Note: I am not a professional and do not claim to be an expert. Please be sure to always read instructions for all tools and products. Safety is very important and should be your top priority. Wear necessary protection when using tools (eye wear, hearing protection, gloves, etc.) and dust masks when sanding or cutting. Sarah Flips It is not responsible for any injury or damage. All of my designs are not professionally designed and are for private use only.

Build a beginner-friendly DIY custom canvas frame for your artwork! This is the perfect starter project for a new DIY-er and is sure to save you $$$. Learn how to build your frame with this step-by-step tutorial!

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If you’ve ever bought a canvas and thought, “This needs a frame,” but didn’t want to spend a fortune—this DIY is for you. This step-by-step tutorial shows you how to build a custom wood frame for canvas art using simple tools and affordable materials. Whether you’re framing a painting, print, or gallery canvas, this method creates a clean, professional look—without paying custom framing prices.

Supplies for DIY CANVAS FRAME

Tools:

Materials:

  • Scrap wood (I used solid oak)
  • Wood filler
  • Corner clamps
  • Brad nails
  • Paint or stain
  • Your canvas

How to build a custom canvas frame

1. CUT the back braces

Start by cutting four pieces of ½-inch wood for the back braces. These will sit in each corner on the back of the frame and support the canvas. Cut the brace pieces at 45-degree angles, about 3–4 inches long. Use the first brace as a template for the remaining three so they all match.

2. Measure the Frame Depth

To determine how wide your frame boards need to be, stack one piece of your ½-inch brace wood and your canvas on top of each other. Measure the combined depth. This total measurement is the width you’ll cut your frame boards.

Example: If your canvas is ½ inch thick and your brace is ½ inch thick, your frame boards should be 1 inch wide.

3. Rip the Frame Boards

Using a table saw, cut several boards to the width you just measured (mine were 1 inch wide.) It’s a good idea to cut a few extra pieces in case of mistakes. To make sure the top and sides match perfectly:

  • Cut your first frame piece
  • Overlap the boards, trace the cut line with a pencil, and cut
  • Use it as a template for the others

This helps keep everything aligned and square.

4. Cut the Frame Angles

Set your miter saw to 45 degrees and cut the frame pieces into trapezoid shapes. Make sure the angles angle outward—the narrow edge will be the front face of the frame.

5. ASSEMBLE THE FRAME

Now it’s time to put the frame together:

  1. Apply wood glue to both sides of each corner
  2. Secure the pieces in a corner clamp and tighten
  3. Nail at least two brad nails per side
  4. Repeat for all four corners

6. Install the back braces

Position each brace along the back edge of the frame so the canvas can rest on top of it.

  • Glue the braces in place with wood glue
  • Nail them carefully
  • Make sure they sit flat to leave enough room for the canvas

7. fill, sand, and paint THE FRAME

Use wood filler to fill nail holes and corner seams. Once dry, use an electric sander or a sanding block to sand everything smooth. I also lightly rounded the corners for a softer, finished look. Paint, stain, or seal your frame however you like. I used this gold acrylic paint. Antique Rub ‘n Buff is another popular option! Allow everything to dry completely before moving on.

8. ATTACH THE CANVAS TO THE FRAME

Lay the canvas face-down, then place the frame on top (also upside-down). Nail the braces into the wooden stretcher bars of the canvas.

Note: Make sure your nails are shorter than the frame depth so they don’t poke through the front!

Final Thoughts

That’s it! You now have a custom-built frame that fits your canvas perfectly and looks professionally made—without the professional price tag. This method works great for artwork, canvas prints, or even gallery walls.

Once you make one, you’ll probably want to make more 😉