as above.
I know rubberised iron cost around $50 for 10 kg, very expensive. Is there anyway I can get it for cheaper? Are there plates for 15 kg?
there are plates from 1.25kg to 45kg.Plates above 20kg are generally harder to find.
Rubber plates will cost more-
1)They are kinder to the ground
2)They dont rust and have better durability
3)Hexagon rubber plates wont roll on the ground and remain at where you placed it.However, you wont be able to kick the barbell towards you and have to use strength to pull it instead.