Installing stairs on most construction projects can be time-consuming, may create safety concerns and can disrupt the overall completion schedule. MSS was specifically developed to help commercial builders alleviate many of the issues surrounding multi-level stair erection. By fabricating and shipping complete modules, installation time is shortened and allows the contractor to focus on other tasks. Whether 2 levels or 20, narrow or wide, MSS gives contractors a speedy, quality option for stair systems on any project.