About & Methodology

Outdoor Project Planner is a new, independent site built to answer one question:what do I actually need to buy and know before I start this project? We're early — the planner library is still growing, and this page will grow with it.

How calculations work

Every planner and calculator on this site runs on the same shared, deterministic calculation library. Given the same inputs, a planner always produces the same output — nothing here is generated or estimated by AI at calculation time. Each planner documents its formulas, units, and any waste or overage allowance it applies, and shows that reasoning back to you in an "Assumptions" section alongside your results.

Where recommendations come from

We separate two different kinds of information: mathematical facts (area, volume, unit conversions — these are just math) and recommended practices(how deep to lay gravel, how much to overseed, what soil mix to use). Recommendations are sourced from university extension programs, USDA guidance, government agencies, and established manufacturer documentation — never invented. Where a project touches structural, drainage, electrical, or code-related territory, we scope the tool to material planning only and say so plainly, rather than guess at requirements that vary by location.

What we don't do

We don't publish fabricated author bios, credentials, or testimonials. We don't hide commercial links inside editorial recommendations — see ouraffiliate disclosure. And if a planner or article isn't confident enough in its sourcing to publish, we'd rather hold it back than guess.

Contact

Spotted something wrong, or have a project you'd like us to build a planner for? Reach out at contact@your-domain-here.com.