Ductulator vs PVC

Size HVAC ducts instantly using airflow, friction or velocity. Get accurate duct dimensions in seconds — no charts required. • Get a range of suitable duct sizes based on friction rate or velocity. • Get multiple valid duct dimensions instantly. • Tap on Friction Rate or Velocity to toggle between calculation methods. • IP and SI units. • Detailed sizing mode to adjust the duct dimensions and air flow rates. • Supports rectangular, circular and flexible ducts. • Automatic friction and velocity updates. Calculations are based on standard air 0.075 lb/ft3 (1.2 kg/m3) in clean galvanized steel or non-metallic flexible ducts. Any feedback is welcome, and will be the basis for future updates.

PVC 4DAT is field-first planning and inventory for PVC pipe projects. Punch in what a project requires, and PVC 4DAT shows the inventory gaps — the pipe, fittings, and consumables you still need to buy — then helps you order them in a tap. PLAN THE JOB • Build a plan from the pipe and fitting requirements your project needs • Start from preset plan templates, or build your own custom templates (Pro) • Cold-water layouts; sizing by diameter and schedule TRACK WHAT YOU HAVE • Track pipe segments and fitting stock by type and diameter • Add inventory by hand, by CSV, or straight from a photo (Pro) • See totals by category at a glance CLOSE THE GAPS • PVC 4DAT subtracts what you have from what a project needs • The shopping list shows exactly what to buy, in pieces and lengths • Reserve stock to a project so two jobs never double-count the same parts • Export the shopping list as a print-ready PDF (Pro) ORDER THE MISSING PARTS • Each part can open a tagged Amazon search built from its type, diameter, and schedule (Pro) • No prices, ratings, or images in-app — just a clean search link • Confirm size, schedule, and fitment on the listing before ordering PRIVATE BY DESIGN • All data stays on your device; no account, no analytics, no tracking PVC 4DAT is free to start: 2 projects, 25 inventory items, and the preset plans. PVC 4DAT Pro ($8.99/year) unlocks unlimited projects and inventory, custom plan templates, PDF export, photo inventory scan, and Amazon shopping links. As an Amazon Associate, 4DAT earns from qualifying purchases made through links in the app. PVC 4DAT does not display Amazon prices, ratings, or reviews. Sizing and bill-of-materials outputs are planning aids, not engineering or code advice; none of the templates are for hot water. Terms of Use: https://pvc4dat.com/terms Privacy Policy: https://pvc4dat.com/privacy