Skip links
How To Seal Your Deck

How to seal your deck: A step-by-step guide

Decks make house interiors beautiful and visually pleasing, but they start looking worse when exposed to the elements over time. They begin having discoloration, warping, or even rot. But don’t worry—there’s a simple way to rejuvenate your deck and protect it from all the exposure. Deck Sealing gives protective armor to your deck against nature’s harsh elements. The wooden deck sealer enhances your deck’s appearance and expands its lifespan. Know the step-by-step guide to ensure your deck sealing job is done correctly.

How To Seal Deck

Why Seal Your Deck?

Protecting Your Investment

A wooden deck is a significant investment, and sealing it is an intelligent way to protect that investment. You can always think of deck sealer as a sunscreen. It shields the wood from harmful UV rays, rain, and temperature changes.

Preventing Damage

Wood is vulnerable to moisture, and without a reliable wooden deck sealer, it can lead to wrapping, cracking, and rotting. Sealing a deck prevents water from entering the wood and ensures its long-term good condition.

Enhancing Appearance

Using a good deck sealer enhances the natural beauty of the wood, giving it a rich and polished appearance. A sealer for wooden decks prevents the wood from turning gray and dull over time.

Types of Deck Sealers

● Water-Based Sealers

Water-based wooden deck sealers are easy to apply and clean up. They quickly dry and are less harmful to the environment. However, there is only one con to these deck sealers: they may require more frequent reapplication in a month or two.

● Oil-Based Sealers

Oil-based wooden deck sealers penetrate deeper into the wood and provide longer-lasting protection. They are excellent for resisting water and exposure to UV rays, but the only difficulty with these sealers is that they take longer to dry and can be harder to clean up.

● Clear Sealers

Clear wooden deck sealers give wood a natural look, allowing its beauty to shine through. They offer protection without altering the deck’s color.

● Tinted Sealers

Tinted wooden deck sealers add color to your deck. It enhances the appearance of the deck while providing protection. They also help hide the imperfections and give the deck a uniform look.

Choosing the Best Sealer for Your Wood Deck

Hemp Shield Deck Sealer

Selecting the suitable wooden deck sealer for sealing a deck depends on the needs and preferences. Let’s look at some of the factors to consider when choosing the best sealer for your wood deck:

1. Wood Type

Different types of wood react differently to other wooden sealers. For example, cedar and redwood have natural oils and may require a specific type of wood sealer.

2. Climate

Choosing the suitable wood sealer for your deck wood protection depends highly on the weather conditions. If you live in a region with harsh weather conditions, you’ll need a sealer that offers protection against UV rays and moisture.

3. Desired Appearance

While choosing the wood sealer, consider the choice between a clear finish deck that showcases the wood’s natural beauty or a tinted finish that adds color to the wooden deck.

4. Durability

Look for a sealer with long-lasting protection, mainly when you use your deck regularly or for various purposes.

Preparing Your Deck for Sealing

Preparation is critical to a successful sealing job. Here’s how to get your deck ready:

How To Seal Deck Step By Step guide


Clean your deck thoroughly to remove dirt, mold, and mildew. You can use a commercial deck cleaner or a mixture of water and mild detergent. A power washer might be necessary for stubborn stains.


Inspect your deck for any damage, such as loose boards or nails, and repair them before sealing. Sand any rough spots to ensure a smooth surface.


Allow your deck to dry completely after cleaning. Moisture can prevent the sealer from adhering correctly, so make sure the wood is thoroughly dry before proceeding.

Step-by-Step Guide to Sealing a Deck

Step 1: Choose Your Sealer

Select the reliable and best sealer for wood deck that suits your needs and gives deck wood protection.

Step 2: Gather Your Tools

You’ll need a brush, roller, or sprayer to apply the sealer. Make sure you have protective gear like gloves and safety glasses.

Step 3: Apply the Sealer

Start applying the sealer from one end of the deck, working your way across the boards. Use even strokes and cover all surfaces, including edges and gaps between boards.

Step 4: Let It Dry

Allow the sealer to dry according to the manufacturer’s instructions. The sealer usually takes 24 to 48 hours. You can also apply the second coat for extra protection. This step is optional, but if you consider it, use it once the first coat is completely dry.

Common Mistakes to Avoid When Sealing a Deck

Skipping the Cleaning Step

When sealing a deck, never miss out on the cleaning step. Applying sealer to a dirty deck traps dirt and debris and leads to a poor finish.

Not Allowing Enough Drying Time

If you don’t let the deck dry thoroughly after cleaning or between coats, the sealer may not adhere correctly.

Applying Too Thick a Coat

A thick coat can lead to pooling and uneven drying. For a smooth finish, it’s better to apply multiple thin coats.

How Often Should You Seal Your Deck?

Annual Inspection, Inspect your deck annually to determine if it needs resealing. Look for signs of wear, such as water soaking into the wood or fading color. Every 1-3 Years. Generally, decks should be resealed every 1-3 years, depending on the type of sealer used and the environmental conditions.

Frequently Asked Questions

1. How long does a sealed deck last?

A properly and reliably sealed deck lasts up to 3 years before needing resealing. This depends on the sealer used and the area’s weather conditions.

2. Can I seal my deck if it’s been stained?

Yes, you can seal a stained deck. Just ensure the stain is fully dry and compatible with your chosen sealer.

3. What’s the best time of year to seal a deck?

The best time to seal a deck is during warm, dry weather, typically in late spring or early summer.

4. How can I tell if my deck needs resealing?

A simple water test can help. Sprinkle water on the deck; if it soaks in instead of beading up, it’s time to reseal.

5. Can I walk on my deck while the sealer is drying?

It’s best to avoid walking on the deck while the sealer is drying to ensure an even finish and avoid tracking dirt onto the wet sealer.

Parting Note

Sealing your deck is an essential step in maintaining its beauty and durability. With a suitable deck sealer and a little effort, you can protect your deck from the elements and enjoy it for years. Understand the process to achieve the best results. Ready to seal your deck? Pick up your deck sealer today and give it the protection your wooden deck deserves!