About DIY Project Calc
What This Site Is
DIY Project Calc provides free, browser-based construction calculators and technical project guides. Every calculator runs entirely in your browser — no data is sent to our servers, no signup is required, and no personal information is collected through the tools themselves.
The content on this site is written to be technically specific — formulas, ASTM and IRC code references, material chemistry, and structural mechanics — because we believe accurate information is more useful than simplified general advice. Each calculator page includes a "How This Calculator Works" section that explains the formulas and assumptions behind the estimates.
Who This Is For
This site is for homeowners, DIY builders, and trade apprentices who need quick material estimates and a clear understanding of why the numbers are what they are. The guides are not a replacement for licensed engineering or professional contractor services — they are a resource to help you ask better questions, make informed decisions, and catch problems before they become expensive.
Editorial Standards
Every content guide on this site references specific building codes (IRC, NEC, ASCE), ASTM testing standards, or physical formulas. Our technical guides are developed using published codes, standards, government guidance, and manufacturer documentation where applicable. When exact numbers vary by region or product, that variance is noted in the text with a recommendation to check with your local Authority Having Jurisdiction (AHJ) or the manufacturer's technical data sheet.
We do not publish generic, recycled advice. Each guide is written to a minimum of 1,200 words and follows a unique structural approach per topic to ensure it contributes original value rather than duplicating what already exists.
Advertising and Affiliate Disclosure
This site participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by linking to Amazon.com. Product recommendations are based on utility and relevance to the project, not on commission rate.
We also link to Dakota Contractor Pros for contractor lead generation. These are affiliate connections — we may receive a fee when a user submits a quote request.
Contact
If you have questions about the calculators, the content, or find an error that needs correction, please reach out through the contact form on Dakota Contractor Pros.
Disclaimer
All calculators provide estimates for planning purposes only. Results are not professional engineering advice. Building codes vary by jurisdiction, and site conditions (soil bearing capacity, frost depth, local amendments) can change material requirements. Always consult a licensed contractor or structural engineer before making construction decisions based on online calculations.