Unverified84% confidenceDecision RuleTime unknown
书房搁板放书时单块层板长度不宜超过80cm，实木层板超80cm无中间支撑长期承重会弯曲，需缩短跨度或加中间托架
1
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84%
Confidence
Long-term
Relevance
-
First Seen
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Unverified书房承重书籍的置物架，单层跨度超过80cm时中间必须加支撑或选择加厚层板（≥18mm实木/25mm密度板），否则长期堆书会中间下垂弯曲90% similarUnverified承重书籍的隔板跨度应≤900mm，超过此宽度的实木或颗粒板隔板长期承重会中间下垂，需加装中间竖板支撑或选择带背板的箱体结构90% similarUnverified密度板/刨花板层板长度超过80cm且无中间支撑时，长期承重会中部下弯变形；跨度大的书架应选实木、金属层板或带中立柱结构88% similarUnverified承重收纳（书籍、餐具）选18mm厚度以上颗粒板或多层实木，18mm单层隔板跨度不宜超过80cm否则长期受压会弯曲，需增加中间立板支撑87% similarUnverified层板每80cm宽度应有中间支撑立板或加装金属层板托，无支撑的长跨度层板放满书后可能下弯3-5mm，选购时优先看是否有背板通槽或加固横梁设计85% similar
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