1. Cut the wood strips into sections according to the drawn side length with a hand saw, draw lines and cut corners with a 45-degree square, then aim at the 90-degree riding seam, punch one first, and finally adjust the frame and add nails. There is a book in the middle, used as a 90-degree square.

2. All four corners are coded. After correcting the shape of the frame, all four corners of the frame 2 are coded, which is stable.

3. Use a wooden file to slightly polish some inclined surfaces on the inner edge of the side contacting with the canvas, so as to avoid traces of wooden edges after the canvas is repainted, just like an oil painting frame.

4. Stick a film on one side of the polished slope and fix it with a few yards at will. Cut it as big as the photo frame, and be sure to be flat. This is the dust prevention behind the painting.

I won't talk about wiping the canvas. Clean the canvas and fold or iron it along the edge of the pattern. The purpose of this is to use water chestnut to make the edge of the finished picture frame look better. Then, the side of the frame with bevel edge and film pasting is facing the canvas, aiming at the edge of the pattern, and the corners are fixed with code nails.

6. Tighten the canvas opposite the first two yards and fix it with yards. Be sure to pay attention to the square shape, not oblique. Then nail one by one along the edge, and the left side is also 1.

7. Fold the corners as flat as possible. If the cloth is thick and difficult to fold flat, you can cut it properly, so it will be easy to fold flat, and then nail it, doing this at all four corners.

8. After the canvas is nailed, cover the front with a film, fold it back and fix it along the edge, and then fix it around with that packing tape. Finally nail the hook and you're done.