How to Shape Coiled Siding Without a Siding Brake

Quck answer

To bend coil siding without a siding brake, follow these steps:

1. Measure the length of the siding you need to bend and mark it on the coil siding.

2. Use a utility knife to score the surface of the siding along the marked line.

3. Place a 2×4 board underneath the scored line and apply pressure to bend the siding.

4. Gradually increase the pressure until the siding is bent to the desired angle.

5. Use a rubber mallet to further shape the bend if needed.

6. Repeat the process for any additional bends required.

By following these steps, you can bend coil siding without the need for a siding brake.


A siding brake is a tool used to bend aluminum or flexible vinyl siding to the desired angles by utilizing leverage from a hinged joint. However, if you only need to bend a few pieces of coiled siding, you can create an effective brake using scrap lumber. This method is recommended for DIY siding repair or small projects, while a siding brake is more suitable and efficient for larger or professional jobs.

Step 1

Using a saw, cut two sections of 2-by-4 lumber that are 2 feet long.

Step 2

Attach hinges to one of the 2-inch sides of one board. Ensure that the hinges are positioned in a way that allows another board to be attached on the opposite side of the hinge, while still allowing both boards to lie flat together. Place a hinge at each end of the board and one in the center.

Step 3

Place the board with the hinges on your work surface, with the 4-inch side facing down and the hinges pointing upwards. Stack the other board on top of this one and secure the hinges in place.

Step 4

Lay the homemade brake on the work surface, with the two pieces of wood spread apart and the hinges facing upwards.

Step 5

Using a saw or snips, cut the coiled siding to the desired length. Align the bending point of the siding with the hinged joint of the homemade brake. Place a piece of scrap wood on top of the metal and clamp the scrap lumber, metal, and bottom hinged board to the work surface.

Step 6

Raise the other hinged board and exert pressure on the coiled siding using the wood. Continue bending in this manner until the desired angle is achieved.

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