We present the main features of the ultrashort, high intensity laser installation at the ILIL Laboratory including laser, beam transport and target area specifications. The Laboratory was designed to host laser-target interaction experiments at > 220 TW peak power, in flexible focusing configurations, with ultrarelativistic intensity on target. Specifications have been established via dedicated optical diagnostic assemblies and commissioning interaction experiments. Here we give a summary of laser specifications available to users, including spatial, spectral and temporal contrast features. The layout of the experimental target areas is presented, with attention to available configurations of laser focusing geometries and diagnostics. We finally discuss radiation protection measures and mechanical stability of the laser focal spot on target.