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laying artificial grass on ridged decking

Fife59 Posts: 35 Forumite
First Anniversary First Post
HI folks

I have decking with ridges and want to lay artificial grass on it

I have been advised to lay plywood below the grass to stop the ridges showing through. How will that dry out will it not rot

or does the underlay stop it and is a better option


  • Farway
    Farway Posts: 13,212 Forumite
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    I think you would need Marine plywood, which is treated & presumably the "grass" is porous so the ply would dry out in summer
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  • twopenny
    twopenny Posts: 5,545 Forumite
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    Should really be marine ply with an underlay. Without I think you'll regret it as it will be like walking on wood and not lawn,

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