Things You'll Need
Instructions
Cut four pieces of 2-by-4, each 47 1/2 inches long.
Arrange two of the cut 2-by-4 boards side by side on their 2-inch sides, with their outer edges 2 feet apart.
Place a 2-foot by 4-foot plywood plank atop the boards. As the plywood plank is 1/2 inch longer, it will extend 1/2 inch off one end of the boards.
Screw through the plywood plank into the 2-by-4 boards to secure the plywood top to the side rails of the goal.
Repeat with the remaining two boards and remaining large plywood piece to create a second goal frame.
Measure the distance between the inside edges of the 2-by-4 rails. This will be approximately 21 inches, as 2-by-4 boards are approximately 1 1/2 inches thick. The thickness may vary slightly by lumber yard so be sure to measure for an exact length.
Cut two 2-by-4 planks to fit between the rails as support braces.
Secure a support brace between each set of rails. Make the 4-inch side of the plank flush with the ends of the side rails, where the plywood plank extends an extra 1/2 inch, by screwing through the side rails into the support braces.
Set a compass to a 3-inch radius, then draw a circle with a 6-inch diameter on each goal, centered across the 2 foot width and with its center point 9 inches from the back edge of the goal. The back edge is the end where the plywood overlaps the rails and brace.
Drill a hole in each circle, to allow the jigsaw blade to pass through, then cut out each circle with a jigsaw.
Turn the scoring goals over so the plywood is on the ground.
Place a 1-foot by 2-foot plywood plank at the back of one goal, against the support brace so one edge is flush with the end of the plywood top sheet, and secure with screws into the brace. Repeat to complete the second goal.