🪵 围栏材料计算器Fence Calculator

使用说明与常见问题How-to & FAQ

「围栏材料计算器」是什么？What is the Fence Calculator tool?

按围栏总长度、立柱间距和门的数量计算需要的立柱、横杆、栅板数量和立柱混凝土袋数，适合木栅栏和尖桩篱笆。Estimate fence materials — posts, rails, pickets and concrete bags for the posts — from the total length, post spacing and number of gates, for wood privacy and picket fences.

如何使用「围栏材料计算器」？How do I use the Fence Calculator tool?

在「围栏材料计算器」中，填写「单位制」、「围栏总长（英尺/米）」、「立柱间距（英尺/米）」、「门数」、「每扇门宽（英尺/米）」等参数，结果会随输入实时计算并显示在下方。In the Fence Calculator: Fill in "Units", "Total length (ft / m)", "Post spacing (ft / m)", "Gates", "Gate width (ft / m)"; results are recalculated instantly as you type.

立柱数量怎么算？How many posts do I need?

段数 = (围栏长度 − 门宽合计) ÷ 立柱间距（向上取整），立柱 = 段数 + 1；每扇门再多一根立柱（门两侧各需一根，其中一根与围栏共用）。横杆长度按净长均分到各段计算，所以最后一段不会特别短。门数为 0 时不需要填门宽。转角较多时每个转角可能还要多加一根。Sections = (length − total gate width) ÷ spacing, rounded up; posts = sections + 1, plus one per gate (each gate needs a post on both sides, one shared with the fence). Rail length splits the net length evenly over the sections, so no short last panel. With 0 gates the gate width is not needed. Extra corners may need extra posts.

栅板数量？How many pickets?

无间隙（隐私围栏）时，栅板数 = 围栏净长 ÷ 栅板宽（向上取整）。有间隙时，取能放下的最多块数 = ⌊(净长 + 间隙) ÷ (栅板宽 + 间隙)⌋，并显示均分后的实际间隙（略大于填写的间隙）。常见 1×6 板实际宽 5.5 英寸。With no gap (privacy fence), pickets = net length ÷ picket width, rounded up. With a gap, it is the most that fit, ⌊(net length + gap) ÷ (width + gap)⌋, and the actual gap after spacing them evenly (slightly above the gap you entered) is shown. A nominal 1×6 board is actually 5.5 in wide.

混凝土要多少？How much concrete?

立柱埋深约为柱高的 1/3、每根 1–2 袋 50 磅速凝混凝土是常见经验做法（示例值），默认每根 2 袋也是示例值，请以混凝土包装说明和当地规范为准。Setting posts about a third of their length deep with 1–2 bags of 50 lb fast-setting concrete each is a common rule of thumb (example values), and the default of 2 bags per post is an example too; follow the bag's guidance and local codes.

「围栏材料计算器」免费吗？需要注册吗？Is the Fence Calculator free? Do I need an account?

「围栏材料计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Fence Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.