Unverified83% confidenceFactTime unknown
板材密度直接决定承重：颗粒板（刨花板）密度约650-720kg/m³，中密度纤维板(MDF)约720-800kg/m³，实木多层板承重与抗变形最优，转角长台面（>140cm）建议板厚≥25mm避免中部下垂
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Unverified板材厚度与承重正相关：实木隔板厚度<1.8cm在跨度超过60cm时中间易下垂，长隔板（80cm以上）应选厚度≥2.5cm或中间加装支撑85% similarUnverified板材优先选双饰面刨花板（颗粒板）E1级及以上或密度板，厚度≥18mm；层板承重与厚度直接相关，18mm层板单格净跨度＞60cm时长期放重物会中间下弯变形85% similarUnverified承重收纳（书籍、餐具、电器）选择板材厚度≥18mm的三聚氰胺板或多层实木，18mm以下的薄板层板宽度超过60cm易中间下垂变形84% similarUnverified颗粒板（刨花板）模块看板材密度：优质E0/ENF级板材密度应≥680kg/m³，密度低于600kg/m³的板材螺丝孔位反复拆装2-3次后易滑丝松动，不适合需要频繁重组的场景83% similarUnverified承重能力看层板材质与跨度：颗粒板层板跨度超过80cm时承重会明显下降，放置显示器+主机+功放的层板应选实木多层板或跨度≤60cm的颗粒板，单层承重需≥30kg83% similar
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