Modular Stair Sets Modular step system with 7″ stair rise, 11″ stair run and 48″ width. Stair can be easily configured to stage heights up to 56″. Use the form below to request additional information about this product. Name* First Last Company Name*Geographic Location*US & CanadaLatin AmericaEurope & Middle EastAsia & AustralliaEmail* Phone*Message* This iframe contains the logic required to handle Ajax powered Gravity Forms.