Want to trim out the ceilings where they meet the walls? Here is one way to beat the difficulty of endless trimming and fitting.
Pretty simple, isn’t it? Simply cut a small block (cube) of wood similar in size, but not smaller than the width of the trim you are installing. The block can be bigger and even chamfered on the exposed point to enhance the look.
Here is how it looks without using the corner block method:
As you can see, there will be nearly endless trimming and fitting. With the corner block, there is only the cut to length–easily done–and done!