How to cut galvanised steel garden bed posts?

[saphira_]

I have two garden beds that I want to get rid of. I used Galvanised Steel retaining wall posts on the corners and are deep inside with quickset cement. I have since filled the backyard and getting inside to break the concrete around the posts will be a lot of work, so I am planning to just dig smaller holes around the posts and cut them instead. Planning to put artificial turf on top. I probably shouldn't have used retaining wall posts for garden beds to start with.

What kind of tools I will need to cut them? (I couldn't find the exact product they are similar to this: https://www.bunnings.com.au/jack-50-x-450mm-galvanised-steel-retain-it-corner-post-upright-sleeper_p...)

Thanks in advance.

[EricL · Accepted solution]

Hello @saphira_ 

Welcome to the Bunnings Workshop community. It's sensational to have you join, and thanks for sharing your question about cutting steel garden bed posts.

In order to cut the steel posts, I suggest using an Angle Grinder in combination with a Steel Cutting Disc. If you decide to get this tool, I suggest speaking to the tool specialist at the store to make sure that the cutting disc you purchase is compatible with the angle grinder.

Another method is to use a Steel Hacksaw, it may take more time to cut the steel, but it is just as effective. 

Please remember to wear personal protection such as gloves, goggles and a mask when working on your project.

If you have any other questions we can help with, please let us know.

Eric

[saphira_]

Thanks Eric. I will get an angle grinder with a steel cutting disk as you suggested. Thanks again.

[WanRS]

Hi Eric, I'm looking to complete a similar task. Will a recip saw with metal cutting blade do the job? I'm a bit scared of using an angle grinder without a cutting guard because of a previous incident. I can't find a cutting guard for my Ozito grinder in store.

[JacobZ]

Hi @WanRS,

Welcome to the Bunnings Workshop community, it is fantastic to have you with us.

A reciprocating saw with one of these Diablo Steel Demon Reciprocating Saw Blades will have no trouble cutting through steel posts. Make sure you have a fully charged battery if you are using a battery-powered saw. I've used these blades to cut 50mm thick cast iron bars before. I was surprised by just how well it worked. 

Just make sure to wear gloves, ear and eye protection and long protective clothing while carrying out this work.

Also, if you'd like to explore getting a replacement guard for your angle grinder, head to the Special Orders desk at your local store with the model number of your grinder. They will be able to assist you with ordering a new guard.

Let me know if you have any further questions.

Jacob