How to Install Concrete Carstops

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Concrete car stops, typically found in parking lots, act as a barrier to stop cars from hitting or parking too close to walls, doors, windows and other parts of buildings. Manufacturers pour concrete reinforced with rebar into molds and then compact the concrete to form a car stop. Generally, car stops come in a standard size of 6 feet long by 6-1/2 inches high, with predrilled holes along the top, and weigh in excess of 200 lbs. Securing car stops is necessary to prevent cars from hitting and moving them.

Things You'll Need

  • Tape measure
  • Notebook
  • Pencil
  • Chalk
  • Power drill
  • Masonry drill bit
  • 18-inch rebar pins
  • 2 assistants
  • Eye protection
  • Work gloves
  • Dust mask
  • Call your local utility companies to mark gas, electric and water lines before drilling to ensure you do not drill into a line.

  • Contact your local town or municipality to determine the required distance from the structure to the car stop and the distance between car stops. Some local codes call for a specific distance between the car stop and a structure so as to provide a walking area for pedestrians.

  • Use a tape measure to measure the distance from the center of the first predrilled hole to the center of the second predrilled hole along the top of the car stop. Write down the measurements.

  • Mark the ground with chalk, using the measurements from hole to hole.

  • Equip a power drill with a masonry drill bit equal in size to the diameter of the rebar pin to drill through concrete or asphalt. Position the masonry drill bit over the ground markings and drill a hole 8 inches deep. Repeat for the second mark. Drilling a hole 8 inches deep penetrates through most lot surfaces into the ground below. If the concrete or asphalt plus the gravel base is thicker than 8 inches, drill the hole deeper until you reach the soil beneath.

  • Set the concrete car stop in place, aligning the predrilled holes with the holes in the ground. Have an assistant lift one end while a second assistant lifts the opposite end.

  • Insert an 18-inch rebar pin through the predrilled hole, lining it up with the hole drilled in the ground. Tap the top of the rebar pin with a 4-lb. masonry hammer to drive the pin into the hole. Continue to strike the rebar pin until the top of the pin sits flush with the top of the concrete car stop.

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References

  • "The Contractor's Guide to Quality Concrete Construction"; American Concrete Institute; 2005
  • "Masonry"; Time Life Editors; 1977
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