calculatorsonline.co.uk
Roof Overhang Calculator
Calculate the horizontal and sloped length of a roof overhang.
home Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Overhang
Compare Your Options And Get Clear Answers
Calculate the horizontal and sloped length of a roof overhang.
Roof Overhang Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Measure from wall face.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Roof Quick Guide
Typical values for reference.
| Overhang | Pitch | Sloped | Drop |
|---|---|---|---|
| 30 | 30 | 34.6 | 17.3 |
| 40 | 30 | 46.2 | 23.1 |
| 60 | 35 | 73.2 | 42.0 |
| 50 | 45 | 70.7 | 50.0 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Roof Overhang Calculator FAQ
Answers to common questions about this calculator.
About 300-600 mm.
It gives a quick estimate of roof overhang from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.