Locate two consecutive studs in your kitchen along the wall where you want to place the spice rack. Mark the found studs with a pencil.
Cut a 1/4-inch rabbet into one edge of two 12-inch long, 1-by-2-inch popular wood board using a table saw. Cut a 1/4-inch rabbet into both ends of both 12-inch boards leaving only one edge of the board without a rabbet. The rabbets must be on the same side of the boards.
Cut a 1/4-inch rabbet into one lengthwise edge of two 17-inch long,1-by-2-inch popular boards.
Mark the 12-inch boards with a pencil four inches from one end and eight inches from the same end. Cut dadoes into these places using the 1/4-inch table saw blade. Cut twice to make a ½-inch dado in each marked spot.
Place wood glue into all rabbets on all wood boards. Place one 17-inch board inside the rabbets on one end of the 12-inch boards so the lengthwise rabbets on all three boards connect and the three boards make three sides of a box.
Slide a 12-by-17-inch plywood board into the rabbets on the three boards. Use your hand or a rubber mallet to pound the plywood into the three boards. Place the second 17-inch board on the open space, into the rabbets on the 12-inch boards, making a box. Hammer 1½-inch nails into the back plywood board along the edges at 1-inch intervals.
Clamp the box together by placing a clamp on both ends of the 12-inch boards and on both ends of the 17-inch boards. Allow the glue to dry for at least an hour.
Place glue into the dadoes on the 12-inch boards. Insert two 17-inch long 1-by-2-inch boards, making shelves, into the dadoes and pound them down with your hand or a rubber mallet.
Place glue along the front of the shelves and place a ½-by-17-inch slat on the front of each shelf, flat creating a block to keep the spices on the shelf. Hammer a 1½-inch nail into the ends and at two places long the front. Allow the glue to dry for about an hour.
Stain the spice rack with wood stain using a sponge to keep it from pooling in the corners. Allow to dry for at least an hour.
Place the spice on the wall. Screw the spice rack to the two studs you located earlier using two 2-inch screws and a cordless drill. The spice rack is 17 inches wide and the studs are 16 inches apart. Mark a small dot on top of your spice rack ½-inch in from each end to help you know where to screw the spice rack.