Fence Gate Calculator
Hardware, framing, pickets and total cost per gate.
A walk gate or drive gate adds materials cost beyond the standard fence run. This calculator breaks out hardware, framing and pickets.
Hinges + latch
Calculation Results
Planning estimate — actual quotes vary
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Smart Fencing Calculator keeps your fence projects on your phone and works offline on the job site. On iPhone? It's inside Roofing Calculator & Estimator.
📌 Use heavy-duty hinges and a diagonal brace to prevent gate sag.
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Disclosure: As an Amazon Associate I earn from qualifying purchases.
SANKINS Self Closing Gate Hinges Heavy Duty, 90 Degree Adjustable, 2 Pcs | Heavy duty gate hinges fence hinges for Wooden/Vinyl/PVC Fences, with installation screws and swing adjuster tool, black
$29.99
Check price on Amazon
Goovilla 4x4 Post Caps Black(Actual 3.5" x 3.5"), 24 Pack with 48 Screws | Easy Installation Fence Post Caps, Sturdy Waterproof Plastic Deck Post Caps with Frosted Finishing Touch, Protect Wood Post
$19.99
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SANKINS Self-Locking Gate Latch Heavy-Duty for Wood Gate, Steel Black, 1pcs | Post Mount Automatic, gate locks for outdoor fence| Pool | Garden, Gravity Door Latch with Fasteners Hardware, Padlockable
$18.99
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DEWALT 20V MAX XR Brushless Cordless 7-1/4 in. Circular Saw, Tool Only (DCS590B)
$184.00
Check price on AmazonPrices as of Oct 19, 2026, 4:37 AM UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
🛠️ How This Calculator 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📝 Example Calculation
1 gate, 4 ft wide, $65 hardware, $45 framing, 12 pickets × $3: Total = 65 + 45 + 36 = $146
💡 Pro Tips from Fence Builders
- Use 3 hinges (not 2) on gates over 4 ft tall.
- Add a diagonal brace from the bottom hinge corner to the top latch corner.
- Use a self-closing gate kit if you have a pool — it's required by code.
- Set gate posts in extra concrete (24+ inches deep).
❓ 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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