Hi everyone,
First off, I apologize in advance for my limited experience and knowledge. I am a complete amateur and definitely not an architect or engineer. I’m trying to learn as I go, and I genuinely appreciate any patience or guidance.
I am currently designing a small cabin in Chief Architect and have run into an issue with my shed roof and wall heights that I cannot figure out.
Project specs:
- Cabin size: 30' x 16'
- Shed roof design
- Roof pitch: 1.5/12
- Intended wall heights:
- Low wall: 8'
- High wall: 10'
From my understanding, the math should work correctly:
- 16' span = 192"
- 192 ÷ 12 = 16
- 16 × 1.5" rise = 24" total rise
So unless I am misunderstanding something fundamental, a 1.5/12 pitch across 16' should naturally create approximately 2' of rise, meaning an 8' low wall and 10' high wall should be achievable.
However, in Chief Architect, I cannot seem to get the roof/walls to generate correctly.
What I have tried:
- Turned OFF “Flat Ceiling Over This Room”
- Set my top plate/wall height to 96"
- Set roof pitch to 1.5/12
The issue:
- My high wall ends up extending above and past the roof plane
- The generated wall height exceeds 10'
- One of the studs is showing around 121 13/16"
- The roof/wall intersection just looks incorrect overall
At this point, I suspect the issue is probably related to:
- Roof baseline settings
- Wall definitions
- Ceiling/roof relationships
- Or how Chief calculates automatic roof generation
rather than the roof geometry itself being impossible.
Could someone explain:
1. The proper way to set up a simple 8' to 10' shed roof in Chief Architect
2. Whether I should be adjusting baseline height instead of wall height
3. Why the high wall is extending past the roof plane
4. Whether my understanding of the roof math is correct
I would really appreciate any explanations, corrections, or guidance. I am still learning and trying to better understand both framing concepts and the software itself.
Premier x17 latest software version
Windows, nvidia gtx5050 8gb, 16gb ram, I5 2.20ghz
I will update this with plan/screenshots posting from mobile device
Thank you very much for your time.