DIY Projects

How to Pour Concrete Curbing in Your Yard

By: Allen Lyle
DIY concrete curbing around flower bed.

DIY concrete curbing around flower bed.

Adding a concrete curb to your flower garden or foundation bed will help define the space and contain the plants. Here’s how to go about it:

  1. Use a flat shovel to define the outline of the curb and level the ground.
  2. Compact the soil to provide a solid base using a tamp to prevent the soil from settling and cracking the concrete
  3. Install a 4” wide strip of 1/4” hardboard supported by wooden stakes next to planting bed to serve as a form the concrete.
  4. Position 5” long blocks of wood against the inner form.
  5. Install a second hardboard form, supported by stakes, level with the inner form.
  6. Mix up the concrete, adding colorant if desired. We used QUIKRETE concrete and colorant for our curb.
  7. Pour the concrete into the form, using a trowel to smooth it level with the top.
  8. Round off the front edge of the concrete with an edging tool.
  9. Create an indentation in the top of the concrete every 3’ to 4’ with a scoring tool to limit cracking.
  10. Remove form once concrete has set.

Watch this video to find out more.

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7 Comments on “How to Pour Concrete Curbing in Your Yard”

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  • Luke Says:
    April 22nd, 2016 at 12:11 pm

    If you have crabgrass, wire-grass, or other pesky weeds that travel by runners, consider setting the curb deeper into the ground to stop them. A floating curb won’t stop them from traveling from the lawn side to the garden side. Here in Virginia the wire-grass will crawl under anything less than about 6 inches deep. The result of course is that you need almost a wall, rather than a curb. But the techniques are the same – build a form and pour the concrete. Also, consider reinforcing your concrete with rebar or the addition of reinforcing fibers to prevent falling apart. Cracking will happen, ideally at the control joints you put in just like in a sidewalk. But if the concrete is reinforces, the crack will always be just a crack, and not where the pieces fall apart!



  • Josh Says:
    September 10th, 2013 at 2:15 pm

    I’m planning on doing this in my yard for about 100 feet of curb. Yikes that’s a lot.
    I agree with Seth above that with the screws on the inside it seems difficult to take the forms off. How would you go about doing that?
    Also, I can’t find 1/4″ hardboard anywhere? Is there anything you would recommend that would work as well? Would composite landscape edging work? It seems similar.
    Thanks! Keep up the good work!



  • seth m Says:
    October 18th, 2012 at 9:46 am

    I see the forms appear to be screwed to the stakes from the inside. Does that make it difficult to take the forms off? Thanks!



  • brian wieting Says:
    May 31st, 2012 at 10:23 pm

    Are the 5″ spacing blocks left in the concrete or removed?


  • Official Comment:


    Webmaster Says:
    July 5th, 2011 at 11:32 am

    Bill,
    The book is Quikrete’s Guide to Concrete.



  • Bill Says:
    July 5th, 2011 at 10:54 am

    What book are you using in the video?



  • Lane McKinnon Says:
    October 14th, 2010 at 5:01 pm

    A nice way to build a concrete curb. If you have a lot to do, I would recommend a curbing machine.


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