“…Several common problems often occured for designing layout for small factory, i.e. difficulties in locating the facilities (e.g., machines, departments) in a plant (Chikwendu & Okechukwu, 2016;Drira, Pierreval, & Hajri-Gabouj, 2007) ineffective material flows (Sharma, Singh, & Singhal, 2013) unflexible layout as difficult and slow in changing the production type (De Carlo, Arleo, Borgia, & Tucci, 2013) critical and complex task due to the increasing demands (Azise, Simatupang, Wibisono, & Basri, 2013;Benabes, Poirson, & Bennis, 2013) and hard modules of unequal dimensions in open space (Tasadduq, Imam, & Ahmad, 2015).…”