Do I really need: Mason WIC or Dnsb ties ?

[sxx]

Hey there!

I'm wondering if I really need those Mason WIC or Dnsb ties to stabilize my inner structure (room within a room)?

My 4 walls' studs will be attached/nailed to each other and also to the floor.
Please note that the ceiling will be placed on top of those studs too.

I calculated that my walls will weigh between 90 and 100Kg per m2 (this including the ceiling weight).

Details about the construction can be found here:
http://www.johnlsayers.com/phpBB2/viewt ... =1&t=20670

Thanks in advance for your help

[Soundman2020]

If you build the room correctly, then you will not need sway braces.

Think of it this way: if you were to build this structure in the photo below, outside in your back yard, then you certainly would not need sway braces to keep it standing up straight!

timber-shed-SML-ENH.jpg

This is exactly the same structure that you will be building as your inner-leaf room: four sides and a ceiling.

So why does that shed stand up straight and strong, without falling over, and yet it has no sway braces or snubbers to keep it there? Because it is built correctly to do that! The framing and sheathing work together to provide the structural conditions to keep it standing.

Your room should be built the same way. The framing provides the basic structural support for gravity loads, and suitable sheathing provides the strength in the sheer plane.

- Stuart -

[sxx]

That's a good news!
I'll save some money there