Thread: Boring hole vertically in post

It might be easier to get two 50 x 100 s and cut a 1m channel that will fit you existing posts in one end and then bolt these over the existing posts. Alternatively get the 100 x 100 posts and cut them up the middle and then do as the above which will give a better match at the join.

If the existing posts are 50mm steel tube, you could cut them off about 200 above the ground and use them as post anchors.

then you would only have to bore about 180mm into the end of your new posts

Yes cut them off is even better.

I would cut them off flush with the slab, then start fresh - bolt brackets to hold new posts to the slab....

Originally Posted by Toymaker Len

It might be easier to get two 50 x 100 s and cut a 1m channel that will fit you existing posts in one end and then bolt these over the existing posts. Alternatively get the 100 x 100 posts and cut them up the middle and then do as the above which will give a better match at the join.

Genius! Why did I not think of that. I will give that a shot and see how I go!

Originally Posted by Astrodog

I would cut them off flush with the slab, then start fresh - bolt brackets to hold new posts to the slab....

I was going to do that, using saddles, but as I will probably be changing part of the fence to a gate, I realised that the forces on a saddle will not cope with the weight of a gate

Originally Posted by ian

If the existing posts are 50mm steel tube, you could cut them off about 200 above the ground and use them as post anchors.

then you would only have to bore about 180mm into the end of your new posts

That is also a clever idea. I may try that one too.

Thanks Guys!!

Originally Posted by ian

If the existing posts are 50mm steel tube, you could cut them off about 200 above the ground and use them as post anchors.

then you would only have to bore about 180mm into the end of your new posts

Originally Posted by pwatt01

That is also a clever idea. I may try that one too.

Originally Posted by pwatt01

I was going to do that, using saddles, but as I will probably be changing part of the fence to a gate, I realised that the forces on a saddle will not cope with the weight of a gate

If you're thinking of installing a gate, it might be that none of your existing posts is suitable as an anchor for a 1.8m high gate

What are you planing to make your new 1.8m fence from?

Originally Posted by ian

If you're thinking of installing a gate, it might be that none of your existing posts is suitable as an anchor for a 1.8m high gate

There will be definitely be one gate (about 1000 wide), but that will be attached to the house wall so will have lots of support there. The other gate(s), if I do them, will have some wheels on the bottom to reduce the load off the uprights.

Originally Posted by artful bodger

What are you planing to make your new 1.8m fence from?

Using 90x90 uprights with decking planks going across, spanning ~1.6m.

Digging out the posts may not be as hard as you think once you get stuck into it - a spike and post hole shovel does the job for me. Alternatively maybe hire a digger for that bit... Might open up more options for post placement and/or require fewer posts.

Originally Posted by AdamAnt

Digging out the posts may not be as hard as you think once you get stuck into it - a spike and post hole shovel does the job for me. Alternatively maybe hire a digger for that bit... Might open up more options for post placement and/or require fewer posts.

I was thinking that initially, but going through then redoing the slab, as well as not knowing how deep the concrete goes has made me look at other options. If needed I will go this path, but the ideas above look a lot easier and cheaper.

Using 90x90 uprights with decking planks going across, spanning ~1.6m.[/QUOTE]

Decking planks going across, spanning 1.6 m?
Do you mean just nailing them to the 90x90 uprights in a horizontal way, one on top of the other?
Or perhaps an upper and lower plank to which you will fix something like colourbond or similar in a vertical fashion?