DIY Guide: How to Bend Rebar in a Perfect Circle by Hand

Bend Rebar in a Perfect Circle

Imagine you are on a concrete construction site. The workers have prepared the rebars for work, but then you realise there are no rebar stirrups, stakes, or 90-degree hooks. These materials are critical in concreting construction for strength and stability; therefore, you can’t proceed without them. What do you do in such a situation?

You don’t have to stop work on site. There are solutions. You can turn straight rebars into circles; all you need is a pipe and your hands. Sounds impossible? This post presents a DIY guide on how to bend rebars in a perfect circle by hand. Sit back and learn

Tools and Materials Required

Since it is impromptu and a DIY construction project, you don’t need cutting-edge or futuristic equipment. The tools and materials you need to bend rebars into circles are easily accessible; in some cases, you may have them on-site already. Here are the materials you need to bend rebars with your hand.

  • Two pipes (preferably galvanized with thick walls to bear stress) or a carpenter’s pipe clamp.
  • Measuring tape.
  • A marking tool (pencil or chalk.)
  • Safety wear (Safety glasses and gloves)
  • Bending jig

As you can see, these are instruments and materials already available on-site. Now, let’s get to it and bend those rebars with our hands!

Preparing the Rebar for bending

Preparing the Rebar for Bending

Before you proceed, you want to be sure that the rebars are in good enough shape or condition and have the desired length. Hence, the importance of getting them ready. Follow the steps below to prepare your rebar for bending by hand.

Clean the bars to eliminate dirt and rust

To achieve a clean and perfect circle, rid the rebar of dirt and rust. Dirty or rusty rebars may not only affect the bending process. They may also be hazardous to you.

Cut the bars to the desired length

You must cut the bars into the required length/diameter before bending to avoid an oversized or undersized diameter after turning the bar.

Once the bars are clean and at the required length, we can bend them.

Cleaning the rebar to remove any dirt or rust

Proper cleaning of the rebar is essential before bending to ensure a smooth process and to maintain the strength of the material. Dirt and rust can weaken the bond between the rebar and concrete, reducing the overall effectiveness of the reinforcement

Bending the Rebar

Bending the Rebar

When manually bending rebars into circles by hand, you may need a bending jig or template to achieve uniformity in the circumference of the rebar rings. Follow the step-by-step guide below to bend rebars to circles by hand.

Using a Bending Jig or Template to Ensure a Uniform Circle

A bending jig or template is a valuable tool for achieving uniform circles when bending rebar by hand. It helps maintain consistent shape and size, which is essential for the structural integrity of your project. Here, we’ll provide a step-by-step guide to bending rebar using a bending jig or template and share tips for achieving a tight and even circle.

Step-by-Step Guide to Bending Rebar by Hand Using a Bending Jig or Template

  1. Create a bending jig or template: Obtain a sturdy piece of plywood or thick board as your base. Draw a circle on the plywood with the desired diameter for the rebar circle, using a compass or a string and pencil. Insert nails or screws at equal intervals along the drawn circle. The nails should be slightly larger than the diameter of the rebar you’re bending.
  2. Prepare the rebar: Clean the rebar using a wire brush or steel wool to remove rust, dirt, and debris. Measure and cut the rebar to the desired length, adding extra length for overlap.
  3. Mark the rebar: Use a marking tool (pencil or chalk) to indicate where you want to start bending the rebar and any additional points where you need to bend it around the jig.
  4. Align the rebar with the jig: Position the rebar against the nails or screws on your jig, with the marked area aligned with the first nail.
  5. Bend the rebar around the jig: Apply pressure to the rebar, bending it around the nails or screws on the jig. Continue this process until the rebar follows the complete circle drawn on the plywood.
  6. Secure the ends: Overlap the ends of the rebar circle and secure them using rebar ties or welding, depending on your project’s requirements.

Tips for Achieving a Tight and Even Circle

  1. Apply consistent pressure: When bending the rebar around the jig, ensure that you apply consistent pressure to create an even circle. Irregular pressure may result in uneven curves or kinks in the rebar.
  2. Use leverage: If the rebar is difficult to bend by hand, consider using a pipe or a long piece of wood as a lever to apply additional force.
  3. Bend slightly beyond the desired angle: To achieve a tight circle, bend the rebar slightly past the desired angle. This helps compensate for any spring back that may occur when you release pressure from the rebar.
  4. Adjust as needed: After completing the circle, inspect it for any imperfections or unevenness. Gently bend the rebar further or straighten it as needed to achieve the desired shape.
  5. Practice and patience: Bending rebar by hand takes practice and patience. The more you do it, the more proficient you’ll become at achieving uniform circles.

By using a bending jig or template and following these tips, you’ll be able to bend rebar into uniform circles by hand successfully. This skill will prove valuable in various construction projects, ensuring that your concrete structures have the necessary strength and stability.

Finishing Touches

Finishing Touches

You can expect some imperfections and unevenness because the entire process is done manually and by hand. However, it is not an issue without a solution. After bending the rebar, you may want to do the following:

Check for unevenness and imperfections and make adjustments if needed

Check to ensure you have the desired shape and bend you want. If not, you should make corrections till you are satisfied with the result.

Making any necessary adjustments to achieve the desired shape

After bending the rebar into a circle, there’s a possibility that the shape may not be perfect or as precise as you want it to be. In this case, you’ll need to make adjustments to achieve the desired shape

Sand the edges to remove rough and sharp points

The edges of the iron pipe may gouge or chip the surface of the rebar, leaving some rough or sharp points on it. You must sand these rough and sharp edges to avoid cuts and injuries.


On getting here, you not only know it is possible to bend rebars by hand, but you can also do it in six easy steps. However, you must be utterly careful and practice safety while performing such operations. The coating may flake and fly in any direction as you bend the rebar. Protect your skin and eyes always. Hence the importance of your safety goggles and gloves.