立柱要埋多深？

埋入深度约为柱高的三分之一，1.8 米高的围栏一般埋 60–90 厘米，并且必须低于当地冻土线。

每根立柱要多少混凝土？

直径 25 厘米、深 75 厘米的柱洞每根约需一到两袋 25 公斤装。转角柱和门柱要更宽的洞和近两倍的混凝土。

立柱间距多少合适？

1.8 到 2.4 米中心距。8 英尺常见是因为与标准横档长度吻合；6 英尺在多风地区明显更稳固。

立柱用混凝土还是碎石？

混凝土更牢固，碎石排水更好。常见折中做法是洞底铺碎石排水、上方浇混凝土，避免积水泡烂木柱。

围栏哪一面朝外？

按惯例把完成面（横档隐藏的一侧）朝向邻居和街道。部分地区有强制规定，动工前请先确认。

围栏计算器

计算任意线性围栏所需的立柱、横档和栅板。默认立柱间距 8 英尺、标准 6 英尺高隐私围栏。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

总长度(ft)

立柱间距

每段横档数

栅板宽度(in)

栅板间隙(in)

每英尺单价（选填）($)

Result

Posts

Rails

200 ft

Pickets

200

Linear length: 100 ft
Post spacing: 8 ft

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

立柱 = 向上取整(长度 ÷ 间距) + 1

参考资料

Measure what the tool asks for
This calculator works from 总长度 in ft, 栅板宽度 in in and 栅板间隙 in in. 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
立柱 = 向上取整(长度 ÷ 间距) + 1 Every figure on the page comes out of that one expression, so you can check it by hand.
Choosing a 立柱间距
Pro tip: 8 ft is the residential maximum for a 6-ft wood privacy fence. Use 6 ft spacing in windy areas or for tall fences above 6 ft.
Where the numbers come from
The constants are taken from American Wood Council — Wood Frame Construction Manual, AWPA U1 — Use Category System for treated wood in ground contact and IRC R404 — Foundations, footings and frost depth, 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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柱基混凝土
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常见问题

用总长度除以间距再加一根收尾。按 2.4 米间距计算，30 米需要 13 根立柱。

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Cite this page

Cosyslabs. (2026). 围栏计算器. Rough Estimator!. https://roughestimator.com/zh/fence-calculator

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