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How to stop weeds coming through your decking

Read our guide on how to stop weeds coming through your decking. A deck is a great place to relax with family and friends. But weeds coming through your decking will drive you nuts.

So, how can you avoid getting weeds under your deck and losing your cool in the summer? All you need to do is a bit of planning.

Get the weed control supplies you need to protect your decking now

5 tips on how to stop weeds rising through your decking

  1. Remove the grass. If your decking hasn’t been laid yet, remove or kill the grass in the area that it will go on. By doing so, weeds are less likely to become established and spread. Also, you’re less likely to have grass growing through your decking.
  1. Put down weed control fabric. Once you’ve removed the grass, the next step is to put down a layer of good-quality weed control fabric, such as Weedtex or Groundtex. It’s important to cover every inch of the ground where your deck will go. Leave a gap and it’s an open invitation to weeds to grow.
  1. Add an extra layer of protection. Once the weed control fabric is down and secured with landscaping pegs, the next step is to cover it with mulch or gravel. Put a good, thick layer down – both help keep the light out and suppress weeds and anything else that might grow.
  1. Wield the weed killer. Of course you might inherit a weed problem or not discover it until your deck is down. If this is the case, it’s worth getting the wield killer out and thoroughly treating the problem area. You will have to be persistent and it might take a while, but it could do the trick.
  1. Be vigilant. Whether you’re tackling the problems of weeds coming through your decking before or after installation, it always pays to keep an eye out for any weed growth and spend some time on a bit of maintenance around and below your decking if possible. Get to the weeds early!

Another tip for anyone dealing with weeds already growing through decking is to get the decking taken up. It might not be possible and it is a much bigger project, but once the decking is up, you can follow the first steps above and tackle the problem much more efficiently. If this isn’t an option, check out our top 5 tips for effective weed control.

Overall, it’s worth remembering that weeds can be maddeningly persistent and even the most thorough planning can sometimes come up short. But the more you do and the more you invest, the better the results will be.

We hope that the guide has given you ideas of  how to stop weeds coming through your decking.

Order your weed control fabric from our online store

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Latest News

  • Knight Fencing Delivers Hands-On Workshop at West Sussex Alternative Provision CentreJune 23, 2025 - 1:00 pm
  • Photo of Timber closeboard fencing and armco barrier installed by Knight Fencing at Salisbury Railway Station
    Salisbury Train Station Car Park – Commercial Fencing ProjectMay 1, 2025 - 3:12 pm
  • Liam & Lewis with their Fencing apprenticeship level 2 pass certificates
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  • bespoke railings and handrails at Gloucester Railway Station
    Knight Fencing improves accessibility at Gloucester Railway StationDecember 3, 2024 - 12:58 pm
  • Photo of Danny Knight, managing director of Knight Fencing Ltd inspiring the next generation at Selsey Academy Careers Fair 2024
    Fencing for the future: inspiring students in SelseyNovember 22, 2024 - 1:57 pm

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Shane H.
Always super helpful and professional. Couldn't fault them!
Ian V.
GREAT FENCING!!! We asked Knight Fencing to run 4ft 6"double closeboard with 18" close diamond trellis around our last property (in Bedhampton). This was because we saw what a great job they had done at one of our friend's gardens (in Southbourne). Then another friend saw what we had installed and Knight Fencing did the same for them at 6ft 6" around 3 sides of their back garden (also in Bedhampton). We then had the bottom of our garden re-fenced with 6ft 6" double closeboard when we first moved into our new property (in Purbrook). We are now ready to have the rest of the garden re-fenced and have no hesitation to call Knight Fencing again. Any time anyone has seen these 4 fencing jobs they only say what strong, professional and quality fencing it is.
Sarah H.
New garden gate, super service and lovely quality, am delighted with the result and many thanks to the team for their work, it looks great, thank you!
Simon S.
Always friendly and helpful
Competitive prices too
Theresa B.
Had new gate furniture installed on my gates, very pleased with the service from start to finish. Thank you Jade for keeping me updated.
Dee P.
Excellent service, good quality panels, and with free delivery worked out cheaper than Wickes!
Clare H.
We went by the reviews because we're new to the area and had no personal recommendations. The reviews are absolutely spot on. Very efficient, staff are great, the fence is brilliant, they left everything neat and tidy. Highly recommend.
Martin H.
quality of materials speedy delivery friendly service very reasonable prices👍😎
Gary T.
Always very helpfull adn good fencing.
Dominic J.
Had len and Paul at mine for 2 days they was amazing a true credit to the company

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Trusted, Accredited, and Committed to Excellence

Association of Fencing-Industries
DuraPost Trained Installer
SMAS Worksafe preferred supplier
Postsaver Approved Installer
AJS Training
Constructionline Gold Member
CLD approved installer
Checkatrade.com members
CHAS accreditation advanced
Alexandra recommened installer

Helpful Guides

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Knight Fencing
Based on 36 reviews

Locations

  • Fencing Contractors Brighton and Hove
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News, Tips and Advice

  • Knight Fencing Delivers Hands-On Workshop at West Sussex Alternative Provision CentreJune 23, 2025 - 1:00 pm
  • Photo of Timber closeboard fencing and armco barrier installed by Knight Fencing at Salisbury Railway Station
    Salisbury Train Station Car Park – Commercial Fencing ProjectMay 1, 2025 - 3:12 pm
  • Liam & Lewis with their Fencing apprenticeship level 2 pass certificates
    Knight Fencing students shine on new fencing apprenticeship schemeFebruary 26, 2025 - 12:46 pm
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Knight Fencing
Based on 36 reviews