每张板需要多少颗螺丝？

按标准间距（板中 30 厘米、边缘 20 厘米）约需 32 颗。建议多买：螺丝容易弯折和丢失。

需要多少填缝膏？

三遍标准做法下，每 1,000 平方英尺板面约需 4.5 加仑，也就是一桶。

石膏板应该横铺还是竖铺？

住宅墙面横铺。这样接缝落在便于施工的高度，接缝总长可减少四分之一，且缝隙位于视线最不敏感处。

应该选多厚的石膏板？

墙面和 40 厘米间距的天花板多用 12.5 毫米。60 厘米间距的天花板要用 16 毫米以防下垂，需要防火等级的部位同理。

卫生间需要防潮石膏板吗？

一般墙面需要。但淋浴间或浴缸围挡内必须使用水泥板：所谓“绿板”不是湿区的瓷砖基层，贴砖后会失效。

石膏板计算器

计算一个房间所需的石膏板张数、螺丝、接缝纸带和填缝膏。扣除门窗面积可得到更准确的用量。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

墙面面积(ft²)

天花板面积(ft²)

洞口面积（门窗）(ft²)

板材宽度(ft)

板材长度

每张单价（选填）($)

Result

Sheets

Coverage

504 ft²

Sheet size

4' × 8'

Screws: 576
Joint tape: 76 ft
Joint compound: 7 buckets

Waste default: 10% — USG 建议预留 10% 用于转角和洞口处的裁切。

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((墙面 + 天花 − 洞口) × 1.10 ÷ 单张面积)

参考资料

Measure what the tool asks for
This calculator works from 墙面面积 in ft², 天花板面积 in ft² and 洞口面积（门窗） in ft². 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((墙面 + 天花 − 洞口) × 1.10 ÷ 单张面积) Every figure on the page comes out of that one expression, so you can check it by hand.
Why it adds 10% waste
USG 建议预留 10% 用于转角和洞口处的裁切。
Choosing a 板材长度
Pro tip: 12 ft sheets mean fewer butt joints on walls, which reduces finishing time. Use them if your room has 8–9 ft ceilings.
Where the numbers come from
The constants are taken from USG — Gypsum Construction Handbook, ASTM C840 — Standard Specification for Application and Finishing of Gypsum Board and Gypsum Association GA-216 — Application and Finishing of Gypsum Panel Products, 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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Don't forget

填缝膏
接缝纸带
护角条
底漆
面漆

Also useful

Astrilio Property Calculators

常见问题

把墙面和天花板面积相加，减去洞口，再加 10%，最后除以单张面积。4 × 8 英尺的板材每张覆盖 32 平方英尺。

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Cite this page

Cosyslabs. (2026). 石膏板计算器. Rough Estimator!. https://roughestimator.com/zh/drywall-calculator

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