Firstly, is there a professional name for this? step down? shower hob? my plan is to lift the rest of the area with screed, which will allow this ditch to form. https://forum.homeone.com.au/u/75931_1526483972.jpg

Hi All, Parents have a small and old bathroom. I have the following options 1. Pay someone to do whole thing. 2. Buy stuff at Bunnings and install it myself. minimal pluming or electric work. 3. Do the ties myself and get cabinet maker for the rest. Considering some of the above. I have listed the f...