dumbbells, weights and a declined/flat/inclined chair at home and would like to know if there are any exercises I could do to work on my upper back without having to buy new gear. I couldn't find anything on Gyminee's extensive list.
For $10 on amazon you can find xeritubes with a door attachment. I use it in my workouts and with clients I train. For upper back it works well for a lat pulldown, upright row, or single arm rear fly.
Also, working traps can help build a bigger upper back so dont skip on shrugs and side raises.
I'm 110% homework out, and I do my back extensively with a set of dumbbells and pullup bars. I know you've got a limited set of equipment, but here's basically what you could do. You can adjust the workouts with what you have, or go out to a garage sale and get some more bars.
For upper back, you're basically only looking at shrugs.