How do you fill large holes in wood?

Whether you’re trying to repair a damaged piece of furniture or patch up a hole in your wall, you may be wondering how to fill large holes in wood.

There are many ways to do so; for example, you can use wood filler, caulk, or putty. In this article, we’ll discuss these methods and more as well as look at what materials work best for filling large gaps.

How big of a gap can you fill with wood filler?

  • You can fill large gaps with wood filler.
  • You can fill gaps up to 1/4″ thick.
  • You can fill gaps up to 1/2″ thick.
  • You can fill gaps up to 3/4″ thick.
  • And you’ll also be able to get away with filling some larger ones too!

What to fill big holes with?

To fill a large hole in wood, you should use wood filler. Wood putty is better suited to smaller holes, while deep holes will require you to use more product. You can also use wood putty to fill gaps between boards.

How do you fill holes in rotten wood?

There are numerous products that can help you fill holes in wood. The most common are:

  • Rot-resistant wood filler—This is a great option for filling large holes because it’s waterproof and can be painted over. It’s also easy to work with, so if you’re not experienced at this kind of project, it’s a good place to start.
  • Wood putty—If you don’t want to use a rot-resistant filler, consider using regular wood putty instead. This will fill smaller holes as well as larger ones and create an almost invisible patch that can be painted over like any other piece of furniture or fixture in your house.
  • Wood patch—You may need something more lightweight than the two options above if only small patches are needed on your project (say, one chair leg). A wooden patch works well here because they come in many different shapes and sizes; however, they’ll likely need some kind of adhesive to keep them attached properly while drying out completely

What product fills in holes in wood?

There are a few different materials you can use to fill holes in wood. Here are some of your options:

  • Wood putty is made of chalk, clay, and a binder. The binder helps it adhere to the wood better. Like epoxy resin, it dries hard and clear after being mixed with water. It’s also easy to sand once it has dried so you can get the surface smooth again without any visible seams between where you patched the hole (or crack) and the rest of the wood around it.
  • Wood filler usually comes in tubes like caulking but doesn’t actually stick well until after it dries (which can take weeks). Also like caulking, some varieties contain latex which may cause allergic reactions if breathed in while applying or working with them directly on your skin (though not always!). Again—don’t breathe this stuff!

Is it better to use wood filler or caulk?

When it comes to filling holes in wood, you’ll want to know the difference between caulk and wood filler. For smaller holes, caulk is usually your best bet.

Caulk has a high tack (stickiness) so it will stay where you put it while drying or curing. Caulk also dries quickly, so if you’re in a hurry, this could be your best option.

On the other hand, wood filler takes longer to dry and may get messy if you don’t have time for it to dry before sanding or painting over it (you can also use stain on top of either product).

So what should I use? If you have large gaps or holes that need filling up completely with something thick enough not to show through when painted over then use wood filler instead!

Are wood putty and wood filler the same thing?

No, they’re not the same thing. Wood putty and wood filler are both made from a paste-like substance, but they have different consistencies. They also do different things.

Wood putty is thicker than wood filler, which makes it harder to sand before painting or staining. It’s more expensive than wood filler, too.

How do you fill a deep hole filler?

Filling a deep hole requires a little more patience than filling a shallow one. If the filler is too thick, it won’t be able to flow into the bottom of the hole. When you’re experimenting with how much filler to use, start with a small amount and then add more if needed.

The process is simple: spread filler over both sides of the wood and let dry before sanding smooth. To make sure your new finish will bond properly with old paint or stain, prime first using an oil-based primer.

How do you fix a large hole in plywood?

If the hole is small, you might be able to use wood putty or wood filler to seal it. To fill a large hole in plywood, use a jig saw to cut out the area around the hole.

Sand down any rough edges so that they are smooth and even with the rest of your plywood (or whatever type of wood you’re working with).

Now, mix up some wood filler in accordance with its manufacturer’s instructions. Fill in the space until it’s flush with the surrounding surface, then allow it to dry overnight before sanding thoroughly again.

This will remove any excess filler and make for a smooth surface that can easily be painted over or left natural depending on what look you’re going for!


Hopefully, we answered your question “how do you fill large holes in wood?” We have shown you some great products to use and how they work.

If you are looking for more information on wood repair or any other type of home improvement project, please visit our website where we have many articles just like this one. Thank you for reading!

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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