raised beds and gravel boards

[brooklynodog]

Hi there, sorry to go on about this (see earlier post) but my polytunnel comes on Monday and I want to get it right. Are 6x1 gravel boards substantial enough for raised beds in a tunnel? How do you fix them in place?

[esrikandan]

I'm using gravel boards for my raised beds. I cut down some 2x2 treated timber into shorter pieces (6" longer than the board) and screw the boards into the post, then gently hammer them into the ground.

Does that help?

[bendm]

Gravel boards will be fine,but you need to use more pegs than with thicker wood as they are prone to bowing out all over the place.Probably one every 60cm or so.