How to Invoice After Backyard Fence Installation

Short answer: To invoice after backyard fence installation, bill the run in linear feet, gates each, and show the post count as its own line — a 100-foot run at 6-foot spacing takes 18 posts against 14 at 8-foot spacing, and the linear-foot price hides that. Add concrete by the bag per hole, old-fence removal and disposal, and any rock or root digging as a dated extra. Photograph the marked utility lines before you dig.

A backyard is the fence job where the price per foot and the work per foot agree least. It is an enclosure rather than a straight line, so it has corners, a gate, a house-side termination, ground that slopes toward a swale, and no truck access at all. Every post, panel, and bag of mix goes through a 36-inch gate in somebody’s hands. The invoice has to make that visible without turning into a lecture. The standard document blocks are in what to include on an invoice; the rest is backyard-specific.

What unit does a backyard fence invoice run on?

Linear feet for the run, each for gates, and a stated post count sitting between them.

Linear feet is the unit customers understand and the unit your competitors quote in, so use it. The trouble is that it conceals the number that actually drives your day. Two identical 100-foot runs at two different post spacings are two different jobs, and a customer comparing three bids on price per foot has no way to see that unless you put the count on the document.

100-foot run	Bays	Posts	Holes to dig
8 ft on center	13	14	14
6 ft on center	17	18	18

Four extra posts is four extra holes, four extra sets, and — as the next section shows — roughly nine more bags of concrete carried around the house by hand. Print the count. Then price corner and terminal posts separately from line posts, because a corner post takes lateral load in two directions, usually goes bigger and deeper, and on a backyard enclosure you will have at least two of them plus two terminations at the house.

Where do the linear feet come from, and why does the post count matter more?

From a wheel or tape run on the actual layout after the marks are down, not from a satellite image and not from the estimate.

Measure the finished line, corner to corner, and record each leg separately. A typical backyard is three legs — say 40 feet across the back and 30 feet down each side — which is 100 linear feet with two corners and two house terminations. Those legs go on the invoice as legs, because that is how the customer walked it with you and how they will check it.

Post spacing is not a preference. It is set by the material. Stick-built wood lets you choose it and adjust for an odd leg length. Vinyl and aluminum come in fixed panel widths, so the product dictates spacing and an odd leg means a cut panel or a custom bay, both of which are labor lines. Chain link runs on a different logic again: terminal posts are a larger diameter than line posts, and the top rail, tension wire, bands, and fabric all get counted separately.

Two things belong on the invoice near the footage. First, the utility marking. Calling 811 before digging is required by law in every state, with a notice period your state’s one-call center sets, commonly a couple of business days, and marks that expire on a state clock. If a rain delay pushed you past expiry and you re-ticketed, that is a real schedule event worth a line. Second, the limits of that marking: 811 locates public utilities, not the homeowner’s private irrigation, low-voltage lighting, invisible pet fence, septic laterals, or the gas line somebody ran to a grill. Say in writing before you start that private lines are the owner’s to locate, and photograph the paint and flags on the morning you dig.

How much concrete actually went in the ground?

More than anyone expects, and it is worth showing because it is the heaviest thing on the job.

Hole volume is a cylinder: π × radius² × depth, in feet. Diameter runs about three times the post width, and depth is generally the greater of a third of the post’s above-ground height or your local frost depth.

Hole size	Volume	80 lb bags at ~0.6 ft³
8” × 24”	0.70 ft³	about 1.2
10” × 30”	1.36 ft³	about 2.3
12” × 36”	2.36 ft³	about 3.9
12” × 42”	2.75 ft³	about 4.6

Subtract a little for the post itself — a 4x4 is actually 3.5 inches square, so 30 inches of it displaces roughly 0.2 ft³ — and round up, because a short hole is not something you fix later.

Now put it back into the backyard. Eighteen posts in 10-inch by 30-inch holes is about 41 bags, or a bit over 3,200 pounds of mix, every pound of it wheeled or carried through a side gate. The same run at 8-foot spacing is 32 bags. And the dirt has to go somewhere: eighteen holes generate around 25 cubic feet of spoil, near a cubic yard once it is loose, which either gets spread on site with the owner’s agreement or hauled away as a disposal line. Same arithmetic as pouring footings, on a much smaller scale and with none of the access.

Which lines belong on a backyard fence invoice that a straight run does not have?

