Interactive ladder tool

Ladder Duty Rating Calculator

A premium, mobile-friendly ladder planning tool. Estimates only — always follow the manufacturer's instructions.

As an Amazon Associate, BestLaddersReview may earn from qualifying purchases.

Duty Rating / Load Calculator

Add up your weight, tools, and materials, then we will suggest a minimum ladder duty rating. Never exceed the manufacturer's maximum load.

Ladder use involves fall risk. Always follow the manufacturer's instructions, warning labels, duty rating, local workplace rules, and safety guidance. Do not exceed load capacity. Use the correct ladder type and height for the job.

Duty rating reference

TypeMax load (lb)Best forShop
Type IAA 375 Extra heavy duty (industrial) View on Amazon
Type IA 300 Heavy duty (professional) View on Amazon
Type I 250 Heavy duty (commercial) View on Amazon
Type II 225 Medium duty (homeowner / DIY) View on Amazon
Type III 200 Light duty (light household) View on Amazon

Recommended ladders

6 ft Aluminum Step Ladder

Best for: Indoor DIY, paint, light home repair.

  • Step
  • ≈ 10 ft reach
  • Type II
  • Aluminum
  • Lightweight
  • Easy to store
  • Avoid near electrical
Safety: Never stand on the top cap or label.
Check price on Amazon

As an Amazon Associate, BestLaddersReview may earn from qualifying purchases.

6 ft Fiberglass Step Ladder

Best for: Electrical and household work.

  • Step
  • ≈ 10 ft reach
  • Type IA
  • Fiberglass
  • Non-conductive rails
  • 300 lb duty
  • Heavier than aluminum
Safety: Still verify breaker is off before electrical work.
Check price on Amazon

As an Amazon Associate, BestLaddersReview may earn from qualifying purchases.

24 ft Extension Ladder

Best for: Gutter cleaning and 2-story access.

  • Extension
  • ≈ 23 ft max safe reach
  • Type IA
  • Aluminum
  • Long reach
  • Compatible with stabilizers
  • Heavy to move alone
Safety: Use 4-to-1 rule. Keep away from power lines.
Check price on Amazon

As an Amazon Associate, BestLaddersReview may earn from qualifying purchases.