A word of warning - a 5m beam will be really heavy - like very very heavy. Weight could be an issue indoors - like the whole thing disappearing through the floor boards! Good builder and engineer may have an easier solution. Unfortunately, I am neither.
My experience of one 3m ish beam gives me and my builder nightmares - trying to get it to ceiling height was a ‘challenge’. My builder still mentions the danger now.
The builder who we've had doing stuff took a couple of floorboards up and just put the props on the ground. I think a 5m beam was about 250kg, him (2m tall big unit) and little whippet of a helper got it up over a 10ft wall and up to ceiling height without any difficulty apparently.
A word of warning - a 5m beam will be really heavy - like very very heavy. Weight could be an issue indoors - like the whole thing disappearing through the floor boards! Good builder and engineer may have an easier solution. Unfortunately, I am neither.
My experience of one 3m ish beam gives me and my builder nightmares - trying to get it to ceiling height was a ‘challenge’. My builder still mentions the danger now.