Removing internal walls of outhouse

Unfortunately I cannot give you a direct answer until I have seen the job but I would advise to consult a structural engineer who can give you a solid answer and this may be benefactor given that you may also need to contact the council for your intended alterations to your property which may involve your neighbors property or boundaries.

Hello, Before getting a proper answer, one has to know the way they used to build such structures, why and their costs, but before getting too much involved in the history of such structures, just remember this: These structures, where built sometime over weekends, and as cheap as possible to house anything else but living permanent conditions (due to their single brick construction). The correct approach to this issue is to have engage the services of a Structural Engineer, to inspect and advice you, however: Based on my 28 years in this game and my suggestion to you is that the possibility of such wall supporting the above concrete structure is 85%, (remember they had to be built economically, thus any support beneath such concrete slab as support, might have been used. I am sure the structural engineer ''will want to sleep peacefully at night'' as the saying goes and my advice to you will be as follows: Rather temp. support such roof slab with props (jacks), remove the wall, and have an RSJ install on concrete pad stones exactly where the demolished wall was once, then cock the small gap between RSJ and underside of slab with dry sand/cement mixture as tight as possible, wait for such mixture to dry properly, and only then remove the props/jacks. The size and weight of such RSJ, is best to speak to the engineer. I hope all this helps, and please let me know if you have any further questions to ask. Kind regards and good luck. Gus Barbero Gus Designs Ltd