The SUSY discovery potential of CMS and ATLAS detectors at the LHC is evaluated in different regions of the mSUGRA parameter space. In inclusive searches the parameters can be constrained by considering the event topology. The observation of kinematic end points at large statistics makes possible to infer the SUSY mass spectrum. The LHC SUSY discovery region extents up to the mass scale of 2 TeV at L_{int}> 10fb^{-1} and is limited by uncertainties in the Standard Model backgrounds