How to set out string lines for a carport

Mick, Team Member
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How to set out string lines for a carport

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Project Overview

When you’re building a carport it’s important to make sure that the measurements are correct and the string lines are square. Just follow this step-by-step guide and we’ll show you how easy it is to do yourself.
Continue to step-by-step instructions

Step by Step Instructions

1 Set up the hurdles
2 Set your first string line
3 Install the second hurdle
4 Mark-off the height of the carport
5 Check the carport is square
6 Check your measurements
7 Run two more parallel string lines
  • Step 1. Set up the hurdles

    Follow the measurements on the approved plan for your carport. Use the nail gun to attach the first hurdle to the sleeper. The height of the carport slab should be the same as the pavers, so make sure that the posts sit a little bit higher than the slab.

  • Step 2. Set your first string line

    You need to take two measurements off your wall, from your approved plan, to make sure the string line runs parallel to your home. After marking the first measurement, use the hammer to drive in a piece of timber that you can tie the string line around. Measure the same distance out from your wall and hammer in a nail. Run the string line beyond the required length of the carport but don’t tie it off.

  • Step 3. Install the second hurdle

    Hammer two hurdles into the ground. Use the nail gun to secure a piece of timber to the hurdles. Pull the string line tight so that it touches the nail you hammered in for your string line. Mark that spot on the piece of timber and hammer in a nail. Tie the string line off around the nail.
  • Step 4. Mark-off the height of the carport

    Use two pieces of wood as a base and a piece of timber to measure the correct height for the carport. Mark this off with a pencil against the fence. Use the nail gun to secure a piece on the fence to mark the correct height.  

  • Step 5. Check the carport is square

    To make sure the carport is square, measure the distance, so that it’s parallel to the paving. Mark that distance and hammer in a nail. Run and tie off the string line.

  • Step 6. Check your measurements

    Measure the distance between the string lines at each end to make sure that they’re square.

  • Step 7. Run two more parallel string lines

    Once the string lines are square, repeat the process to run two more parallel string lines.

    Use fluorescent spray paint to mark any possible trip hazards, like the string lines.
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