Things You'll Need
Instructions
Decide if you will be matting your picture before you put it into your frame. Using a mat will increase the size of the frame you need to build. An 8-by-10 print would traditionally go into an 11-by-14 frame when placed in a mat first.
Measure the inside edge of a length of board to match one dimension of the print. If you have matted a print as suggested in step one, measure 14 inches on the inside of the board. Repeat the same process on the other end. Place the board into a miter box or miter saw and cut the board at a 45-degree angle. This will give you the correct angle that will create a corner when glued together. Cut the second matching side to the same dimensions. Repeat the process for the other two sides of the frame. Sand the cuts so they are smooth.
Create a small recessed ledge where the glass will rest in the frame using a router. By running the router along the back of the inside edge of each side of the frame. The recessed ledge should be equal to have the thickness of the piece of wood you are using.
Run a bead of glue along the cuts of the frame, assemble the frame and put the frame into a corner vice. Allow the glue to dry, remove the frame from the vice.
Lay the glass into the frame. Lay the matted picture into the frame. Cut a piece of heavy poster board to cover the rear of the frame. Staple the board in place and run a length of masking tape over the staples to protect the wall from them.