How to Build Cornhole Boards with the Kreg Woodworking Kit

Quick answer

Use the Kreg Woodworking Kit - Cornhole Boards as the core of the build, then add a Kreg pocket-hole jig and a drill to assemble the frames. The kit supplies precut plywood pieces and instructions, but you still need a jig, drill, and driver to make the pocket-hole joints. Work on a flat surface and clamp every frame joint before driving screws.

What the kit gives you and what you add

The Kreg Woodworking Kit - Cornhole Boards includes precut plywood pieces for two boards and detailed assembly instructions. It is designed for beginners, so the cutting is already done and the main skill you practice is pocket-hole joinery. You will still need a pocket-hole jig, a drill, a driver bit, and a way to clamp parts while screws go in. The Pocket-Hole Jig K4 is a practical match because it adjusts for material from 13 mm to 38 mm thick in 3 mm increments, which covers the 3/4-inch plywood used in the kit, and its industrial-grade toggle clamp holds workpieces securely during drilling and driving.

Set up a flat, stable work surface

Pocket-hole joints pull parts together as screws tighten, so any twist in your bench transfers into the frame. Clear a bench or two sawhorses with a sacrificial sheet of plywood on top, then check it with a straightedge. Keep your jig, drill, driver, and screws within reach so you are not walking around mid-assembly. If you are working on a garage floor, put down a moving blanket to protect the precut pieces from grit.

Understand the regulation dimensions before you assemble

Regulation cornhole boards are 2 feet by 4 feet, with the hole centered 9 inches from the top edge and 12 inches from each side. The hole is 6 inches in diameter. The back of the board stands 12 inches high and the front is 4 inches high. The kit's precut plywood is already sized to these proportions, so your job is to keep the frame square and the playing surface flat rather than to recut anything. If you want to verify the dimensions, measure the plywood before assembly and compare it to these numbers.

Drill pocket holes where they will not show

Place pocket holes on the inside faces of the frame parts so they are hidden after assembly. Set the jig's drill guide for 3/4-inch material, clamp the workpiece, and drill with a steady, straight push. The K4's built-in guide sets the drill bit depth quickly, and the wood-chip relief holes help clear debris so the bit does not bind. A common mistake is drilling at an angle; if the bit wanders, the screw will not pull the joint tight. Check the first hole against a scrap piece before drilling the rest.

Assemble the frame and check for square

Join the frame parts with pocket-hole screws, driving them until snug rather than over-tightened. Measure the diagonals of each frame; if they match, the frame is square. If they do not, loosen the screws slightly, rack the frame until the diagonals match, and re-drive. This is the single checkpoint that prevents a wobbly board later. The K4's toggle clamp is useful here because it holds the parts in alignment while you drive the first screw.

Attach the playing surface and legs

Fasten the plywood playing surface to the frame with pocket-hole screws or the method called for in the kit instructions. Then attach the legs so the back edge sits at 12 inches and the front at 4 inches. If the kit does not include leg hardware, use carriage bolts with washers and lock nuts so the legs can fold for storage. Do not fully tighten the leg bolts until both boards sit level on the ground.

Sand, finish, and check the hole

Sand the playing surface and the hole's inside edge until they are smooth; a rough hole edge will chew up bags. Wipe off dust, then apply paint or a clear finish. If you paint the surface, keep the finish thin around the hole so the diameter stays at 6 inches. Let the finish cure fully before play. A quick test: drop a bag through the hole from a few inches above; it should fall through without catching.

Step-by-step build sequence

1. Lay out the precut pieces: Open the kit and sort the plywood playing surfaces, frame rails, and any leg parts. Read the instructions through once before drilling. Checkpoint: confirm you have two playing surfaces and enough frame parts for two boards.
2. Set the jig for 3/4-inch material: Adjust the Pocket-Hole Jig K4 for the kit's plywood thickness and lock the drill guide. Test on a scrap piece first. Common mistake: leaving the jig set for a different thickness, which changes screw angle and pull strength.
3. Drill pocket holes on inside faces: Clamp each frame part and drill the pocket holes where they will be hidden after assembly. Keep the drill straight and let the bit clear chips. Checkpoint: the hole should be clean and centered, not elongated or burnished.
4. Assemble each frame: Drive pocket-hole screws to join the frame rails. Snug the screws, then stop; over-driving crushes the plywood. Common mistake: tightening one screw all the way before the other joints are aligned.
5. Square the frames: Measure corner to corner on each frame. If the diagonals differ, rack the frame until they match, then re-snug the screws. Checkpoint: matching diagonals mean the board will sit flat and play true.
6. Attach the playing surface: Fasten the plywood to the frame with the method in the instructions. Keep screw heads flush or slightly below the surface. Common mistake: letting a screw head sit proud, which creates a bump under the bag.
7. Mount the legs: Attach legs so the back edge is 12 inches high and the front is 4 inches high. Use bolts with washers if the kit does not include hardware. Checkpoint: both boards should sit level and not rock when pressed.

Product facts

• Woodworking Kit - Cornhole Boards: Premium kit includes precut plywood pieces for two cornhole boards with detailed assembly instructions. You skip measuring and cutting the playing surfaces, so the build focuses on pocket-hole assembly and squaring the frames.
• Pocket-Hole Jig K4: Customizable setup for use with materials from 13 mm to 38 mm thick in 3 mm increments. The jig adjusts to the kit's 3/4-inch plywood and to thicker frame stock if you modify the build.
• Kreg® Pocket-Hole Jig K4 + 20V Ionic Drive™ 1/2" Compact Drill Project Kit: Kreg Pocket-Hole Jig K4 plus 20V Ionic Drive 1/2-inch Compact Drill Project Kit includes the jig, drill, and driver bits. One purchase covers the drilling and driving tools needed to assemble the kit, which is useful if you do not already own a drill.