Unverified87% confidenceDecision RuleTime unknown
搁板长度超过80cm时中间必须增加支撑点，实木/多层板长悬空易下垂，密度板/颗粒板长跨度下垂更明显，长搁板优先选实木或加钢内衬款
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87%
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Long-term
Relevance
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Unverified搁板悬空跨度（两个支架间距）超过60cm且为实木/中密度板时，中间易下弯变形，长搁板应选跨度≤60cm并增加中间支撑或改用金属托架89% similarUnverified搁板长度超过80cm时，仅两端支撑会导致中间下垂，需在中部增加一个支架，或选用厚度≥25mm的实木/多层板以提升抗弯性能89% similarUnverified层板跨度超过80cm时，两端支架中间需增加一个支撑点，否则实木/多层板长期受重会出现弓形下垂变形89% similarUnverified长搁板（>80cm）中间不加支撑易下弯变形，木质板长度超60cm建议增加中间支架或选用厚度≥18mm的板材88% similarUnverified实木搁板常见规格厚度18-30mm，橡木/白蜡木硬度高抗变形，长度超过80cm的木质搁板建议加中间支撑点防中部下弯88% similar
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