Some links that might be helpful: American National Standards Institute - ANSI ADA STANDARDS FOR ACCESSIBLE DESIGN International Code Council-ICC IBC-Building Code PMG-Plumbing Mechanical & Gas Code Door and Hardware Institute-DHI Construction Market Data Dodge Data & Analytics   Helpful Hints: *Always review quotes & acknowledgements for inconsistencies because it’s cheaper & easier to correct them at earlier stages of the process. *Confirm lead times prior to making a commitment to your customers. *Freight estimates change often due to fuel cost and should be reconsidered on quotes that are older than 90 days. *Beware special request for freight carriers like “call on arrival”, more & more carriers are now accessing “special charges” for anything other than dock delivery.