how much wood filler can you use?

Wood filler is an incredibly useful tool for any handyman or DIYer. It’s easy to use, and it can help repair cracks in wood furniture, patch holes, and fill gaps in walls.

But how much wood filler should you use? We’ll answer that question here as well as other common questions about using this handy product.

For example: How much does it cost? Can it be layered on top of itself? Can you use it over paint or stain? And most importantly: Is using too much filler bad for your home?

Can you use wood filler for large gaps?

You can use wood filler to fill large gaps, cracks, and holes. This is because the product will expand as it dries and fill any gaps or voids that are present on the surface of your wood.

However, if you’re working on a very large area then it may be more cost-effective to use tile grout instead as this will provide a better solution in terms of appearance.

How much wood filler do I need?

It all depends on the size of your gap. If you have a large gap, you’ll need more filler to fill it up; if you have a small gap, then less wood filler will do the trick.

You can always use too much wood filler—it’s better to err on the side of using more than not enough!

Can you layer wood filler?

Yes, you can layer wood filler. In fact, you may want to if your repairs are extensive or there’s a lot of wood filler needed.

Layering gives added strength and makes the surface smoother in appearance by eliminating any ridges in between layers.

When applying multiple layers of wood filler, be sure they are dry before applying another layer. Use a wet sponge or cloth to remove excess moisture from the surface of the dry layer before applying another coat (if desired).

How big of a hole can you use wood filler?

For shallow holes up to 1/8” in diameter, wood filler is the perfect solution. If your hole is bigger than that, however, you may need a patching compound instead.

Patching compounds have a slightly different composition from wood fillers and as such can be used for larger holes.

If your hole is even bigger than that—big enough to fit your finger through or more—it might be time for an entirely different kind of product: putty or paste-based wood fillers.

These products are made specifically for filling gaps and cracks in furniture and other large surfaces with many voids, so if you know you’ll need something stronger than regular filler but don’t want to deal with messy drying times or caulk tubes (or both), then this type is for you!

Is it better to use wood filler or caulk?

Caulk is a great product for small gaps, but it’s also not as strong as wood filler. If you’re looking to fill in bigger gaps, or just seal up a seam on a piece of furniture, then you might want to opt for wood filler instead.

Wood filler can be used for either filling large gaps or applying directly over the surface of your project if you don’t have any large gaps to fill.

It’s easier to apply than caulking, so if you’re not comfortable with caulk guns and all that goop inside them (it happens!), then it might be better for you!

In terms of strength and durability-though…caulk wins hands down! It’s stronger than wood filler and lasts longer too.

However, caulking isn’t as flexible when compared with some types of wood fillers like polyurethane-based ones which makes them ideal if you need something durable under constant pressure such as stairs or roof shingles where they will get walked on often by people wearing heavy shoes while trying not to fall off.

How do you fill large cracks in wood?

To fill a large crack, you can use the same method as spot repairs. However, instead of using a putty knife or a similar tool to apply the filler, you’ll use your finger.

  • Apply the wood filler in small sections and blend it into the surrounding wood by rubbing it with your fingers or a wet rag. Let dry for 24 hours before sanding down any bumps or ridges that remain from applying the filler.

How much is too much wood filler?

The answer is “as little as possible.” Wood filler isn’t expensive, so you can easily go through a tube or two of it. But don’t overdo it—more wood filler won’t help you fix holes that are too deep and will just make sanding more difficult.

Is wood filler strong enough to screw into?

Wood filler is not strong enough to screw into. Just like the wood it fills, wood filler isn’t a solid mass and will compress over time, potentially making your screws loose.

Using screws with a thread lockers in this situation will help them stay put longer until you can replace them after the filler has hardened completely.

Wood filler should only be used for filling gaps and cracks in drywall or other surfaces such as furniture and cabinets—not for structural purposes like hanging pictures or shelving on a wall where screwing into it would be expected.


This article has covered what wood filler is and how to use it. You can choose from different wood fillers, depending on your needs and preferences.

The most important thing is to buy the right one for your project so that it doesn’t take up too much time and money!

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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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