Fence Gate Calculator

Free fence gate calculator

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Hardware, framing, pickets and total cost per gate.

Worked example

With these inputs:

ResultValue
Total gate cost$146
Gates1 × 4' wide × 6' tall
Hardware$65.00
Framing$45.00
Pickets$36.00

Use heavy-duty hinges and a diagonal brace to prevent gate sag.

How it works

Multiplies your hardware kit cost, framing lumber and picket count by the number of gates to give a total gate budget.

Formula

Total = (hardware + framing + pickets × picket cost) × gate count

Frequently asked questions

Why does my gate sag?

Either undersized hinges, missing diagonal brace, or under-set gate posts. All three are easy to fix during build.

How wide should a walk gate be?

3–4 ft for people; 10–12 ft for a single drive gate; 12–16 ft total for a double drive gate.

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