Pier

[oshb5]

Hello

Iv been thinking about putting up a obs in the garden so going to put the pier in the ground first and build round it. Iv been offered a 4 1/2 foot length OD 4" dia steel tube but its only 1/8" wall thickness will it do? Im going to machine a aluminium head for the adjustment anyway its just if this tube would be strong enough?

thanks Andy

[steelfixer]

Hi Andy

My thoughts say anything is better than nothing.

It is a bit on the small side but if you fill it with concrete it will be a great start.

If at a later date you can get hold of a piece of 6 inch or 8 inch tube there is nothing stopping you dropping it over the top of this one.

This way you will not have to remove the small pier, just make sure the base is large enough to take a bigger pier in the future.

[Aoraki]

Agreed with the above, just something to remember though; it's diameter over wall thickness. By that i mean 200Ø tube and 3mm wall would be preferable over say 100Ø tube and 10mm wall.