One of the most important factors that determines how much weight a playpen can hold is the quality of materials that the playpen is made of. Playpens made of tough and strong fabrics usually last for longer compared to those made of weak fabric. Before you buy a playpen, it is important to check the quality of the materials that it is made of. If the material is strong, then will accommodate more weight. On the other hand, if the fabric is weak, then it cannot hold a lot of weight.