About SevWood
SevWood provides free woodworking calculators, lumber references, and practical construction guides.
Our goal is simple: make common measurements easier to calculate, understand, and apply to real projects.
What You’ll Find
Woodworking Calculators
Straightforward tools for calculating lumber volume, stair dimensions, and roof pitch.
Each calculator includes explanations, formulas, and worked examples to help you understand the results.
Material References
Practical reference information for working with wood, including nominal and actual lumber dimensions.
Our reference pages explain measurement conventions and identify the technical standards used.
Construction Guides
Step-by-step explanations that connect calculations with practical planning.
Guides focus on measurements, layout methods, and common mistakes to avoid.
How Our Calculators Work
SevWood calculators use defined mathematical formulas and the measurements you provide.
Results depend on the input values, selected units, and assumptions described for each tool.
Where relevant, we explain rounding, measurement conventions, and the limitations of calculated results.
Sources and Accuracy
We aim to make technical information clear, verifiable, and useful.
Reference materials identify their sources, including applicable industry standards and technical publications.
Standards and construction requirements may change or differ between locations. Always check the requirements applicable to your project.
Our calculators and guides are planning and educational tools. They do not replace structural engineering, professional assessments, or required building-code verification.
Simple Tools. Clear Results.
No account required. No unnecessary complexity.
Choose a calculator, enter your measurements, and get the information you need.