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20 Best Waterproofing For Decks (2022 Updated)

Waterproofing for decks is a process that involves applying a waterproof coating to the surface of the deck in order to protect it from water damage. Waterproofing can help to prolong the life of your deck by preventing water from seeping into the wood and causing rot or mold.

It is important to note that waterproofing is not a replacement for regular maintenance and care of your deck. You should still clean and stain your deck on a regular basis in order to keep it looking its best.

20 Best Waterproofing For Decks

Product Image Product Name Features Price

Seal-Once Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon & Bronze Cedar

  • 1 Gallon

Thompsons Waterseal 21802 VOC Wood Protector, 1.2-Gallon, Clear

  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompsons Water Seal

Thompson's WaterSeal Clear Multi-Surface Waterproofer – 12 oz spray bottle

  • Size: 12 ounce
  • Approximate Coverage: 50 Sq. Ft/Can
  • Prevents Water Damage

Thompson's Waterseal Semi-Transparent Natural Cedar Waterproofing Wood Stain and Sealer 1 Gal

  • Durable Protection from Water & Sun Damage
  • Year-Round Protection in Just One Coat
  • Enhances Wood Grain

Flood Cwf-uv Penetrating Wood Finish, Natural, Size: 1 gal

  • Oil-Based Finish Ideal For Newer , Less Weathered Wood
  • Adds Minimal Color And Highlights The Natural Wood Grain
  • Penetrates And Protects Against Moisture And Sun Damage , Resists Mildew

IPE Oil Hardwood Deck Finish

  • 250

Olympic Waterguard 1 gal. Clear Multi-Surface Waterproofing Sealant

  • Penetrates and protects against water damager
  • Provides a mildew resistant coating
  • Simple cleanup with soap and water

Thompson's Waterseal Multi-Surface Waterproofer, Clear, 5 Gallon

  • This item is Thompson’s Multi-Surface Water seal Voc 5 Gl
  • Used For Painting Supplies, Caulk & Sealants Accessories
  • The product is manufactured in United States

Ready Seal 100 Exterior Wood Stain and Sealer, 1 Gallon, Clear

  • 1 Gal

Duckback Superdeck VOC Transparent Exterior Stain

  • Super deck, gallon, redwood, exterior transparent stain Oil for decking or siding, VOC 250 okay Ca
  • Adds a great value
  • Manufactured in United States

Ronseal DPNO5L Decking Protector Natural Oak 5 Litre

  • A water-based, wax-enriched decking protector for pre-treated decking
  • Medium build offers summer long performance
  • Excellent water repellency properties
Seal-Once Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon & Bronze Cedar
  • 1 Gallon
Thompsons Waterseal 21802 VOC Wood Protector, 1.2-Gallon, Clear
  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompsons Water Seal
Thompson's WaterSeal Clear Multi-Surface Waterproofer – 12 oz spray bottle
  • Size: 12 ounce
  • Approximate Coverage: 50 Sq. Ft/Can
  • Prevents Water Damage
Thompson's Waterseal Semi-Transparent Natural Cedar Waterproofing Wood Stain and Sealer 1 Gal
  • Durable Protection from Water & Sun Damage
  • Year-Round Protection in Just One Coat
  • Enhances Wood Grain
Flood Cwf-uv Penetrating Wood Finish, Natural, Size: 1 gal
  • Oil-Based Finish Ideal For Newer , Less Weathered Wood
  • Adds Minimal Color And Highlights The Natural Wood Grain
  • Penetrates And Protects Against Moisture And Sun Damage , Resists Mildew
IPE Oil Hardwood Deck Finish
  • 250
Olympic Waterguard 1 gal. Clear Multi-Surface Waterproofing Sealant
  • Penetrates and protects against water damager
  • Provides a mildew resistant coating
  • Simple cleanup with soap and water
Thompson's Waterseal Multi-Surface Waterproofer, Clear, 5 Gallon
  • This item is Thompson’s Multi-Surface Water seal Voc 5 Gl
  • Used For Painting Supplies, Caulk & Sealants Accessories
  • The product is manufactured in United States
Ready Seal 100 Exterior Wood Stain and Sealer, 1 Gallon, Clear
  • 1 Gal
Duckback Superdeck VOC Transparent Exterior Stain
  • Super deck, gallon, redwood, exterior transparent stain Oil for decking or siding, VOC 250 okay Ca
  • Adds a great value
  • Manufactured in United States
Ronseal DPNO5L Decking Protector Natural Oak 5 Litre
  • A water-based, wax-enriched decking protector for pre-treated decking
  • Medium build offers summer long performance
  • Excellent water repellency properties

