How to trim out a Built In Bookcase

How to trim a built in bookshelf

1. Baseboard
   

   
   I used the same baseboard while building the bookcase that I have throughout my home. This way, it is a seamless transition from the bookcase to the rest of the walls. I used 3 1/2 inch flat baseboard here.

2. Crown Molding

   Once you have your bookshelf in your space, adding crown molding can make all the difference in making your bookshelf look like it’s built in. Usually there will be a space between the top of the bookshelf and your ceiling. Simply add crown molding or trim big enough to fill that gap and voila! Your bookcase looks like it’s a built in. I used a piece of 5 1/2″ inch flat baseboard for the crown molding here.

3. Shelf Trim

   Adding trim to your shelves can really make your bookcase look like it’s a built in. I used 1 inch wide trim and simply tacked it onto the bookcase shelves once it was installed, making sure to keep the top of the trim flush with the top of the shelf. I absolutely love the way this make my bookcase look like it was built in. I used 1/4 inch thick molding here.

4. Trim against the walls

   Because not every bookcase is square, and not every wall is square, you are bound to have some gaps between your bookcase and your wall. A simple piece of quarter-round trim can take care of this problem. Once your bookcase is installed, simply tack a piece of quarter-round trim in place with your brad nailer. I used 1/2 inch quarter-round here.