Securing decking posts

Soldato
Joined
13 Aug 2004
Posts
8,042
Location
Newhaven, Sussex.
How would you go about securing down some upright posts for decking?

There's a bed of hardcore there from the existing patio and don't fancy digging it out. Could I secure some post supports into concrete blocks and bed these down?

[edit]
Alternatively I could build it slightly bigger over the grass and concrete in several posts.
 
Last edited:
Associate
Joined
11 Aug 2015
Posts
436
Dig down 50cm, width 30cm. 5cm of gravel in the bottom of the hole, put post in, fill with postcrete (around 5 bags per hole) and spray with hosepipe.

Jobs a good un.
5 bags per hole is far too much - how big are your holes! Our bags are half the size of a bag of multifinish and 1 bag per hole is ample.
 
Soldato
OP
Joined
13 Aug 2004
Posts
8,042
Location
Newhaven, Sussex.
Thanks for the replies guys. I'll go with a row of posts concreted in to stop sideways movement, the others I can rest onto some slabs.

It's ~4m wide x 3m deep all ground level. I think I will do the first 4 going across concreted in, it's just to stop any potential sideways movement.
 
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