Tip: Take the time to double-check all measurements. Remember to measure twice so you only have to cut once.Take the piece that's 12 ft. x 1 in. x 12 in. and rip cut it so it's only 11 in. wide.
Lay Out & Mark the Pieces
Lay out the pieces as you would to assemble them. Choose the sides of the boards that will face out from the bookshelf. Use a pencil to lightly mark the interior faces. The "A" or faced side of the plywood should be visible from the front of the bookshelf.
Drill Holes on the Side Boards
Square the edge of pegboard on one of the sides, 12 in. from the bottom on the inside face of the side board. Use the pegboard as a template to drill holes on the side boards to receive shelf pins, with the holes being between 1 in. to 2 1/2 in. from each edge and stopping about 10 in. from the top. Drill matching holes on the other side board.
Rout Rabbets on the Top & Sides
Route a 1/4 in. x 1/2 in. rabbet in the rear of each side and the top. Rout the top so the rabbet stops 1/4 in. from each end of the board. When the bookshelf is assembled, the rabbet will receive the 1/4 in. plywood and hide the edge grain. Round over the front edges of the two shelves. On the top piece, round over the outside of the front edge and the outside of the ends.
Round Over the Edges
On the bottom shelf, round over the top of the front edge. Measure up from the bottom of each side 1/4 in. higher than the height of the base moulding and mark the outside of the front edge. Measure 1/4 in. down from the top of each side and mark the outside of the front edge. Round over each side between the marks.
Tip: Depending on the smoothness of the lumber, you may be able to start with fine sandpaper. Use your best judgement to determine which grit to start with.
Tip: Dry-fit the pieces to make sure they'll fit properly and make any necessary adjustments before beginning the final assembly. Keep the pieces oriented correctly during assembly so you can keep track of everything. When gluing, use just enough glue to bond the pieces and not so much that it oozes out. Squeeze-out causes stain to blotch and can ruin your finish.
Glue the Top, Sides & Rails
Lay Out and Mark the Location of the Deck
Check & Adjust
Stand the assembly on the worktable and ensure that it's level and square. Adjust as needed. Clamp the back to the rest of the assembly. Place weights on the bottom shelf to press it into the front and back rails. Allow the glue to cure.
Scrape off any dried glue. Set all fasteners and putty the holes.
Install the Base Moulding
Cut the base moulding so it fits the assembly. If you want to paint or stain it, do so now. Once you've finished, install it onto the assembly by either nailing or drilling it into place.
Paint or Stain
Paint or stain the assembly and shelves to your liking. If applying several coats, make sure each one dries thoroughly before applying the next.
Tools, products, materials, techniques, building codes, and local regulations change; therefore, Lowe's assumes no liability for omissions, errors, or the outcome of any project. The reader must always exercise reasonable caution, follow current codes and regulations that may apply, and is urged to consult with a licensed professional if in doubt about any procedures.