This document provides step-by-step instructions for three construction projects: installing toilet floor tiles, installing a window, and building an indoor staircase. For toilet floor tiles, it outlines 14 steps for prepping the floor, installing backer board, laying thin-set, setting tiles, and grouting. For windows, it details 8 steps for installing the sill angle, centering sashes, installing the header and jambs, adjusting for gaps, and caulking. For indoor staircases, it lists 4 steps for measuring, installing skirt boards and structure bones, attaching treads to hanger boards, and screwing in treads.