1. Seal-Once Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon & Bronze Cedar

Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Bronze Cedar

  • 1 Gallon

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Amazon.com – Seller

Product Details

Specifications

Details
Surface Recommendation Wood
Coating Description Water-based

2. Thompsons Waterseal 21802 VOC Wood Protector, 1.2-Gallon, Clear

Thompsons Waterseal 21802 VOC Wood Protector, 1.2-Gallon, Clear

  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompsons Water Seal
  • Item Dimensions: 4.1”L x 6.6”W x 11.0”H

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Amazon.com – Seller
eBay
Walmart
Fred Meyer

Product Details

Specifications

Details
Container Size 1 GALLON
Application Method Brush Pad Roller Spray
Product Type Sealant
Color Clear
Product Weight 9.6500 lb

3. Thompson’s WaterSeal Clear Multi-Surface Waterproofer – 12 oz spray bottle

Thompson's WaterSeal Clear Multi-Surface Waterproofer - 12 oz spray bottle

  • Size: 12 ounce
  • Approximate Coverage: 50 Sq. Ft/Can
  • Prevents Water Damage
  • Beads and Waterproofs
  • Allows Wood to Gray Naturally

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Amazon.com – Seller
Walmart
Lowe’s
Ace Hardware

Product Details

Specifications

Details
Base Type Water-Based
Indoor or Outdoor Outdoor
Product Type Multi-Surface Waterproofer
Paintable Yes
Transparency Fully-Transparent

Reviews From Real Customers

Mt

4. Thompson’s Waterseal Transparent Acorn Brown Waterproofing Wood Stain and Sealer 5 Gal

Thompson's Waterseal Transparent Acorn Brown Waterproofing Wood Stain and Sealer 5 Gal

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Amazon
eBay – max_warehouse
Walmart
Life and Home

Product Details

Specifications

Details
Coverage Area 1375 sq ft
Tintable No
Transparency Transparent
Product Type Waterproofing Wood Stain and Sealer
Water Repellent Yes

Reviews From Real Customers

Dibee2
cinta
sukoshi47

5. Thompson’s Waterseal Semi-Transparent Natural Cedar Waterproofing Wood Stain and Sealer 1 Gal

Thompson's Waterseal Semi-Transparent Natural Cedar Waterproofing Wood Stain and Sealer 1 Gal

  • Durable Protection from Water & Sun Damage
  • Year-Round Protection in Just One Coat
  • Enhances Wood Grain
  • Guaranteed 5 Years on Decks, 7 Years on Fences and Siding
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

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Amazon
Walmart
Lowe’s
Ace Hardware

Product Details

Specifications

Details
For use on decks, fencing and siding
For Use with Siding yes
For Use with Decking yes
Furniture Ready 24 hours
UV Protection yes

6. 5 gal. Natural Clear Transparent Waterproofing Exterior Wood Finish

5 gal. Natural Clear Transparent Waterproofing Exterior Wood Finish

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Amazon
eBay – kingtazietoolsandhomegoods
Home Depot
Bonanza – Kingtazie’s Tools and Home Goods

