Tools for customizing modular shower components

A method of preparing and installing shower panels for a modular shower, comprising:

• selecting prefabricated components including a shower base, a back shower panel, a first side shower panel, and a second side shower panel, wherein:
• the shower base includes a first top edge, a second top edge, a third top edge, and a drain hole;
• the back shower panel includes a left vertical edge, a right vertical edge, a top edge, and a bottom edge;
• the first side shower panel includes a left vertical edge, a right vertical edge, a top edge, and a bottom edge;
• and
• the second side shower panel includes a left vertical edge, a right vertical edge, a top edge, and a bottom edge;
• measuring a first distance from the drain hole to the first top edge, measuring a second distance from the drain hole to the second top edge, and measuring a third distance from the drain hole to the third top edge;
• placing a first indicator on the first side shower panel proximate to the bottom edge of the first side shower panel corresponding with the second distance;
• placing a second indicator on the back shower panel proximate to the bottom edge of the back shower panel that corresponds with the first distance and the third distance;
• placing a third indicator on the second side shower panel proximate to the bottom edge of the second side shower panel corresponding with the second distance;
• aligning one of a plurality of contour gauge tools with the first indicator and trimming the bottom edge of the first side shower panel based on the contour gauge tool;
• aligning one of the plurality of contour gauge tools with the second indicator and trimming the bottom edge of the back shower panel based on the contour gauge tool;
• and
• aligning one of the plurality of contour gauge tools with the third indicator and trimming the bottom edge of the second side shower panel based on the contour gauge tool.