BUILDING A LEAN TO CARPORT // Start To Finish (Part 1 of 2)

3 min read 9 days ago
Published on Aug 27, 2025 This response is partially generated with the help of AI. It may contain inaccuracies.

Table of Contents

Introduction

This tutorial provides a step-by-step guide on building a lean-to carport from start to finish. It covers essential aspects such as pouring concrete footers, framing the carport, and installing roof sheathing. Whether you’re a DIY enthusiast or a homeowner looking for extra shelter, this guide will help you through the process.

Step 1: Pour Concrete Footers

To provide a stable foundation for your carport, follow these steps for pouring concrete footers:

  1. Gather Materials and Tools

    • Concrete Sonotubes
    • Concrete mix
    • Water
    • Shovel
    • Level
    • String line
  2. Mark the Area

    • Use the string line to outline the dimensions of your carport.
    • Mark the locations for the concrete footers, ensuring they are evenly spaced.
  3. Dig Holes

    • Dig holes for the sonotubes, approximately 12-18 inches deep, depending on local frost lines.
  4. Insert Sonotubes

    • Place the sonotubes into the holes.
    • Use a level to ensure they are vertical.
  5. Mix and Pour Concrete

    • Mix the concrete according to package instructions.
    • Pour the concrete into the sonotubes, filling them to the top.
    • Smooth the top surface with a trowel.
  6. Allow to Cure

    • Let the concrete cure for at least 24 hours before proceeding to the next step.

Step 2: Frame the Lean-To Carport

Once the footers are set, you can start framing the carport.

  1. Prepare Materials

    • Pressure treated posts (6"x6")
    • Pressure treated gluelam beam (6"x12")
    • Pressure treated joists (2"x8")
  2. Set the Posts

    • Attach the adjustable post base brackets to the cured concrete footers.
    • Secure the 6"x6" posts into the brackets using concrete anchor bolts.
  3. Install the Beam

    • Position the 6"x12" gluelam beam on top of the posts.
    • Use hurricane ties and screws to secure the beam to the posts for added stability.
  4. Add Joists

    • Attach the 2"x8" joists to the gluelam beam, spacing them evenly (typically 16 inches apart).
    • Secure each joist with galvanized nails or screws.
  5. Add Knee Braces

    • Install the 4"x6" knee braces to provide additional support to the structure.
    • Ensure they are positioned at an angle for maximum stability.

Step 3: Install Roof Sheathing

With the frame complete, the next step is to install the roof sheathing.

  1. Gather Materials

    • 15/32 plywood
    • 3" galvanized nails
  2. Cut the Plywood

    • Measure and cut the plywood sheets to fit the roof area.
  3. Attach the Plywood

    • Secure the plywood sheets to the joists using the galvanized nails.
    • Ensure all edges are flush and the surface is level.
  4. Check for Levelness

    • Use a level to ensure the roof frame is even before proceeding.

Conclusion

Building a lean-to carport involves careful planning and execution, from pouring concrete footers to framing and installing the roof. Make sure to follow each step diligently to create a sturdy structure. For the finishing touches and further instructions, be sure to check out Part 2 of this tutorial. Happy building!