Fixing new rafters

[ladycrofter]

Wondering what people think is the best option.

I'm re-making an office ceiling for a friend. The office is built inside a warehouse, basically standard stud and plasterboard construction with it's own ceiling, The original "designers" and I use that term loosely, made the ceiling of 2x2 on 600 centres, then added various bits inside including a post to try and hold it up.

I have put up (above the ceiling) 8x2's on 600 centres running at right angles to the original 2x2's, fixed to the wall plates at either end and also with a heavy bracket to the middle 2x2. I had a cunning plan to run a string line inside the office along each new rafter and put honking great screws up the way. However, I am missing the rafters off and own and have to go up and down the ladder checking. So plan B is to fix it from above where I can be sure to hit the junction of every 2x2 and the new rafters.

So I am planning to use heavy angle brackets, but wondered how they compare to running metal strapping over each rafter, and along the 2x2, and up the next rafter. Once I get this done I don't want to have to go back up.

Thanks for reading and any advice.

 

[phillipe]

Wondering what people think is the best option.

I'm re-making an office ceiling for a friend. The office is built inside a warehouse, basically standard stud and plasterboard construction with it's own ceiling, The original "designers" and I use that term loosely, made the ceiling of 2x2 on 600 centres, then added various bits inside including a post to try and hold it up.

I have put up (above the ceiling) 8x2's on 600 centres running at right angles to the original 2x2's, fixed to the wall plates at either end and also with a heavy bracket to the middle 2x2. I had a cunning plan to run a string line inside the office along each new rafter and put honking great screws up the way. However, I am missing the rafters off and own and have to go up and down the ladder checking. So plan B is to fix it from above where I can be sure to hit the junction of every 2x2 and the new rafters.

So I am planning to use heavy angle brackets, but wondered how they compare to running metal strapping over each rafter, and along the 2x2, and up the next rafter. Once I get this done I don't want to have to go back up.

Thanks for reading and any advice.

What about joist hangers ?

 

[rob1]

put joist hangers upside down so the weight hangs off the 8 by 2s and screw into the side of the 2 by 2s

 

[ladycrofter]

Brilliant yes, I couldn't see how to turn them but I do now - thanks!

JOIST HANGERS 47 X 248MM 10 PACK

Screwfix - perfect size for 200x47 joist and then catch the 2x2. And I feel happier screwing into the sides of the 2x2's rather than the tops.

 

[phillipe]

Brilliant yes, I couldn't see how to turn them but I do now - thanks!

JOIST HANGERS 47 X 248MM 10 PACK

Screwfix - perfect size for 200x47 joist and then catch the 2x2. And I feel happier screwing into the sides of the 2x2's rather than the tops.

With hangers you are supposed to use nails ,screws will shear,nails will give a bitt

 

[ladycrofter]

Thanks @skinnyhoskins I noticed they come with square twist nails. That is interesting, and also welcome news, I am tired of walking along joists on my knees dragging a drill driver and boxes of screws. So will happily sit on my crawling board and hammer away.

 

[phillipe]

Thanks @skinnyhoskins I noticed they come with square twist nails. That is interesting, and also welcome news, I am tired of walking along joists on my knees dragging a drill driver and boxes of screws. So will happily sit on my crawling board and hammer away.

Nail in every hole ,you get the gist, keep up the good work

 

[dannewhouse]

aren't you supposed to work on 400 centres? ie 3 gaps to a 1200 board rather than 2 600mm? <probably makes no difference just what most seem to be?

 

[phillipe]

aren't you supposed to work on 400 centres? ie 3 gaps to a 1200 board rather than 2 600mm? <probably makes no difference just what most seem to be?

Every new build these days are 600 centres,and most will never see anything as big as a 8x2,me personally rather 400 centres

 

[designanddetail]

Usually yes, but if its just a ceiling there is no load or real weight

 

[Mur Huwcun]

With hangers you are supposed to use nails ,screws will shear,nails will give a bitt

Hangers? Very posh Offcut of a baton and notch the joists!!!!

 

[phillipe]

Hangers? Very posh Offcut of a baton and notch the joists!!!!

Cowboy,do it properly ,do it once

 

[Mur Huwcun]

Cowboy,do it properly ,dk it once

It was the way they were all done years ago. I was only mentioning it tongue in cheek anyhow!!!

 

[phillipe]

It was the way they were all done years ago. I was only mentioning it tongue in cheek anyhow!!!

Yes and they all sagged ,the battens split