Do wood decks need to be sealed?

A backyard deck can be the perfect platform for good times, but a wooden surface needs a proper sealant to protect it against the ravages of sun, rain, and temperature fluctuations.

What happens if you don't seal deck?

It is highly unlikely that the deck will rot, splinter or decay if you choose not to have it finished and you can always choose to stain and protect the deck at a later date. If you choose to revitalize the natural color of the wood, we recommend our two-step maintenance clean.

Is it worth sealing a deck?

Taking proper care of your wood deck is extremely important. Because decks have direct contact with the outdoor elements, wood decks need to be properly sealed and waterproofed. If you haven't sealed and waterproofed your deck, we highly recommend you invest.

Is it better to seal or stain a wood deck?

Staining a new deck will provide a more uniform color or tone to the wood, while sealing will help maintain the natural color. However, wood that is sealed will still fade over time but will continue to show the natural wood grain.

How do you tell if your deck needs sealed?

When to Seal or Stain a New Wood Deck

Should I water seal my deck?

For most decks, sealing once each year is a good rule of thumb. Depending on the condition of your deck this can be adjusted, but keep in mind that you should never go beyond three years maximum before re-sealing and staining.

How much does deck sealing cost?

Cost to Seal a Deck

Sealing a deck costs $906 or typically between $551 and $1,293. You'll pay $0.75 to $4 per square foot for both materials and labor. Labor alone makes up 50% to 75% of the total price. Cost factors include regional worker rates, complexity, size, prep needs and accessibility.

What happens if you don't seal stained wood?

What happens if you don't seal stained wood? If you leave stained wood without a sealer on top, it will gradually lose its moisture content and dry out. Over time, the wood may look dull and lifeless as the stain wears out due to the lack of wood sealing and protection.

Do you need to apply a sealer after staining a deck?

Applying a clear sealer or polyurethane over a deck stain will cause more problems than it is worth. If you want a clear finish then you can strip off any old stain and start fresh with bare wood. Then you can apply a clear sealer if that is the look you are going for.

What is the best way to protect a wood deck?

The best preventative measure you can take to protect your wooden deck is to use wood sealant. Clear wood sealants are a great way to maintain the natural beauty and wood grain while still preventing damage from rot, mold, and other weathering.

Do I need to seal my deck every year?

When Should I Reseal My Deck? You should reapply wood sealer at least every three years. In many cases, you need to seal a wood deck once a year. The more foot traffic and sun exposure your deck gets, the more often you need to apply deck sealant.

How do I keep my wood deck from rotting?

Boric acid (borate) is one of the most effective fungicides for use in treating wood rot. It can be applied to wood during construction to prevent future rot, or as a treatment to stop an active decay fungus from growing.

Should you treat a new deck?

Brand new decking needs to left alone to weather naturally so that all the pre-treatment has eroded, ready to be oiled. We recommend you wait around six months for it to be fully eroded. Once you've waited for the coating to erode, treat your new decking as normal with oil or stain.

Can you put untreated wood outside?

Chemical Protections. Even though natural weather-resistant wood is the best choice for outdoor exposure, at some point it becomes vulnerable to decay. The only way to properly use untreated wood of any type outside is with the addition of water-repellent preservatives, sealer or paint that contain UV protection.

What is the average lifespan of a deck?

Traditional wood deck: Typically 10 to 15 years. Capped composite: Industry experts agree these boards can last 25 to 30+ years. Capped polymer (the best of the best): Because of its superior material composition, capped polymer boards can last much longer, potentially 50 years or more.

Can I build a deck with untreated wood?

Yes, you can use untreated wood to build a deck, but not without preparing it first. You can't, of course, pressure treat it yourself, but you will need to seal; the wood and stain/paint it to ensure the wood is ready to take on the harsh external weather.

What is the best thing to seal a deck with?

What is the difference between wood stain and wood sealer?

Unlike sealers, stains penetrate into the wood. Like the name suggests, a wood stain contains pigments that physically change the wood's color. This gives the wood protection against harmful UV rays. Stains also have the same beneficial water-repelling qualities.

Do I need to seal pressure treated wood?

Although treated wood is protected against decay and termite attack, the application of a water-repellent sealer to all exposed wood surfaces is recommended upon completion of construction. This sealer will help control surface checking (splitting or cracking) and provide an attractive appearance.

Can you put Thompsons water seal over stain?

Yes, you can put Thompson water sealer over stained wood whether the stain is water or oil-based. But surface preparation is key. If the stain has completely dried and cured it's fine to apply sealer, but if there is still some moisture, applying the water seal over the stain might cause problems.

Is polyurethane necessary after staining?

While staining creates a rich, deep color that highlights natural wood grain, it does not provide long-term protection. Without a protective top coat, wood can be damaged easily due to contact with water, food, or sharp objects. A polyurethane top coat protects the wood from scratches, stains and water damage.

How much does it cost to stain a 12x12 deck?

A 12x12 deck costs $226 to $582 to stain when paying someone, or $59 to $176 to stain it yourself. A gallon of stain costs $20 to $50, which covers 200 to 300 square feet. Get free estimates from deck staining companies near you or view our deck stain cost calculator below.

How soon can you walk on a sealed deck?

In most cases a full body stain or acrylic deck finish will be dry to touch within an hour in dry, hot weather. After two hours you could take a chance and walk on it with shoes, though I'd recommend barefoot. After about 4 hours you should be able to safely walk on your deck.

How much does a gallon of deck sealer cover?

On average most deck stains cover 150-300 sq. ft. per gallon depending on the age, condition, and porosity of the wood.