Hi Jonathan,

A good way of going about storage estimations like this is coming up with an average document size (per area, if necessary), then multiplying by the known or expected number of documents, then adding a 20-50% buffer to account for things like the thumbnails, text pages, search catalogs, etc. that Laserfiche generates in addition to the documents themselves. 

A main thing to look out for with the areas you listed are if there are large format scans of blueprints, plans, etc. that can be hundreds of times large than the typical Word/PDF document.