[Ian Robinson]

OK , been doing some head scratching and checking out what I have stashed in my garage rafters.

I've a couple of lengths of plastic pipe : (2m about 6" in OD and a 1.5m of 8" OD , left overs from other projects).

Now either of these would be OK as molds for making a reinforced concrete peir.

But is a concrete peir the best way to go ?

Is a steel peir better than a concrete one ? (one advantage I see straight away is that it can be moved or relocated if you move and it it bolted to a suitable concrete slab or concrete footing , but it will work out more expensive building - need someone to do the welding of top and bottom flanges and reinforcing gussetting for me.)