Maestro is the one-day stair renovation product !! This system uses a simplistic tread over tread system meaning your existing stair does not need to be taken out. These are an equivalent to an AC4 laminate product that allow for fitting on standard and extra wide or deep stairs, on an open, closed or winding stair system. Upgrade your stairs today, with Maestro. These are sold as separate tread, and riser products meaning you can customize your stair look also.