Barricades are used for a wide variety of reasons, including rerouting traffic, whether it's automobiles or foot traffic. You see them in public places when many people converge in one location such as a rock concert. At river markets and festivals, they are used to inform people where they can find restrooms or first aid. Building your own barricades is something the do-it-yourself consumer can tackle with confidence. They are constructed much like sawhorses. In those cases, the cross member of the sawhorses usually dons vinyl barricade tape appropriate for the need.

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Barricades are used for many different reasons.

Step 1

Place one of the pieces of 24-by-36-by-3/4-inch treated plywood on a worktable. Position it on the table so the 36-inch side is parallel with the front of the worktable. Measure from the left-hand corner and make marks on the 36-inch side at 15 and 21 inches.

Step 2

Set the straightedge on the 15-inch mark and the corner to your left on the opposite 36-inch side. Draw a line from the mark to the corner with a pencil. Repeat this with mark at 21 inches and the corner to your right.

Step 3

Cut the lines with a circular saw. Turn the piece around so the opposite 36-inch side is closest to the front edge of the worktable. Measure from the corner on your left and make a mark on the 36-inch side at 9 inches. Repeat this from the corner on your right and then mark the center of the 36-inch side.

Step 4

Put the framing square on the center mark and draw a 9-inch line. Hold the long leg of the framing square on the line so the corner of the framing square is at the end of the 9-inch line and the short leg of the framing square goes to the right. Draw a 3-inch line to your right.

Step 5

Flip the framing square over and draw a 3-inch line to your left. Set the straightedge at the end of the line on your left and the 9-inch mark on the 36-inch side of the plywood and draw a line.

Step 6

Repeat this with the other end of the 6-inch line and the other 9-inch mark. Cut the lines with a jigsaw. Turn the plywood around again.

Step 7

Mark the center point of the 6-inch side of the plywood and then mark 3/4 inch in both directions of the center mark. Put the framing square on the marks and draw a 10 1/2-inch line from each mark. Connect the ends of the two lines and then mark each line at 4 1/2 inches from the 6-inch side. Connect those marks with a line, resulting in a rectangle.

Step 8

Drill a 3/8-inch hole inside the 1 1/2-by-6-inch rectangle. Slip the jigsaw blade into the hole and cut out the rectangle. Set this piece on the other piece of 24-by-36-by-3/4-inch treated plywood and trace its pattern onto it. Cut the second piece to look like the first. Insert the 2-by-6-by-48-inch lumber into the rectangle cutout and lean the A-frames toward the center.