Unverified87% confidenceDecision RuleTime unknown
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
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87%
Confidence
Long-term
Relevance
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Unverified承载书本/文件的收纳架，隔板单层承重需≥5kg且隔板厚度≥15mm（实木/多层板）或钢板厚度≥0.8mm，否则长期堆放书籍会出现中部下凹变形93% similarUnverified单层层板承载普通图书（约30cm宽16开书）需满足20kg/延米以上承重，宽度＞80cm的层板必须做中间加支撑或选用18mm以上厚度板材，否则3-5年内会明显下弯变形91% 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90% similarUnverified书籍单层承重需≥15kg/层，普通16mm密度板层板跨度超过90cm易下弯，超过80cm应加中立板或选用25mm厚板/实木层板87% similar
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