SKU: 84500557372

Walther Strong Deck Tape - Joist Protection Tape

Sale price$19.84 Regular price$22.04
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Description

Walther Strong Deck Tape - Joist Protection TapeWalther Strong Deck Tape is a self adhesive joist protection tape applied directly to decking subframes and joists to create a watertight barrier against moisture, rot and weathering. Rated for a service life of up to 50 years, it is available in 50mm and 100mm widths to suit different subframe layouts. Specifications Brand Walther Strong Material Recycled and sustainable materials, non butyl UV Stability Fully UV stable Width Options 50mm, 100mm Roll

Walther Strong Deck Tape is a self-adhesive joist protection tape applied directly to decking subframes and joists to create a watertight barrier against moisture, rot and weathering. Rated for a service life of up to 50 years, it is available in 50mm and 100mm widths to suit different subframe layouts.

Specifications

Brand Walther Strong
Material Recycled and sustainable materials, non-butyl
UV Stability Fully UV stable
Width Options 50mm, 100mm
Roll Length 20 metres
Application Surface Timber joists and decking substructure
Use Class External, above-ground decking subframe

What it is used for

  • Protecting timber joists and bearers on outdoor decking subframes from water ingress and moisture rot
  • Creating a watertight seal under composite decking boards where the fixing screws pass directly through the tape
  • Sealing the top face of treated timber deck substructures to extend service life in exposed UK climates
  • Providing a low-friction surface that allows composite or timber boards to slide easily into position during installation

Fitting and handling

Deck tape can be applied to damp timber and in sub-zero temperatures, making it practical on British building sites year-round. Simply peel and press the tape along the full length of each joist before laying boards - the tape self-seals around screw fixings as you drive them through, so no additional sealing is required at fixing points. Rolls can be overlapped without adding significant height to the subframe, and the tape is repositionable before final pressing so you can correct alignment without waste.

FAQ

Does deck tape work on treated timber joists?

Yes. Walther Strong Deck Tape adheres to treated and untreated timber, including damp timber, so it is compatible with pressure-treated C16 and C24 joists commonly used in UK decking subframes.

Which width should I choose - 50mm or 100mm?

The 50mm roll suits standard 47mm joists where you want edge-to-edge coverage with minimal overhang. The 100mm roll is better suited to wider bearers, doubled-up joists or situations where you want the tape to wrap slightly down the joist sides for added protection.

How long does deck tape last once applied?

Walther Strong Deck Tape is rated for up to 50 years of service life. It is fully UV stable, so exposure through gaps in the decking boards will not degrade the adhesive bond over time.

Nottage Timber Merchants stocks Walther Strong Deck Tape alongside a full range of decking boards and decking accessories, available for collection from our Bridgend yard or delivery across South Wales. Contact us to confirm next-day availability for your project.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 84500557372

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Nyx K
Chelsea, US
★★★★★ 5
Looks like the image
Color: 01 - Beige, Size: King (108" X 90")
Super happy with the purchase. I went with king size bed for my boyfriend and I, because in the past when we have bought queen size, it seems to just fit the top of my bed and not go over. Also my boyfriend like to hog the blankets so wanted the change to at least still have enough for me. This blanket is perfect for us, helps to keep us warm during the recent cold weather and feels so great against our skin. It feels luxurious, isnt super thin and quality seems great. As soon as we got it I washed it on the sensitive cycle with cold water. Then put it in for air dry in the dryer. It fluffed up by a lot, that I had to run it a couple more cycles and stopping it in between to pull it back out and rearrange it to make sure it was drying, since it would roll up. Near the end when it was almost dry. Not a single speck of lint. Nothing shed off this blanket while it dried, which was such a surprise for me. Hoping to invest in a few more in the future. Very happy with the purchase. It checks the marks for functionality, sleep quality and durability that I have seen for far. It would make a great gift and any moment I could suggest this blanket to a friend I would. I bought two of these for my twins as well to go over another cheaper warm blanket they already had, due to severe winter watch in my area. I wanted to make sure they had all the warmth they needed if power ever went out, thankfully it never did. They were kicking off their other blankets and choosing this one in their sleep over their other one.
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Reviewed in the United States on February 1, 2026
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grace allen
Los Angeles, US
★★★★★ 5
Nice throw.
Color: 01 - Beige, Size: Throw (50" X 60")
Really nice and pretty too. Very soft and warm. The weight of the throw is light but still it's warm. Turning out to be my favorite.
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Reviewed in the United States on March 23, 2026
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Pamela Elliott
Omaha, US
★★★★★ 5
Soft
Color: 01 - Beige, Size: King (108" X 90")
Super soft and cozy, keeps you warm
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Reviewed in the United States on June 1, 2026
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artgurl1216
Omaha, US
★★★★★ 5
Yes!
Color: 01 - Beige, Size: Throw (50" X 60")
Perfection. Soft, cozy, pretty!
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Reviewed in the United States on April 24, 2026
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EuYu
Lake Worth, US
★★★★★ 4
Very Soft
Color: 03 - Dark Grey, Size: King (108" X 90")
Very soft. Holding up pretty well. I do with it was thicker and heavier.
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