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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

  • Apprentice of the Year at the Association of Fencing Industries (AFI) Fencing Awards 2025
    Apprentice of the Year at the Association of Fencing Industries (AFI) Fencing Awards 2025November 17, 2025 - 2:01 pm
  • 2025 Chichester Christmas Tree supported by Knight Fencing
    Knight Fencing sponsors the Chichester Christmas treeNovember 13, 2025 - 1:02 pm
  • IT’S CHRISTMAS TOY APPEAL TIME!November 11, 2025 - 9:40 am
  • 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

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Mike L.
Very pleased with the service provided. The delivery was on time and the quality of the item was very good. I did have one damaged panel and when I raised the issue, they immediately arranged for a replacement panel to be sent. I dealt with Jade Wallace throughout the ordering and delivery process and she was excellent, keeping me informed and providing top notch customer service.
Toby E.
New side gate and panel fitted at the back garden. Good quality materials and the gate looks smashing.
Although it took a few weeks between accepting the quote and the work being done it was worth the wait. Used KF in the past and would do again.
Mrs C.
Great and efficient response to a post that needed replacing. Thank you Terry.
Graham P.
Knight fencing installed a field gate for me, great service at a sensible price, would definitely use again.
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Michael P.
Knight installed new fencing for my rear garden. Looks great and I am very pleased with their service.
Malcolm B.
In June 2025 excellent fitters Kevin and George from Knight installed these well made Iroko double gates.
joy E.
Thank you to Shane and the lads who recently erected my 2 metre fencing.
The lads worked hard even though the weather was against them.

Thanks again. I will definitely be using Knights fencing in the future.

Joy Edwards 😊
shaun C.
This is the 3rd time we have used Knight Fencing Ltd and I can’t recommend them highly enough.A quality product built by a courteus team.
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.
Gary C.
The guys did a great job replacing our worn out gates. The new gates look superb. I thoroughly recommend them.

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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

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Knight Fencing
Based on 61 reviews

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News, Tips and Advice

  • Apprentice of the Year at the Association of Fencing Industries (AFI) Fencing Awards 2025
    Apprentice of the Year at the Association of Fencing Industries (AFI) Fencing Awards 2025November 17, 2025 - 2:01 pm
  • 2025 Chichester Christmas Tree supported by Knight Fencing
    Knight Fencing sponsors the Chichester Christmas treeNovember 13, 2025 - 1:02 pm
  • IT’S CHRISTMAS TOY APPEAL TIME!November 11, 2025 - 9:40 am
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Link to: 5 top tips for effective weed control Link to: 5 top tips for effective weed control 5 top tips for effective weed controlLawn Link to: How to repair a lawn full of weeds Link to: How to repair a lawn full of weeds A photo of dandelion plant growing in amongst long green grassHow to repair a lawn full of weeds
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Knight Fencing
Based on 61 reviews