The ones that come from the yard being enclosed, sloped, and unreachable.

• Access and haul-in. No truck at the fence line means everything is hand-carried. Bill it as a stated allowance or by the hour, and say what it covered.
• Grade handling. State on the invoice whether the fence was stepped or racked. Preassembled panels can only be stepped, which leaves triangular gaps under each panel on a slope; stick-built can be racked to follow grade at a real labor cost per bay. Customers who wanted one and got the other complain a year later, and the invoice is where the record lives.
• Corner, terminal, and gate posts, each, at their own price. Gate posts on a wide or double gate get upsized and set deeper.
• Gates, each, with hardware itemized: hinges, latch, cane bolt or drop rod on a double drive gate. If the fence forms part of a pool barrier, self-closing and self-latching hardware is a code item, not an upgrade.
• Old fence removal, in linear feet for the demo and each for old post footings, because some pull out clean and some have to be dug and broken.
• Difficult digging, hourly and dated: rock, tree roots, buried slab, or an old footing nobody knew about.
• Disposal, by the load, separated from removal labor.
• Spoil handling, spread or hauled.
• Permits, HOA submittals, and any survey you had to order or wait on.

What changed between the estimate and the invoice?

Backyards move the most between the two, because you quote a line and dig a soil profile.

What happened	What it added
Marks came back with a gas service crossing the line	Hand digging within the tolerance zone, hourly
Rock or a root mass at three posts	Difficult-dig hours plus a bigger auger or a breaker
Slope steeper than it looked from the deck	Racked bays instead of stepped, at a per-bay labor rate
Property pins located after the estimate	Line shifted, leg lengths changed, footage re-measured
Homeowner added a second gate for the mower	Gate each, plus two upsized posts and deeper holes
Old fence footings would not pull	Each, dug and broken, plus disposal weight
Rain pushed the start past the 811 mark expiry	Re-ticket and a return mobilization
Neighbor asked for the good side facing out	Rail orientation change, and a conversation about who is paying

Each gets its own dated line with quantity and the approval attached — a text, a photo, a signature. Rolled into the footage it looks like a price increase. Written as “3 posts in rock, 2.5 hrs, approved on site 6/18” it looks like a record.

How do I build a linear-foot price from one bay?

Price a single bay completely, then divide. That is the only method that survives a change in spacing, material, or grade.

1. Cost one bay of material. One post, its concrete, the rails, the pickets or panel, and the fasteners. For chain link, one bay’s share of fabric, top rail, tension wire, and bands.
2. Time one bay of labor. Layout, dig, set and plumb, brace, and build. Time it honestly on a real job, and keep separate rates for stepped bays, racked bays, and bays in bad ground.
3. Multiply hours by loaded hourly cost. Wages plus payroll burden plus the auger, the truck and trailer, fuel, tools, and insurance.
4. Divide by bay width to get a linear-foot cost, then add the items that are not per-bay at all: corner and terminal posts, gates, demo, disposal, access, permits.
5. Add overhead. Yearly fixed cost spread across the hours you actually sell.
6. Add profit as margin, not markup. They are different sums and the gap is real money. A job costing $4,800 with a 15 percent markup bills at $5,520 and keeps about 13 percent. To keep a true 15 percent you divide by 0.85 and bill $5,647. Do that on forty jobs a year and the difference is a truck payment.

Per-foot ranges published online swing with material, region, terrain, season, and how far the wheelbarrow has to travel. They are useful for catching an error of a factor of two and useless for setting a price.

What do I show at handover, and what does the warranty actually cover?

Walk the line with the customer, gate first.

Show four things. The before-and-after photo set, including the paint and flags from the morning you dug. The property line evidence — a photo of the pins or the survey you worked from — because a fence on the wrong side of a boundary is the single most expensive mistake in this trade and the only defense is a dated record of where you set it. The gate, operated by them, latching cleanly, with the hardware adjusted while you are standing there. And the leg measurements matching the invoice.

Then be specific about the warranty, because wood does things customers read as defects. Pressure-treated pine warps, checks, cups, and shrinks as it dries, and gaps opening between pickets in the first season are the material behaving normally rather than the fence failing. Your workmanship warranty covers plumb posts, square gates, and fasteners that hold. It does not cover the lumber’s moisture content, frost heave in ground you were told to set at a given depth, a vehicle backing into a section, or a neighbor’s tree root. Write those distinctions once, on the invoice, and you will not litigate them by text in March.

