Thank you. That all sounds sensible and within my competence! I'm going to have a crack in August when funds permit. I'll post an update in due course.
Thanks for your response.
To be honest, I don't know if the lighter joists are original - I just made that assumption because there were two of them, suggesting that the other six sides were the new additions. This stairwell was added some time after the house was built.
If I understood...
Hi folks. Grateful for advice on how to reinstall the floor once I've got rid of this spiral staircase please? It's the structural detail I'm most interested in..
The opening is 120cm in diameter. The aperture has been formed in an octagon, in which two sides are constituted by the main floor...