Product Details

Specifications

Details
Purchase protection Bonanza Buyer Protection Pledge
Item traits 2.0
Transparency Transparent
Application Method Brush,Paint Sprayer,Roller
Dry to touch (min) 60

7. BEHR DECKplus 1 gal. Natural Clear Transparent Waterproofing Exterior Wood Finish

BEHR DECKplus 1 gal. Natural Clear Transparent Waterproofing Exterior Wood Finish

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Amazon
Home Depot

Product Details

Specifications

Details
Transparency Transparent
Container Size 1 Gallon
Application Method Brush,Paint Sprayer,Roller
Color/Finish Natural
Dry to touch (min.) 60

8. Flood Cwf-uv Penetrating Wood Finish, Natural, Size: 1 gal

Flood Cwf-uv Penetrating Wood Finish, Natural, Size: 1 gal

  • Oil-Based Finish Ideal For Newer , Less Weathered Wood
  • Adds Minimal Color And Highlights The Natural Wood Grain
  • Penetrates And Protects Against Moisture And Sun Damage , Resists Mildew
  • Tools Clean Easily With Soap And Water
  • Mfg #409163 1 Gallon Flood CWF-UV

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Amazon
eBay
Walmart
Home Depot

Product Details

Reviews From Real Customers

Jim-CNY

9. IPE Oil Hardwood Deck Finish

IPE Oil Hardwood Deck Finish

  • 250

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Amazon
eBay
Walmart – The Stain Depot
DIY Home Center

Product Details

Specifications

Details
Transparency Semi-Transparent
Container Size 1 Gallon
Sheen Satin
Coverage Area (sq. ft.) 300
Application Method Brush,Cloth,Roller

Reviews From Real Customers

Andrew S.
Linda R.
Amy O.

10. Olympic Waterguard 1 gal. Clear Multi-Surface Waterproofing Sealant

Olympic Waterguard 1 gal. Clear Multi-Surface Waterproofing Sealant

  • Penetrates and protects against water damager
  • Provides a mildew resistant coating
  • Simple cleanup with soap and water

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Amazon
Walmart – UnbeatableSale

Product Details

Specifications

Details
Color/Finish Clear
Recommended Number of Coats 1
Vertical/Horizontal Vertical / Horizontal
Minimum Optimal Temperature (F) 50
Interior/Exterior Exterior

11. Thompson’s Waterseal Multi-Surface Waterproofer, Clear, 5 Gallon

Thompson's Waterseal Multi-Surface Waterproofer, Clear, 5 Gallon

  • This item is Thompson’s Multi-Surface Water seal Voc 5 Gl
  • Used For Painting Supplies, Caulk & Sealants Accessories
  • The product is manufactured in United States

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Amazon
eBay – unbeatablesales
Walmart
Lowe’s

Product Details

Specifications

Details
Product Type Multi-Surface Waterproofer
Base Type Water-Based
Indoor or Outdoor Outdoor
Full Cure Time 24 hr
Container Size 5 gal

Reviews From Real Customers

NickFromKiteGeorgia
Dw54
harold

12. Thompson’s Waterseal TH.041831-16 Waterproofing Stain & Sealer, Gallon

Thompson's Waterseal TH.041831-16 Waterproofing Stain & Sealer, Gallon

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Amazon
Walmart

Product Details

13. Deck-O-Seal Pool Deck Sealant Gray 96 oz. 4701032 – 2 Pack

Deck-O-Seal Pool Deck Sealant Gray 96 oz. 4701032 - 2 Pack

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Amazon
Pool Supply Unlimited

Product Details

Reviews From Real Customers

H. K.
Kevin S.
J. B.

14. 1 qt. #T-330 Redwood Transparent Waterproofing Exterior Wood Finish

1 qt. #T-330 Redwood Transparent Waterproofing Exterior Wood Finish

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Amazon
eBay – treehousedeals2016
Home Depot

