Hello!
I need to reinforce the support for the floor joists in the living room of my house built around 1900. The room is 4350mm x 5300mm, and the current joists consist of beams approximately 120x150mm, 5 pieces, with a center-to-center distance of about 70-100cm. These run parallel to the longer side of the room, so the span of the old beams is 5300mm. There's a bit of sag... On the upper floor, the incoming load is only the joists themselves + the living load. No walls or other heavy objects to support. I plan to support the whole thing with a substantial glulam beam on pillars. The glulam beam would then have a span of 4350mm, and the span of the floor joists would be halved (creating the joint in the middle of the room). Ideally, I don't want the beam to hang down too much in the living room since the ceiling height is only 2.4m. Preferably a beam no more than 225mm high. What thickness does the glulam beam need to handle the load? What is the maximum deflection the beam can have?
Thanks and thanks!
/Anna
I need to reinforce the support for the floor joists in the living room of my house built around 1900. The room is 4350mm x 5300mm, and the current joists consist of beams approximately 120x150mm, 5 pieces, with a center-to-center distance of about 70-100cm. These run parallel to the longer side of the room, so the span of the old beams is 5300mm. There's a bit of sag... On the upper floor, the incoming load is only the joists themselves + the living load. No walls or other heavy objects to support. I plan to support the whole thing with a substantial glulam beam on pillars. The glulam beam would then have a span of 4350mm, and the span of the floor joists would be halved (creating the joint in the middle of the room). Ideally, I don't want the beam to hang down too much in the living room since the ceiling height is only 2.4m. Preferably a beam no more than 225mm high. What thickness does the glulam beam need to handle the load? What is the maximum deflection the beam can have?
Thanks and thanks!
/Anna
Construction veteran
· 2 741 posts
With a low construction height, there are also steel beams that are stronger in relation to the height.
Of course, that's true! However, my impression is that they are incredibly cumbersome to install, but that might just be prejudice on my part. Do you have any idea about the dimensions one would need?
/Anna
/Anna