All Design Proposal: Apartment Ventilation

A practical library of design proposal letters, sample specifications, and editable spreadsheets for HVAC&R consulting engineers and D&C contractors.  These templates help you turn technical data and product information into clear, professional design summaries — suitable for client proposals, alternate submissions to builders, and design development. Naturally we have focused our efforts on more innovative products rather than recreating what you already have from the last job. You can adapt each template freely — they’re meant as a head start, not a locked-down spec.

Design Proposal – EcoDuct Flat Duct System for Apartment Laundry, Bathroom & Toilet Exhaust