Skin grafting is a surgical procedure to treat extensive burn injuries, and the design of skin grafts plays an essential role in burn surgery. In skin grafting, parallel incisions are projected onto a small section of healthy skin that has been removed for maximum expansions and coverage of a larger burn area. Currently, in the traditional method, skin graft expansions are insufficient to cover large burn areas. This work studied the hierarchy of alternating slit (AS) shaped and rotating rectangle (RR) shaped auxetic skin graft patterns. The 3D models of hierarchical structures were designed and developed using SolidWorks and additive manufacturing methods, respectively. These moulds were used to fabricate the hierarchical skin graft simulants. Statistical analysis was performed to calculate the significance among the groups. These hierarchical skin graft simulants were tested uniaxially and calculated the effective Poisson's ratio, meshing ratio, and induced stress up to 300% strain. From the results, all the auxetic skin graft simulants showed very high expansion. The first-order AS-shaped skin graft simulant showed the maximum expansion among all the hierarchical models. Till now, skin grafts have not achieved such high expansion experimentally. This research will be useful to the doctors to improve burn surgery outcomes and guide the manufacturers to develop new mesher with higher expansion potential.