Moved into an old house with really nice beams but they are worn, have filler in some places, different shades in color, and the tone is waaaay too much on the red side (not really visible in the pictures) ... We want to somehow stain them to achieve a lighter and cooler brown tone.
The beams are rough and not even on the surface. How to sand them? We don't want to ruin too much of the appearance (except for the tone) ...