In a professional gym the chest press bar is officially weighed on it's own at 45lbs. Is good using just the bar alone to start off. I know it's a little embarrassing with no weight on the bar but SO WHAT! Even boys have had to use the bar like that.. You should be able to do 60 to 80lbs. After you safely work you way up! Congratulations in advance on all your success in near future and excel in all your skills. Just the fact you asked this question shows INITIATIVE. Excellent job!