Introduction
Setting fence posts sits in the sweet spot of DIY: the skill ceiling is low, the tools are rentable, and the work is honest labor rather than specialized craft. But “DIY-able” isn’t the same as “DIY-optimal” — a 50-post fence is a week of digging, and a contractor with an auger attachment and a crew does it in two days. The decision comes down to pace, soil, and what your time is worth.
The Fence Post Concrete Calculator serves both paths — DIYers use it to build a materials list, and it helps you sanity-check a contractor’s quote. This guide compares the two honestly: realistic DIY pace, what pros charge, and where the break-even point sits.
The DIY Path
Realistic pace
With a rented power auger, fast-setting mix, and the layout already marked:
- Easy soil (loam, sand): 8–12 posts per day solo, 12–18 with a helper.
- Average soil (clay, some roots): 6–10 posts per day solo.
- Hard soil (rocky, heavy clay, caliche): 3–6 posts per day — and some holes become half-day projects.
These assume holes are dug in one batch and posts set in another (the pro tips guide explains why batching matters). A 30-post fence in average soil is roughly 4 days of post-setting for one person, plus a day for layout and a day for rails and pickets. First-timers should add 50% — plumbing posts plumb takes practice.
DIY costs
Materials for a 30-post fence (standard 12×36-inch holes, 4×4 posts): concrete ~$1,260, gravel ~$40, plus auger rental ($50–$90/day × 2 days), a post-hole digger and tamper if you don’t own them, and string line and stakes. All-in materials and rentals: roughly $1,450–$1,600 before the posts, rails, and pickets themselves.
DIY advantages
- Cost. You save the entire labor component — typically half or more of a contractor’s bid.
- Schedule control. Set six posts after work each evening; no coordinating with a crew.
- Quality control. You choose the hole depth, the gravel base, the concrete finish — every detail the mistakes guide warns about is in your hands.
DIY disadvantages
- Time. A week of evenings and a weekend, minimum, for a typical fence.
- Physical toll. Digging 30 holes and hauling 180 fifty-pound bags is genuinely hard labor.
- Rock. The DIY plan collapses on the first hole that needs a rock bar and three hours. You can’t price rock until you dig.
The Pro Path
What pros charge
Fence contractors typically price by the linear foot installed ($25–$75/ft depending on material and region), not per post. For post-setting labor alone — you supply materials — expect roughly $40–$100 per post depending on soil, depth, and region. A 30-post set-only job lands around $1,200–$3,000 in labor on top of your ~$1,300 in concrete and gravel.
Pro advantages
- Speed. A two-person crew with a skid-steer auger sets 20–30 posts per day. Your week becomes their two days.
- Rock handling. Pros own the rock bars, jackhammers, and the experience to know when a hole needs to move six inches rather than go deeper.
- Layout accuracy. String lines, property-line offsets, and gate geometry are routine for them and fiddly for first-timers.
- Warranty. A reputable contractor warrants the posts against leaning — your DIY fence warrants itself.
Pro disadvantages
- Cost. Labor typically matches or exceeds materials.
- Scheduling. Good fence contractors book weeks out in spring.
- Variable thoroughness. Some crews skip the gravel base or finish concrete at grade to save time. Specify the details in writing — depth, diameter, gravel, below-grade finish.
The Break-Even Thinking
There isn’t a single break-even point, but the decision usually resolves on three questions:
- How many posts? Under ~15 posts, DIY almost always wins — the fixed costs (rental, learning curve) amortize fine and it’s a weekend. Over ~40 posts, seriously price a crew; the labor savings of DIY shrink against a week-plus of digging.
- What’s the soil? If neighbors report rock, or your first test hole hits it, get a pro quote before committing. Rock is the great multiplier of DIY time.
- What’s your week worth? At 6–10 posts per day, a 30-post fence is 4+ days of hard labor. If those days have a dollar value to you, compare honestly against the $1,200–$3,000 a crew charges.
The hybrid option is underrated: hire the digging, DIY the setting. A contractor or handyman with an auger can drill 30 holes in a few hours for a fraction of full installation cost; you set posts at your own pace with fast-setting mix. You keep quality control over the concrete work — the part that determines longevity — while skipping the worst labor.
Vetting a Contractor
If you hire out, use your estimate as the BS detector:
- Ask for the hole spec in writing: diameter, depth, gravel base, concrete finish below grade. Vague answers (“we dig ’em deep”) are a red flag.
- Compare their bag count to yours. Run the calculator for the spec they quote. A contractor ordering half your calculated bags is planning shallow holes.
- Confirm locates and permits. They should call 811 and pull the fence permit — if they shrug at either, keep looking. (See the code compliance guide.)
- Get the warranty in writing: what leaning or heaving is covered, and for how long.
Related Guides
- Fence Post Concrete Complete Guide — the full how-to with worked examples.
- Fence Concrete Cost Guide — material budgets for the DIY path.
- Fence Concrete Pro Tips — technique for DIY setters.
- Fence Concrete Pre-Dig Checklist — tools and materials for day one.
- Fence Concrete Case Study — a fully worked 30-post project (hypothetical).
Frequently Asked Questions
How long does it take to set 30 fence posts DIY?
Roughly 4–5 days for one person in average soil with a rented auger (6–10 posts/day), plus layout and rail/picket days. A helper cuts it nearly in half.
How much does it cost to have fence posts set professionally?
Post-setting labor alone typically runs $40–$100 per post; full fence installation is usually priced per linear foot ($25–$75/ft). Get 2–3 quotes — soil and region move the number a lot.
Can I dig the holes myself and hire someone to set the posts?
Yes — and the reverse (hire digging, DIY setting) is often the better hybrid, since the concrete work determines longevity and digging is the worst labor.
Is it worth renting an auger for a small fence?
For 10+ holes, yes — a $50–$90/day rental pays for itself in saved hours after about the sixth hole. Under ~8 holes, a manual post-hole digger is fine.
Get Your Number
Whichever path you choose, the estimate is the same: run your hole and post dimensions through the Fence Post Concrete Calculator, count every post type, and price both the materials and a couple of contractor quotes. An informed DIYer and an informed hirer make the same calculation — the only difference is who digs.
Disclaimer: Cost ranges are approximate and vary significantly by region, soil conditions, and season. Verify pricing with local suppliers and contractors, and consult a licensed professional for structural decisions.
