Installing Floor Trim Inside Corner

One remedy for this problem is the use of corner blocks.

Installing floor trim inside corner.

But room corners sometimes vary slightly from perfect 90 degree angles and professional trim carpenters have a number of tricks they use to ensure that baseboard moldings fit perfectly. Coped joints are ideal for inside corners. Continue to cut and install trim until reaching the end of the wall. Cut the trim square if it butts into.

The technique described here modified for diyers will also work for other trim moldings such as door and window case moldings or chair rail moldings. Installing baseboard trim is a challenging endeavor that takes years of practice to become proficient. I know a few drywall finishers who don t like to bend over. Cut the inside corner of the last piece at a 45 degree angle and continue around the room.

Use a coping saw to trim out excess material behind the cut so the pieces fit snugly. For inside corners cut the piece to length at a 45 degree angle with a miter saw. The angled cuts the slope of the floor and the irregularity of the walls all work against you as you try to get those tight even corner joints.