Product Details

Specifications

Details
Transparency Transparent
Container Size 1 Quart
Application Method Brush,Paint Sprayer,Roller
Color/Finish Redwood
Dry to touch (min.) 120 min

15. Ready Seal 100 Exterior Wood Stain and Sealer, 1 Gallon, Clear

Ready Seal 100 Exterior Wood Stain and Sealer, 1 Gallon, Clear

  • 1 Gal

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Amazon
eBay
Walmart
Paint Supply

Product Details

Specifications

Details
Dry to Touch 60 min
Transparency Semi-Transparent
Product Type Penetrating Wood Stain/Sealer
Color Clear
UV Resistant No

Reviews From Real Customers

Schyler
BugginOut
Kaye Cary

16. Thompsons Waterseal Wood Sealer Clear 1.2gal

Thompsons Waterseal Wood Sealer Clear 1.2gal

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Amazon
eBay – ronshomeandhardware
Ace Hardware
Sears

Product Details

Specifications

Details
Base Type Oil-Based
Container Size 1.2 gal
Indoor or Outdoor Outdoor
Full Cure Time 48 hr
Time Before Recoating 2 hr

17. Duckback Superdeck VOC Transparent Exterior Stain

Duckback Superdeck VOC Transparent Exterior Stain

  • Super deck, gallon, redwood, exterior transparent stain Oil for decking or siding, VOC 250 okay Ca
  • Adds a great value
  • Manufactured in United States
  • Super deck Gallon Redwood Exterior Transparent Stain
  • One coat application that imparts a freshly finished look for years

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Amazon
Close Lumber

Product Details

Specifications

Details
Surface Recommendation Wood
Item Dimensions LxWxH 7 x 7 x 7.56 inches
Recommended Uses For Product Exterior
Opacity Transparent
CPSIA Cautionary Statement No Warning Applicable

Reviews From Real Customers

eddie1351
bennklein_0
wreckram

18. New Thompsons Waterseal 043841-16 Waterproofing Stain, Solid, Acorn Brown, 1-Gal,Each

New Thompsons Waterseal 043841-16 Waterproofing Stain, Solid, Acorn Brown, 1-Gal,Each

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Walmart – Johnson Pac Wholesale

Product Details

19. BEHR Premium 1 gal. #SC-102 Slate Solid Color Waterproofing Exterior Wood Stain and Sealer, Grey

BEHR Premium 1 gal. #SC-102 Slate Solid Color Waterproofing Exterior Wood Stain and Sealer, Grey

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Home Depot

Product Details

Specifications

Details
Transparency Solid
Container Size 1 Gallon
Application Method Brush,Paint Sprayer,Roller
Color/Finish Slate
Dry to touch (min.) 120 min

Reviews From Real Customers

714racer
K Mac
Retired builder

20. Ronseal DPNO5L Decking Protector Natural Oak 5 Litre

Ronseal DPNO5L Decking Protector Natural Oak 5 Litre

  • A water-based, wax-enriched decking protector for pre-treated decking
  • Medium build offers summer long performance
  • Excellent water repellency properties
  • Helps prevent wood swelling, cracking, warping
  • UV resistant to protect the colour of decking

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bigamart.com

Product Details

Specifications

Details
dimensions ‎29.01 x 11 x 18.01 cm; 1.55 Kilograms

Reviews From Real Customers

DuncanS
Gary in Northants
Andrew

Conclusion

There are a few things to consider when waterproofing a deck. The first is the type of decking material you are using. If you are using pressure-treated lumber, you will need to use a water-resistant sealer on the lumber before you install it.

If you are using composite decking, you may not need to seal it, but you should check with the manufacturer to be sure. The second thing to consider is the climate. If you live in an area with a lot of rain or snow, you will need to waterproof your deck more often than if you live in a dry climate.

The third thing to consider is the amount of traffic your deck gets. If you have a lot of people walking on your deck, you will need to waterproof it more often than if it is only used occasionally.

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