We need to replace a window, but at the same time want to move the window outwards to create a seat. Outside the window is a planter and the eave protrudes about 2 feet. The planter is part of the house design built on the outside of the foundation and there is a wall extending each side of the window.
The installation of the frame for the sides and top of the window are no problem will install 2X4 or 2X6's.
Question is what to do in the planter? Presume I will need to remove the dirt and put in some sort of foundation for the window base to sit on. How deep, what construction? Some part of the planter will still remain. Do I need to provide drainage?
Current window is 52W X 62H double hung. Intend to replace.