How to replace brick pillar with steel?

[MattInQLD]

Hi everyone,

Need some advice.

As per the photos, I want to change the highlighted brick pillar to a steel post. Pure aesthetic.

The pillar holds a 75mm wide structural (load bearing) hardwood beam. The beam isn't attached the brick, its merely resting on top.

I got some advice from a builder that I could prop up the beam with an Acroprop, knock out the brick and replace with a 100mm steel post. Post would need to be atleast 900mm in the ground and have a plate or rebar on the bottom to help bite into the cement when poured.

I'm not sure what to do with the top. I think best option is to buy a post with an 'L' bracket and bolt into the beam. My only concern is that the beam looks like it has a twist in it, so it won't sit square to a square bracket.

Questions: 

Has anyone done something similar?

Should I modify the bracket to match the beam? *My brother-in-law is a qualified welder...so he will do the modification.

Is it too risky?

What have I not considered?

Thanks,

Maty

[MitchellMc]

Welcome to the Bunnings Workshop community @MattInQLD. It's terrific to have you join us, and many thanks for your question about replacing a pillar.

Replacing a brick pillar with a steel post is a task that involves critical structural considerations, making it advisable to hire a qualified professional to ensure safety and compliance. 

The twisted beam complicates the situation, and customising the bracket to match the beam’s shape could be a solution. However, the condition of the beam should be evaluated, as a significant twist might indicate warping or prior stress, which could require attention before replacing the pillar.

Several additional factors must be considered. The steel post and footing need to be properly designed to handle the load of the beam and the structure above it. Ground conditions must also be stable to ensure the post’s long-term stability.  Secure connections at both the top and bottom of the post are essential. Finally, ensure that the project complies with local building codes, as this may involve obtaining permits and scheduling inspections.

While replacing a load-bearing pillar carries risks, proper planning, professional input, and attention to detail can make the project successful. If you're uncertain about any aspect, consulting with a structural engineer is highly recommended to ensure the safety and integrity of your work.

Please let me know if you have any questions.

Mitchell
 

[Jason]

Hi @MattInQLD,

Let me also extend a very warm welcome to the Bunnings Workshop community.

I wonder whether you might take inspiration from this Hamptons-style verandah posts project by @emmajames and glad the brick instead? 

Another option could be to render the brick. 

Let us know - we would be more than happy to assist further.

Jason

[MattInQLD]

Thankyou Mitchell and Jason

I have a friend who can do the engineering work, so not concerned on that front.

I've considered cladding the brick, however the main problem is the visual bulk of the pillar. I'm training to make it so when you out of the house that the pool is more visible. The two pillars when looked at from the house are next to each other visually, so it cuts out almost 600mm of the view to the pool.