I need help! Is there an easy way to figure out how to lay out baseboard trim that returns up under the back side of oak board running along the top of the degree wall. I know I can cut and try and cut and try til I work it out, but I was hoping someone out there had a better idea. To clarify I'm installing a oak degree railing along a stairs and I want to run the baseboard up under the bottom side of the bottom cap oak board instead of just some sort of quarter round. Where the problem is when I 45 the mitre from the floor up the wall and then try to cut the angle that runs the angled protion of the wall is where the problem is. The angle measures 50/130 but when you cut and install, it doesn't work. I always end up having three or four pieces on that angle cut to fit to make it work. I'd like a better way. Thanks.