Easiest formula for calculating racking bracing for structural timber stud wall?

[hillbillydeluxe]

These racking formulas for bracing a stud wall or the amount of braces required is doing my head in!
Please advise which is the easiest formula for the amount of braces required for a small Bathroom we are self building, the dimensions are-
3.0m length x 1.2m wide x 2.7m wall height using 450mm wall stud spacings (timber)on concrete slab in wind rated are of 2 (n2).
The roof is a skillion roof, please advice on how many braces required at 45 degrees? Thanks in advance.

[old1955]

Welcome to the forum. I can’t help with your inquiry but I’m sure someone will be along to give advice.

Ross

[rwbuild]

Use sheet bracing, the walls 2700 high require a noggin at the 2400 join to nail the abutments to or use the 2745 long sheets. Don't forget to dyna bolt the bottom plates at the corners and each side of the door opening. https://www.bunnings.com.au/our-rang...lywood-bracing

[hillbillydeluxe]

Thanks after 6 hours of reading we are using metal braces at 45 degrees with straps on top and bottom plates. as an owner builder there should be a site like the cubic metres formula for concrete where you put in dimensions and it spits out what is required! cheers HD

[rwbuild]

https://www.blocklayer.com/

[rwbuild]

Strongly suggest you use the ply bracing, but it is your $'s

https://www.blocklayer.com/

[Beardy]

Thanks after 6 hours of reading we are using metal braces at 45 degrees with straps on top and bottom plates. as an owner builder there should be a site like the cubic metres formula for concrete where you put in dimensions and it spits out what is required! cheers HD

The information is available for those qualified to decipher it. Not having a go at you, just pointing out it is a profession.

A 45 degree metal brace on a 1.2m long wall is of no structural value to you and agree with Rays suggestion to use a sheet brace at least on that wall. If you want to use diagonal bracing on the larger walls the perforated strap with tensioners are much better than the angled version you cut into the frame

[rwbuild]

The angled version is now non compliant and illegal

[Beardy]

The angled version is now non compliant and illegal

I have never been a fan of it but didn’t know it was now illegal. I saw it being used on a new job earlier this year still, the certifier didn’t pick it up though

It has always amused me how in the ‘ old’ days you had a sling of timber and a box of 2 inch and 3 inch nails and you could build a house that stood the test of time
Now you have certifiers counting how many nails you put in a Teco grip and the plate washers on your slab fixings etc
how times have changed

[rwbuild]

I can relate to everything you say, but the preferred timber of yesteryear was good old hardwood, it had weight and all walls were 100mm (4")
Then came the greenies and the bean counters in the project home builders that dumbed down the process. I could rave on for ever about the pros and cons but that won't change much.
The reason the angled metal brace is now non compliant is the depth of the saw cut reduces the effective width of the stud ie: 90 becomes 70 and 70 becomes 50, its one of the regulations that actually makes sense.
The yanks have got it right, everything gets sheet bracing, the advantages go far beyond just the bracing aspect.