Unverified80% confidenceDecision RuleTime unknown
需堆叠收纳的场景优先选带卡扣互锁结构（凹凸嵌合）的盒子，纯平面堆叠在搬动时易滑落；单层承重标注应≥5kg才适合叠放存放重物
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80%
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Long-term
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Unverified需要叠放堆叠的收纳盒，认准盒盖与盒底有卡扣式互锁凹槽设计，单纯平顶叠放在搬动或震动时易滑落，负重叠放时选PP材质壁厚≥2mm的款式防止形变塌陷87% similarUnverified叠放场景优先选带独立框架结构的箱体，纯靠箱盖承重的款式叠放3层以上易导致盖子凹陷变形；带内嵌卡扣或加强筋的箱体可稳定叠放4-5层87% similarUnverified箱体顶部平整可堆叠，但搭扣凸起处影响完全贴合，多层堆叠时稳定性不如卡扣内嵌式设计的收纳箱87% similarUnverified折叠收纳性与承重挺立性天然矛盾：可折叠软布盒依赖拆卸底板，装满重书后接缝易受力变形；追求折叠省空间就要接受承重上限低（通常单盒≤5kg绘本）86% similarUnverified堆叠收纳需选箱盖带凹凸卡扣互锁设计的款式，仅靠平面重叠的箱子在3层以上会侧滑坍塌85% similar
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