Contributed by Dick
The great thing about boxes under eaves is that they are largely sheltered from the weather. So plywood is a suitable material and it is ideally suited to those with a DIY bent. The generic design proposed here looks neat under eaves. The carpentry is not that challenging. It doesn't cover all eaves situations, but it is ideal for broad flat horizontal or gently sloping eaves. (slope less than 30° say).
Ideally one needs a parametric CAD system for these sorts of things, but they are expensive, so, we have encapsulated the design in a spreadsheet which calculates all of the necessary dimensions from a few parameters provided by the user.
|Designs resulting from 3 parameter settings|
|Dimensioned design drawing|