Hey all,
I am just planning my knock through.
I have a nearly 7 meter wall to come out at the back of my house. There will be 4 beams - two large ones @ 5.3 meters long. One of which will support the inside leaf and one the outside leaf. The inside one sits under the 1st floor joists which run perpendicular. The outside one is slightly taller but both will be bolted together. The other two smaller beams which are 1.6 meters long will be plated onto the larger beams to extend over a smaller gap.
So I plan to use 12 props and some 3x3 timber as needles. The inside props will support the first floor joists which are built into the wall anyway. I will spread the load as much as I can under and above each prop and screw the 3x3s onto props and joists. I would then hope to use some block and tackle (attached to some beefed up needles) to help raise the beams most of the way to the pads.
So questions I have -
I am just planning my knock through.
I have a nearly 7 meter wall to come out at the back of my house. There will be 4 beams - two large ones @ 5.3 meters long. One of which will support the inside leaf and one the outside leaf. The inside one sits under the 1st floor joists which run perpendicular. The outside one is slightly taller but both will be bolted together. The other two smaller beams which are 1.6 meters long will be plated onto the larger beams to extend over a smaller gap.
So I plan to use 12 props and some 3x3 timber as needles. The inside props will support the first floor joists which are built into the wall anyway. I will spread the load as much as I can under and above each prop and screw the 3x3s onto props and joists. I would then hope to use some block and tackle (attached to some beefed up needles) to help raise the beams most of the way to the pads.
So questions I have -
- Does this sound OK? Any suggestions?
- Is it best to add morter to top of beam and push this up into the brickwork to the add slate under ends of beams? Or just sit in beams and push morter into gaps/joints?
- Should I take all of the wall down before adding beam or just take wall down where beam will go and knock rest down when beam is in place.