Can Warped Composite Decking Be Straightened?

If you have composite decking in your backyard and it’s become warped, you may be wondering if it can be straightened. The short answer is that yes, composite decking can generally be straightened provided that there are no major damage spots.

However, if there are major damage spots or the decking is already severely warped, then it may be best to replace the entire deck rather than try to straighten it. In this guide, we will go over the different types of composite decking and how they should be treated when it becomes warped.

How To Tell If Your Composite Decking Is Warped

Warped composite decking is not only unsightly, but it can also be dangerous. If you have a warped deck, you may be wondering if it can be fixed or if you need to replace it entirely. Luckily, there are a few ways to tell if your composite decking is warped so that you can take the necessary steps to fix the problem.

One way to tell if your composite decking is warped is by looking at the boards themselves. If the boards are no longer level with each other or they appear to be bent, then your deck is likely warped. Another way to tell if your deck is warped is by walking on it.

If you feel like you are wobbling or the boards are giving way under your feet, then your deck is definitely warped and needs to be repaired or replaced.

If you have a warped composite deck, there are a few things you can do to try and fix the problem. First, check all of the fasteners to make sure they are tight. Loose fasteners are often the cause of warped decks.

If the fasteners are tight, then you may need to replace some of the boards. Start by replacing the boards that are most warped and work your way down from there. You may also want to consider hiring a professional to help you with this process.

Replacing or repairing a warped composite deck can be time-consuming and expensive, but it is definitely worth it in the end. A safe and sturdy deck will add value to your home and provide you with years of enjoyment.

What Causes Composite Decking To Warp

One of the most common causes of composite decking warping is improper installation. If the boards are not installed properly, they can start to warp and bend as soon as they’re exposed to the elements. Composite decking should be installed using hidden fasteners, and the boards should be laid in a staggered pattern to help prevent warping.

Another common cause of composite decking warping is exposure to extreme heat or cold. If the boards are exposed to direct sunlight for long periods of time, they can start to warp and bow. Similarly, if the boards are exposed to freezing temperatures, they can also become warped. To prevent this, make sure to store your composite decking in a cool, dry place when it’s not in use.

If your composite decking has become warped, you may be able to straighten it out yourself using a few simple tools.

First, wet the warped board with a hose or water sprayer. Then, use a straight edge or level to see if the board is bowed. If it is, place a 2×4 on either side of the board and use clamps to secure it in place. Finally, use a power drill to screw the 2x4s into the board at an angle so that they pull the board back into place.

Can You Straighten Warped Composite Decking?

If your composite decking has become warped, you may be wondering if it can be straightened. The good news is that yes, you can straighten warped composite decking. However, it is important to note that this is not a permanent fix and the warping may occur again. To straighten your warped composite decking, you will need to use a heat gun or hair dryer. Apply heat to the warped area for a few minutes until it is soft and pliable. Then, use a putty knife or other flat object to straighten out the warp. Let the area cool completely before walking on it or applying any weight to it.

How To Prevent Your Composite Deck From Warping In The Future.

If you have a composite deck, you may be wondering if it is susceptible to warping. Composite decks are made of a mix of wood and plastic, so they can be more durable and longer lasting than traditional wooden decks. However, they can still become warped over time due to exposure to the elements or improper care. Here are some tips to prevent your composite deck from warping in the future:

  1. Store your composite decking material in a cool, dry place before installation. This will help prevent the material from becoming warped before you even start building your deck.
  2. Build your deck on a level surface. If the surface is not level, the deck may become uneven and warp over time.
  3. Use proper supports when building your deck. The supports should be placed at regular intervals so that the weight of the deck is evenly distributed. This will help prevent warping due to uneven pressure on the decking material.
  4. Avoid putting heavy objects on your composite deck. The weight of these objects can cause the decking material to warp or become misshapen over time.
  5. Clean your composite deck regularly with soap and water. This will help remove dirt, debris, and other materials that could potentially cause warping.


We hope this quick guide has helped you determine whether or not your composite decking can be straightened. If you find that it can’t be, don’t fret!

There are many ways to prevent your composite decking from warping in the future. With proper care and maintenance, your deck will be sure to last for years to come. Thanks for reading!