Multi-floor layout problem (MFLP) can be categorized as one of the most crucial basic problems in the
real world especially in the field of plant layout design. Specially, the aim of this problem is to find the
locations of each department, storage, and elevator in the floors of a multi-floor building and without
overlapping to minimize the total material handling cost. In order to consider practical issues in theory
and presenting an applicable problem, for the first time in the published literature for MFLP, we develop a
robust mathematical model indiscrete and uncertain environment in which some parameters can be
changed in predetermined intervals. In fact, one of the most considerable factors is material flow among
departments and storages which is assumed to have uncertain values rather than fixed amounts. In this
study, we develop a Mixed Integer Programming (MIP) robust model for a new form of MFLP, we called
MFDLP where the cellar is considered to contain main storages and upper floors in which departments
will be located in predetermined locations. Moreover, there is an elevator set for transferring materials
between floors and should be located without overlapping with departments and storages. Finally, the
presented model is tested and assessed on some problems and its efficiency is shown
Multi-floor layout problem (MFLP) can be categorized as one of the most crucial basic problems in the
real world especially in the field of plant layout design. Specially, the aim of this problem is to find the
locations of each department, storage, and elevator in the floors of a multi-floor building and without
overlapping to minimize the total material handling cost. In order to consider practical issues in theory
and presenting an applicable problem, for the first time in the published literature for MFLP, we develop a
robust mathematical model indiscrete and uncertain environment in which some parameters can be
changed in predetermined intervals. In fact, one of the most considerable factors is material flow among
departments and storages which is assumed to have uncertain values rather than fixed amounts. In this
study, we develop a Mixed Integer Programming (MIP) robust model for a new form of MFLP, we called
MFDLP where the cellar is considered to contain main storages and upper floors in which departments
will be located in predetermined locations. Moreover, there is an elevator set for transferring materials
between floors and should be located without overlapping with departments and storages. Finally, the
presented model is tested and assessed on some problems and its efficiency is shown
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