Modular mezzanines take advantage of free space inside warehouses or storage facilities. Allowing operations to build up, rather than out, mezzanines are flooring systems that are built above the ground level. With modular stairways and walkways, access is provided to industrial platforms made up of lightweight, heavy-duty flooring panels. Modular mezzanines can be constructed where space is limiting, giving warehouse operators more flexibility in how they use their space. These mezzanines can be used for additional storage, walkways for warehouse workers, office space, and more.