Decking boards (Lye Valley OX3)

Hello everyone!
I am doing a little DIY project down at the allotment to build some new raised beds. Does anyone have any old decking they no longer need?
It doesn't need to be new and cosmetic condition isn't important, but it does need to be structurally sound and not completely rotten, as it will still need to hold together for the job. I also need boards to be at least 4ft long, as anything shorter is unlikely to be much use for the project.
I'm trying to reuse old materials where possible and save things from going to landfill. Let me know what you have, and I'll happily collect at a time that suits you.
Cheers! :::