noun
load-bearing capacity; weight capacity
Technical term used in engineering, construction, and product specifications to indicate the maximum load a structure or item can support.
この棚の耐荷重は50キロです。
The load-bearing capacity of this shelf is 50 kg.
設計時に耐荷重を計算する必要がある。
It is necessary to calculate the load-bearing capacity at the design stage.
耐久性 refers to durability over time, whereas 耐荷重 specifically concerns the maximum static load.
Compound of 耐 (たい, 'withstand') + 荷重 (かじゅう, 'load'). The exact historical derivation is uncertain, but the term is a modern technical coinage.