ᐅ Garage Planning and Structural Considerations

Created on: 1 Mar 2015 10:59
H
hg6806
H
hg6806
1 Mar 2015 10:59
Good morning everyone,

I am finally finding time to start planning the garage. I want to build a double garage with a storage room, entirely made of wood. Approximately 9 meters wide (30 feet) and 6 meters long (20 feet).
It should have a 5-meter-wide (16 feet) sectional door. The door opening should be at least 1.9 meters high (6 feet 3 inches). The roof should match the house with a mono-pitched design, sloping upwards to the back, ideally with a minimum pitch of 15°.

Before I get comments like "consult a structural engineer," I first want to know if this is even feasible. The critical factor is the front height, so I don’t exceed the 3-meter (10 feet) maximum height at the midpoint towards the neighbor due to boundary building regulations.
Only if feasibility is confirmed would I consult a structural engineer. Otherwise, I would have to opt for a flat roof.

So, what load does the upper beam above the sectional door need to carry, and how do I calculate this to ensure the entire structure doesn’t become too tall? I’m also considering a double-T beam for this.

Best regards,
Tobi