Modular bathroom structure

A modular shower seat kit for connecting to a wall structure of a shower, comprising:

• a mounting base component connected to the wall structure, the mounting base component defined as a vertical base plate comprising a plurality of fastener holes and a plurality of vertical slots arranged horizontally and vertically on a left side and a right side of the vertical base plate;
• wherein the plurality of fastener holes allow adjustment of the mounting of the vertical base plate to the wall structure via fasteners and wall trims, and the plurality of vertical slots allowing adjustment of a pair of vertical bases in a horizontal direction to adjust the size of a support component, wherein each vertical base is orthogonally fixed to the vertical base plate by fitting a set of vertically opposite brackets into the vertically opposite slots of the vertical base plate;
• and
• the support component, wherein the support component is fixed over the pair of vertical bases.