一张胶合板多少平方英尺？

标准 4 × 8 英尺板为 32 平方英尺。4 × 10 英尺为 40 平方英尺，4 × 12 英尺为 48 平方英尺，但后两种备货较少。

地面基层用多厚的板？

龙骨 40 厘米中心距时用 19 毫米企口板，60 厘米间距需更厚或加铺一层。铺瓷砖时通常在 19 毫米之外再加一层找平板。

胶合板还是欧松板？

同等级下结构性能相当，欧松板更便宜。胶合板更耐反复受潮且干得更快，这在可能暴露一段时间的屋面板上很重要。

板材应该朝哪个方向铺？

表层木纹（欧松板为强轴）应与龙骨或立柱垂直，这才是设计的受力方向。平行铺设会让允许跨度几乎减半。

板与板之间要留缝吗？

要，各边留约 3 毫米。板材会随湿度膨胀，顶死铺装会导致起拱。企口地面基层板的接口本身已含此间隙。

胶合板计算器

计算一块面积需要多少张胶合板或欧松板，适用于地面基层、墙面覆板或屋面板，并给出损耗与紧固件数量。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

区域长度(ft)

区域宽度(ft)

板材长度(ft)

板材宽度(ft)

损耗百分比

每张单价（选填）($)

Result

Sheets needed

Area

384 ft²

Sheet size: 4 × 8 ft (32.0 ft²)
Coverage: 448 ft²
Approx. fasteners: 700
Waste: 10%

Waste default: 10% — 10% 用于沿墙和洞口的裁切；带天沟的屋面或转折较多的地面提高到 15%。

Diagram

Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.

公式

张数 = 向上取整(面积 ÷ 单张面积 × (1 + 损耗))

参考资料

Measure what the tool asks for
This calculator works from 区域长度 in ft, 区域宽度 in ft and 板材长度 in ft. Measure the finished area you are covering, not the material — an estimate is only as good as the dimensions you feed it.
What it does with those numbers
张数 = 向上取整(面积 ÷ 单张面积 × (1 + 损耗)) Every figure on the page comes out of that one expression, so you can check it by hand.
Why it adds 10% waste
10% 用于沿墙和洞口的裁切；带天沟的屋面或转折较多的地面提高到 15%。
Where the numbers come from
The constants are taken from APA — The Engineered Wood Association: Panel design and application guides, PS 1 — Structural Plywood standard and IRC R503 — Floor sheathing, linked in full below. If a figure here disagrees with your supplier's spec sheet, use the spec sheet — it describes the product you are buying.
What this will not tell you
This is a material takeoff, not a bid. It does not price labour, permits, delivery, equipment hire or site preparation, and it assumes a straightforward layout. Complex cuts, difficult access and awkward shapes all cost more than the geometry suggests.

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常见问题

用面积除以每张 4 × 8 英尺板的 32 平方英尺，再加 10% 裁切损耗。7.3 × 4.9 米的地面为 384 平方英尺，即 12 张，含损耗 14 张。

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Cite this page

Cosyslabs. (2026). 胶合板计算器. Rough Estimator!. https://roughestimator.com/zh/plywood-calculator

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