Hello. I have had the construction drawings made and the designer has drawn in 45x245, cc400 as the floor. The largest span is 5400. Now it's a bit difficult to get hold of such large dimensions, so my question is if anyone can say if it would be possible to reduce the dimension, possibly at the same time increasing to 70 in width?? The floor that will be laid is 35mm spruce and oak flooring.
Some innovation from Rundvik in Ångermanland:
Masinite Beams: https://www.masonitebeams.se/masonite-beams-laettbalk/sortiment/
Masinite Beams: https://www.masonitebeams.se/masonite-beams-laettbalk/sortiment/
Construction veteran
· Stockholm
· 340 posts
I think you should go through K to make it right. Suggest, for example, switching to Kerto or closer placement. Or some lightweight beam.
Maybe it's possible to add in a support beam to reduce spans? It could, for example, be an H-beam with the floor joist resting on the lower flange, meaning nothing sticks down.
Maybe it's possible to add in a support beam to reduce spans? It could, for example, be an H-beam with the floor joist resting on the lower flange, meaning nothing sticks down.
Can hardly be considered innovation anymore? They at least delivered the entire frame when I built my house a few years ago, including 300 mm floor beams. Light and affordable.M multix said:
There is something wrong, 5.4m is too long a span for that dimension. Check with the designer again to avoid any misunderstandings.
There must be a miscalculation. I would never accept the proposed dimension and c/c spacing with a 5.4 m span. It will be shaky and have significant deflection. Choose glulam, e.g., 90x225 on c/c 600 mm, instead. This is roughly equivalent to 45x300 in regular C 24 timber.