Is it possible to achieve a ceiling/truss like this?

[Davidw]

Planning to build a 1.5-story house in the spring and have a question about the upstairs look, based on construction.

We want it to look something like the attached picture:


√ Open almost to the ridge (collar ties at about 2.4-2.5 and hidden ventilation in the ridge)
√ Open trusses with visible collar ties (want to do cool things with them; swings, uplights, etc.)
√ 0.9-1.2 high interior wall with no or minimal attic space.
√ Width interior wall to interior wall: about 6 m.

Instinctively, for those of you who know a bit about trusses, is it possible to achieve this?
(The house in the picture has almost the exact same width as our planned one, but with attic space.)

 

[huggan]

The truss you should have is the "ramverkstakstol" and the span is available at least up to 8 meters.

 

[Davidw]

Thank you huggan, but how dependent is the roof truss on the triangle that forms the "catwalk"?
Currently, the house is 6.7 m wide and 6 m internally both upstairs and downstairs – in other words, no allowance has been made for this triangle. I assume it is important for the roof truss? But if this is the only way, we might be willing to reduce the width of the upper floor, the question is just how much is required. None or a meter?

Or can another truss solve the catwalk problem?

 

[Davidw]

Is this perhaps what is needed?
http://www.vida.se/sv/travaror/sortiment/takstolar/sortiment/forhojd-ramverkstakstol/
Anyone who knows anything about them?

 

[KnockOnWood]

Is this possibly what is required?
[link]
Does anyone know anything about them?

That truss has so-called "raised wall plate", meaning the side walls become higher. On a narrow house, it looks a bit Pippi Longstockingish.

A note: A truss normally requires support in the middle, meaning in practice a load-bearing wall on the floor below, to prevent it from being too shaky.

Send an inquiry to a truss factory, like http://www.takstolsfabriken.se/ and present your requirements. Maybe you have a manufacturer closer to you. Google truss factory.

Trusses are a specialized construction detail where it's probably better to let someone knowledgeable do the calculations rather than guessing. They can quickly and easily calculate what is possible and give you a quote.

Good luck! If you get it like in the picture, it will look great! Wonderful space!