An 8/12 roof pitch — often described as “8 over 12” — is a steeper residential roof pitch commonly chosen for its dramatic appearance and excellent drainage. “8 over 12” means the roof rises 8 inches for every 12 inches of horizontal run. This equals an angle of about 33.69 degrees, giving homes a sharp, standout profile.
What Does an 8-12 Roof Pitch Represent?
With an 8/12 pitch, your roof gains 8 inches in height for every foot of horizontal distance. This translates to an angle of approximately 33.69 degrees and a slope of 66.67%. It’s a steeper pitch that performs exceptionally well in areas with heavy rain or snowfall.
- Pitch: 8/12 (or “8 over 12”)
- Angle in Degrees: 33.69°
- Slope Percentage: 66.67%
- Rafter Length (per 12 inches of run): Approximately 14.42 inches
Want to confirm your roof pitch? Use our roof slope calculator for quick and easy results.
Is an 8-12 Roof Pitch a Good Choice?
Yes — an 8/12 pitch is a great choice for homeowners looking for standout curb appeal and superior weather protection. It provides fast water and snow runoff, works well with many roofing materials, and adds strong visual character to any home.
- Excellent runoff for rain and snow-heavy climates
- Works well with shingles, metal roofing, and more
- Bold and noticeable roofline for visual impact
- Allows for larger attic spaces and improved ventilation
Installation & Cost Insights
Installing an 8/12 roof pitch requires more effort than moderate slopes. Roofers need additional safety precautions due to the steeper angle, which can increase labor costs slightly. However, the improved performance and attractive design often outweigh the extra expense.
How Does an 8/12 Pitch Compare in Degrees to Other Roof Slopes?
At about 33.69 degrees, an 8/12 pitch is steeper than common residential pitches like 5/12 or 6/12, and just below the very steep 9/12 or 12/12 pitches. It strikes a balance between dramatic appearance and practical function.
What is the Angle in Degrees for an 8-12 Roof Pitch?
The angle of an 8/12 roof pitch is approximately 33.69 degrees. To explore other roof pitches and their corresponding angles, check our full roof pitch and angle chart.
Knowing your roof’s pitch angle helps with material selection, cost estimating, and proper installation planning. The 8/12 pitch is a reliable option that offers both protection and design appeal.
Where Do You See 8/12 Roof Pitches?
The 8/12 pitch is popular for homes seeking a striking roof profile and excellent drainage. You’ll often see this pitch in:
- Chalets and mountain homes — Designed to handle snow, often with steep gable roofs
- Custom residential builds — For a bold and upscale look
- Detached garages and sheds — Complements steeper main home roofs
- Covered porches and additions — Matches dramatic rooflines of primary structures
- Regions with heavy snowfall — Provides fast runoff and structural support
Builders appreciate the 8/12 pitch for its balance of beauty and function. It delivers strong performance while giving homes an eye-catching architectural element.
Overall, the 8/12 roof pitch is an excellent option for homeowners wanting durability, visual impact, and peace of mind in challenging weather.