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Making hole in false chimney breast bigger

Postby Dulapeep » Mon Apr 05, 2021 11:32 am

We want to make this hole taller to fit in a cast iron fireplace. The hole is boxed in with wood and I don't know what false chimney breasts are normally made of, can we just remove the wood and chip away at whatever is there?
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Simply Build It

Postby stoneyboy » Tue Apr 06, 2021 8:56 pm

Hi dulapeep
You can remove the ply liner - this is not strong enough to have any structural purpose. You will probably find a piece of angle iron across the top of the opening but there could also be a brick arch forming the top support. Suggest you hack off the plaster above the fireplace so you can see and decide how to proceed.
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