Buying welders
What welder do I need for a trailer?
Quick answer
For a trailer: MIG 180 A+ (or multi-process), 15 A preferred. That's driven by structural 3–6 mm box section: real penetration, chassis-grade welds, legal roadworthiness.
Why this machine
Structural 3–6 mm box section: real penetration, chassis-grade welds, legal roadworthiness. Match the process to the material, thickness and conditions before you look at brands or prices.
Budget expectation
Whatever the category, check the live band in our price index before shopping — and remember the helmet, gloves and ventilation are part of the purchase, not extras.
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