QGIS Project Folder Structure for Engineering Work

GIS files multiply quickly. A clear project folder saves hours when maps, analysis layers, and exported figures need to be revised.

1. Separate raw and processed data

Never edit raw downloaded data directly. Keep raw layers read-only and create processed copies for analysis.

2. Use clear CRS notes

Add a text file describing the project CRS, vertical datum, and any transformation used.

3. Store map layouts separately

Keep final PDFs, PNGs, and map exports in an output folder instead of mixing them with source data.

4. Name layers by purpose

Use names like basin_boundary_final, road_buffer_100m, or flood_extent_q100 instead of generic export names.

5. Package before handover

Use QGIS project packaging or relative paths so the project opens correctly on another computer.