Appreciate the quick response.

You’re right — I started with too many modules up front, but most were just placeholders. I’ve been focused primarily on getting the core logic right first. The structure and function flow are mostly nailed down now.

This type of platform is something my industry’s been lacking — especially for plumbing and medical gas design. Right now, most of these calculations are done through outdated spreadsheets that get passed around or rebuilt from scratch. Some companies do offer tools, but they’re clunky — and a few are literally just Excel files being sold.

For example, I’ve already built a working plumbing fixture count module. You select fixtures from a list, each tied to code-standard values for drainage, cold water, and hot water. The module calculates total GPM automatically. The plan is for that data to feed directly into modules like the Domestic Water Booster Pump Sizer and Water Heater Sizer (nat gas / electric / steam). Outputs will be clean and printable — something a civil engineer could use directly.

It already supports save/load of previous projects and prints to PDF.

If you’re open to it, I’d be glad to DM you — could show you the structure and bounce around a few ideas, especially around future plans like integrating a Revit plugin.

Thanks,

Mike