🌀 HVAC / Sheet Metal · SMACNA / UA Local
HVAC & Sheet Metal Code Practice for Apprentices
Practice HVAC and sheet metal code the way the job tests it — duct sizing, airflow, and SMACNA/ASHRAE standards in real installation puzzles. Free for SMACNA and UA apprentices.
What you'll practice
- ✓Duct sizing (CFM, friction rate, equivalent round)
- ✓Airflow, fan laws, and static pressure
- ✓Ventilation rates and outdoor-air requirements
- ✓Duct construction, gauges, and hanger spacing
Code standards covered
IMCSMACNAASHRAE 90.1ASHRAE 62.1NFPA 90ANEC (equipment)
Learn hvac / sheet metal code by using it
CraftIQ turns the code into a game. Every puzzle is a real jobsite scenario, and every answer cites the actual standard — not a paraphrase. Practice on the phone you already carry, in English or Spanish, and see your progress across all 1,069 code-audited puzzles. Free for individual apprentices; JATCs and locals can license CraftIQ for their whole cohort.
Start practicing free