Skateboarders can slide and grind across the flat-bar grind rail with the metallic parts or wooden areas located on the underside of the skateboard. Skaters push on the ground to gain speed and then jump on top of the grind rail to lock the board onto the flat surface. The skater balances on top of the flat-bar grind rail and then drops off the end to roll away. Unlike other grind rails that have a circular bar, the flat-bar grind rail has a square shape.
Step 1
Extend the measuring tape two feet down one of the 2 x 4 lumber pieces. Draw a line at the two foot measurement with the pencil. Cut down the line with the circular saw. Saw the two foot piece of 2 x 4 in half to make two pieces that have a length of one foot.
Step 2
Extend the measuring tape 17 inches down the 4 x 4 lumber piece. Draw a line at the 17-inch measurement. Cut down the line with the circular saw. Measure halfway down the 17-inch piece of 4 x 4 and cut it in half.
Step 3
Stretch the tape measure 14 inches down the remaining piece of 4 x 4 lumber and draw a line with the pencil. Saw down the line with the circular saw. Measure halfway down the 14-inch piece of 4 x 4 and cut it in half.
Step 4
Lay one of the 7-inch long pieces of 4 x 4 onto the ground to stand vertically. Rest one of the foot long 2 x 4 pieces flat and centered on top of the vertical 4 x 4 to make a T-shaped structure. Drill four screws through the top of the 2 x 4 and into the 4 x 4.
Step 5
Construct a second identical 2 x 4 and 4 x 4 structure that has a T shape. Turn the two T-shaped pieces upside down and place them on the ground to work as the supportive legs for the flat-bar grind rail.
Step 6
Spread the two newly constructed legs six feet apart. Lower the 6-foot long 2 x 4 piece to rest on top of the two T-shaped legs. Drill four screws through the top of the 2 x 4 and into one of the legs. Repeat this process for the second supportive leg.
Step 7
Extend the tape measure 3 feet down the 6-foot long 2 x 4 and draw a line. Measure 1-foot to the left and right of the middle line and make two marks. Place one of the 8-inch tall pieces of 4 x 4 under each of the two marks. Drill four holes through the top of 2 x 4 and into each of the two 4 x 4 pieces to make two more supportive legs.
Step 8
Squeeze the construction grade adhesive on the inside of the two pieces of angle iron. Lay the two angle iron pieces onto the opposing sides of the 6-foot long piece of 2 x 4. Tighten two clamps over each angle iron piece to secure it in place during the adhesive drying process. Remove the clamps after 12 hours.
Things You'll Need
- 1 piece of 4 x 4 lumber, 8 feet long
- 1 piece of 2 x 4 lumber, 8 feet long
- Circular saw
- Pencil
- Measuring tape
- 4 heavy duty clamps
- Box of 2-1/2 inch screws
- Electric drill
- Construction grade adhesive
- 2 pieces of 2 x 2 inch angle iron, 6 feet long
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