In article , "Roger"
says...
Has anyone used screwfix "Post Anchor Base" to secure raised decking posts?

They are much cheaper than the metpost type, 1.49 GBP compared to 4.50 GBP,
but do they give as solid a result.

http://www.screwfix.com/app/sfd/cat/...36841&id=56830

http://www.screwfix.com/app/sfd/cat/...36841&id=32806

They're only designed to withstand a vertical load, so you'll have to
make sure that some other part of the structure stops horizontal
movement. I imagine that the posts will be less likely to rot using
this sort of anchor.