How to Make a Picture Frame | Cut, Fit, And Hang

Making a picture frame means cutting four pieces of moulding at 45-degree angles, joining them into a rectangle, and adding glass, backing, and hanging hardware.

Building your own picture frame lets you match any artwork, save money over custom shops, and control the quality from start to finish. The process takes patience more than skill — a miter saw, wood glue, and a few clamps are the core of it. Once you understand the workflow, you can frame anything from a postcard to a poster. If you’d rather buy than build, see our picks for the best 4-frame picture frame sets after you finish the article.

What You Need To Frame A Picture

The basic materials and tools list is shorter than most beginners expect. For the frame itself, you need moulding or wood stock, wood glue, corner clamps or a band clamp, a miter saw or a miter box with a handsaw, and sandpaper. For the finishing side, add a measuring tape, a square, nails or brads, and hanging hardware.

Everything else — glazing, backing board, and matting — depends on the artwork. A framing-ready moulding already has a rabbet cut into its back edge, which is the recess that holds the glass, picture, and backing. Shop for moulding that includes this rabbet, or plan to cut one yourself with a router.

Measuring: The Step Most People Get Wrong

Measure the mat opening, not the picture itself. A common beginner mistake is sizing the frame to the photo, only to find the mat no longer fits once the frame is assembled. One framing guide recommends using the mat to determine the finished dimensions, and Fine Woodworking suggests allowing wiggle room by adding 1/8 inch in each direction.

Here is the measurement workflow:

• Measure the artwork or mat opening to get the inside dimensions.
• Add 1/8 inch of wiggle room in each direction so the contents sit comfortably.
• Account for the moulding width twice — once for each side — when calculating the outside cut length.
• Mark each piece clearly so you know which end meets which neighbor.

Cutting And Joining The Four Sides

Cut all four ends at 45 degrees so the corners meet as perfect right angles. Set your miter saw to 45 degrees and cut each piece with the rabbet facing the inside of the frame. Keeping the rabbet on the inside is the detail that separates a working frame from one that won’t hold glass.

After cutting, dry-fit the four pieces on a flat surface before any glue appears. This test run catches measurement errors while the pieces are still easy to fix. When everything lines up, apply wood glue to the mitered edges, clamp all four corners, and check the assembly with a square. Let the frame dry overnight — skipping this wait is a common mistake that leads to corners pulling apart during finishing.

Once the glue sets, reinforce the corners with nails or brads if you want extra strength, then sand, stain, or paint. The final stack order is glass on top, the picture in the middle, and the backing behind it.

Common Mistakes And Safety Basics

Most failed frames trace back to a handful of errors. Cutting the wrong side of the miter, measuring the picture instead of the mat, and letting the rabbet end up on the outside are the big three. Dry-fitting before glue-up and letting the frame dry fully are the two steps beginners skip most often.

Safety matters more than speed. Fine Woodworking’s picture frame guide covers the full process, and its project guidance emphasizes eye protection and careful tool handling with saws and routers. Work slowly, keep fingers clear of blades, and wear safety glasses throughout.

The method above assumes you’re working with real wood moulding. Cardboard, sticks, and decorative craft frames follow a different process with no miter cuts or rabbets — the structural steps here don’t apply to those projects. For a wood frame destined to hold a photo, this workflow produces a result that looks professional and holds up for years.