How do I collect at the gate on the last day?

On the spot, while you are both standing at the finished line.

Fencing has the best collection moment in the trades. Unlike concrete under a wall or drywall under primer, the deliverable is fully visible and completely finished on the final afternoon, and the customer is right there looking at it. Raise the invoice from the phone during the walk, with the leg measurements and the post count already on it, and let them scan the payment QR code before the trailer is loaded. Waiting until the weekend to type it up costs you the one moment when the work and the customer’s satisfaction are both at maximum.

Two backyard complications to settle before that afternoon. Find out early who is actually paying when a line is shared with a neighbor — a split invoice agreed at the start is administration, and a split invoice proposed at the end is an argument. And know your state’s mechanic’s lien and preliminary notice deadlines, because a fence is an improvement to real property and the lien is genuine leverage that the general sequence in how to get clients to pay sits on top of.

What records keep a fence job provable a year later?

The leg measurements, the utility-mark photos, the property pin or survey shot, the hole depth and spacing, the dated approvals for every extra, the numbered invoice, and the receipts behind the material.

Keel handles the paperwork end of that from the yard itself. It is an iOS app that runs entirely on the device — no account, no bank connection, no cloud, no login, and an App Store privacy label reading Data Not Collected — so an invoice raised behind a house with one bar of signal still produces a PDF with your own numbering series, logo, brand color, and a payment link rendered as a QR code. Lumber yard tickets, concrete mix, hardware, and dump receipts get photographed at the counter and read on device by Apple Intelligence, which is what makes a difficult-dig line defensible six months later. Miles between the yard, the job, and the dump get logged as you drive them, and the requirements behind that log are in IRS mileage log requirements. The ledger is append-only and hash-chained, so what you billed and when stays fixed. The whole year exports as one file, or as the Accountant Pack — a CSV plus a one-page summary PDF. Free is $0 with unlimited invoices, receipts, and mileage; Keel Pro is a one-time $249.99 Lifetime purchase, not a subscription. Keeping the supply tickets attached to their job is the same discipline as a contractor receipt organizer.

Frequently asked questions

How do you bill a backyard fence — by the linear foot or by the panel?

By the linear foot for the run, with gates and corner, terminal, and gate posts billed each, and the total post count shown as its own line. Linear feet is what the customer can verify with a tape, but it hides the number that drives your day. A 100-foot run takes 14 posts at 8-foot spacing and 18 at 6-foot spacing, which is four more holes and roughly nine more bags of concrete.

How much concrete does a fence post take?

Calculate the hole as a cylinder: π × radius² × depth in feet. A 10-inch hole 30 inches deep is 1.36 cubic feet, which is about two and a third 80 lb bags at roughly 0.6 cubic feet per bag. A 12-inch hole 36 inches deep is 2.36 cubic feet, or close to four bags. Subtract about 0.2 cubic feet for a 4x4 post and round up.

What should be itemized on a fence invoice besides the footage?

Post count with corners and terminals priced separately, gates each with hardware listed, concrete by the bag, old-fence removal in linear feet plus old footings each, difficult digging by the hour and dated, disposal by the load, spoil handling, permits and HOA submittals, and an access or haul-in line for a backyard where nothing can be driven to the fence line.

Do I have to call 811 before installing a fence?

Yes. Contacting 811 before digging is required by law in every state, including for fence posts, with a notice period your state’s one-call center sets and marks that expire after a set number of days. It locates public utilities only — private irrigation, low-voltage lighting, invisible pet fences, septic laterals, and a homeowner’s gas run to a grill are not marked, and your contract should say those are the owner’s to locate.

Should a fence follow the slope or step down it?

That depends on the material and it belongs on the estimate and the invoice in writing. Preassembled panels can only be stepped, which leaves a triangular gap under each panel on a slope. Stick-built fencing can be racked to follow grade with no gap, at real extra labor per bay. Customers who expected one and received the other raise it a year later, and the paperwork is the only answer.

When should a fence contractor invoice and collect payment?

On the final afternoon, on site, during the walk. Fencing is fully visible and complete the moment you finish, which is the strongest collection position in the trades — raise the invoice from your phone with the leg measurements and post count on it and let the customer scan the payment code before you load the trailer. Settle any neighbor cost-sharing at the start, never at the end.

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This article is general information, not professional or tax advice.