Best Wood Fillers for Decks of 2026

FamoWood is a water-based latex filler that pairs easy handling with a solid hold on exterior wood. Because it is water-based, it has very little odor and cleans up instantly with soap and water, saving you from scrubbing sticky residue off your tools.

It dries rapidly in about 15 minutes, allowing you to sand and finish your deck repairs without waiting overnight. The formula resists shrinking and cracking, making it a reliable choice for exterior cracks. It handles drilling, planing, and sanding just like real wood.

Note that while it is safer than solvents, the dust from sanding any silica-based product can be harmful. Always wear a mask when sanding this down.

Gorilla’s All Purpose Wood Filler keeps deck repairs simple. It is a single-component tub, so there is no hardener to mix. You scoop it, press it into the damage, and smooth it off with a putty knife. The water-based formula spreads to a natural finish and cleans up with soap and water.

It is water-resistant rather than fully waterproof, which suits cracks, gouges, and nail holes on a sealed or covered deck better than a ground-level board that sits in standing water. It resists shrinking and cracking as it dries, and once cured it holds nails and screws, so it covers light structural patches as well as cosmetic touch-ups.

For deep rot or boards that stay wet, a two-part epoxy still bonds harder. But for the everyday mix of repairs most decks need, one tub fills the wood, anchors loose hardware, and takes paint or stain, which is why it earns the all-purpose pick.

Matching a filler to a weathered deck is usually the hard part, and VAN VOTZ builds the answer into the product. It ships in a neutral base plus 18 mixable, stainable colors, so you can blend a patch to the surrounding boards instead of painting over a gray or tan blob. You can also stain over it if you plan to refinish the whole board afterward.

This is an exterior-grade, waterproof formula, which is what a deck actually needs. It is built to take snow, sun, rain, and humidity, and it carries an anti-corrosive agent that shields the filled nail and screw holes from rust and the structural weakness rust causes. Despite that performance it stays water-based, so there are no solvent fumes and cleanup is soap and water.

The half-pint can is smaller than the bargain tubs on this list, so it is aimed at visible, color-matched repairs rather than filling large areas of a big deck. For railing spindles, post tops, and face boards where the match shows, it is the one to reach for.

This Bondo variant is formulated specifically for wood, as opposed to the brand’s general all-purpose putty. It cures fast, becoming sandable in 15 minutes and paintable in 25. That speed matters when you are racing against the weather.

It is a two-part system that requires a hardener. The mixture turns a pale brown, which blends better with natural wood tones than the gray all-purpose putty. It is naturally water-resistant and handles the expansion and contraction of exterior decks without cracking.

Because it hardens chemically, it works well for rebuilding rotted corners or filling deep voids where water-based fillers would sag or take days to dry.

For serious structural damage, PC Woody is the professional choice. This is a true epoxy paste that is resistant to dry rot, UV light, fresh water, and even salt water. It is excellent for pressure-treated decks and even boat repairs.

The paste has a high tack, meaning it sticks to vertical surfaces without dripping. You have a generous 30 to 40 minutes of working time after mixing, which reduces stress compared to faster-setting fillers.

It can withstand extreme temperature fluctuations from -20 to 200 degrees Fahrenheit. Once cured, it acts like real wood; you can drill screws into it, nail it, or route it. The main tradeoff is the cure time, which takes 12 to 24 hours.

DAP Platinum Patch is engineered specifically for exterior durability. It features advanced weatherable technology that resists mold, mildew, and UV fading. It creates a waterproof seal that protects your deck from rain and snow.

You can apply it with a standard putty knife. It has excellent adhesion and can fill large gouges in composite decking, PVC, wood, and metal. It is rain-ready in 24 hours, so check the forecast before applying.

Once cured, it provides a smooth surface that takes paint and stain well. It is a versatile, heavy-duty option for homeowners who want professional-grade weather protection without mixing two-part epoxies.

Elmer’s Stainable Wood Filler contains real wood fibers, which helps it absorb stain more naturally than synthetic pastes. This makes it a great match for pine decks where grain visibility matters. It works for both interior and exterior repairs.

The formula is solvent-free and water-based, ensuring easy cleanup and low odor. Despite being water-based, it dries hard enough to hold screws and bolts, which is rare for this category of filler.

The tub seals tightly to prevent the product from drying out in storage. Be cautious during application, as the mixture can irritate eyes and skin. Always wear gloves.

Minwax is a staple in woodworking for a reason. This stainable filler is designed to absorb both water-based and oil-based stains, so repairs blend into your deck boards once stained. It works effectively on cracks, nail holes, and gouges.

It applies easily with a putty knife and dries relatively quickly, usually curing within 4 to 6 hours. While not instant, it allows you to finish repairs in a single afternoon.

Note that this particular formula is solvent-based, giving it a strong chemical odor. You will need to work in a ventilated area and use mineral spirits for cleanup. However, that solvent base provides excellent weather resistance once hardened.

Goodfilla solves the biggest annoyance of wood filler: drying out in the tub. This water-based product has an unlimited shelf life because you can simply add water to reconstitute it if it hardens.

It is completely non-toxic, zero-VOC, and safe for the environment. It does not shrink, sink, or crack, and it grips bare wood well. The walnut tint works well for darker woods, but it is also available in other shades.

You may find it slightly harder to spread initially compared to vinyl spackle, but a little water smooths it out. It offers greater coverage area per ounce than many competitors, making it a cost-effective choice for large decks.

Minwax Wood Putty is different from the other products on this list because it is non-hardening. It remains flexible forever. This makes it excellent for filling small nail holes in railings, balusters, or vertical posts where wood movement is constant.

Warning: Do not use this on the walking surface of your deck. Because it stays soft, foot traffic will track it everywhere and wash it out.

It comes pre-colored to match specific wood stains, so no sanding or staining is required. Simply press it into the hole and wipe off the excess. It is perfect for quick cosmetic touch-ups on finished wood trim but unsuitable for structural repairs.