Aluminum vs. Steel Frame Analyzer
Weight Savings vs. Fatigue Life: Make the right choice.
1. Build Parameters
Frequent travel stresses the metal (Fatigue).
Aluminum typically costs 2x more but saves 30-40% weight.
Steel Frame Industry Standard
Estimated Weight
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Estimated Cost
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High Durability: Steel has an infinite fatigue limit. It can flex millions of times without cracking if staying within load limits.
Aluminum Frame Weight Saver
Estimated Weight
0 lbs
You save 0 lbs!
Estimated Cost
$0
+$0 Premium
The Fatigue Problem
Infinite vs. Finite Life
Steel has an “endurance limit.” If stresses stay below a certain threshold, it can cycle infinitely without failing. Aluminum does not. Every single bump in the road contributes to cumulative microscopic damage (work hardening), eventually leading to cracks.
Galvanization is Key
People choose aluminum to avoid rust. However, a Hot-Dip Galvanized Steel trailer offers similar corrosion resistance for 50+ years, maintains the structural benefits of steel, and is still cheaper than aluminum.