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Step 3Build the Frame
Begin by arranging the boards as shown.
(photo 1210)
Stand a long and short board upright and form a corner with the long board on the outside. Use a corner bracket to check that it's square.
(photo 1212, 1213)
Drill two pilot holes as shown. Repeat for the remaining three corners. NOTE: if using MDF, you MUST countersink all of the holes or the board will split and the holes will strip if you try to use the screw to "suck" the boards together. Use your judgement with other materials.
Glue the edge of the small board, and dip a screw about 1/2" into some wood glue. This will coat the threads and help the screw to stick. Again, do not skip this step when working with MDF or the joint will not hold.
When you finish both sides, use bar clamps to hold the frame while the glue sets.
Place a corner bracket in each corner and mark which way is "up." We realized we should do this after we picked one up to put glue on it and then couldn't remember which side was which. If you get it spun around, it will be difficult to line up the pilot holes.
Line up the bracket with the top edge of the frame and drill two holes into each edge where the bracket attaches to the frame. Countersink, glue, and screw as before.
Drill a 1/4" hole through the center of each bracket. You do not need to measure the exact placement. This is where you will install the spacer bolts later on.
(photo 1210)
Stand a long and short board upright and form a corner with the long board on the outside. Use a corner bracket to check that it's square.
(photo 1212, 1213)
Drill two pilot holes as shown. Repeat for the remaining three corners. NOTE: if using MDF, you MUST countersink all of the holes or the board will split and the holes will strip if you try to use the screw to "suck" the boards together. Use your judgement with other materials.
Glue the edge of the small board, and dip a screw about 1/2" into some wood glue. This will coat the threads and help the screw to stick. Again, do not skip this step when working with MDF or the joint will not hold.
When you finish both sides, use bar clamps to hold the frame while the glue sets.
Place a corner bracket in each corner and mark which way is "up." We realized we should do this after we picked one up to put glue on it and then couldn't remember which side was which. If you get it spun around, it will be difficult to line up the pilot holes.
Line up the bracket with the top edge of the frame and drill two holes into each edge where the bracket attaches to the frame. Countersink, glue, and screw as before.
Drill a 1/4" hole through the center of each bracket. You do not need to measure the exact placement. This is where you will install the spacer bolts later on.
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