Fold under excess fabric at each corner to create a clean corner. Hammer nail head trim along top of fold to secure.
Staple fabric to top and bottom edges of headboard. Note: Do not staple side edges which will be visible after installation.
Flip frame over then trim off excess fabric and batting from edges and corners. Fold fabric over back of frame and securely staple.
Apply heavy-duty construction adhesive to back of headboard frame. Position headboard against wall and press in place. Firmly brace headboard against wall using two 2x4 boards and a sheet of plywood. Let glue set 48 hours before replacing bed.