Fence Square Footage Calculator
Linear feet in, square feet out — by height, by face, and priced both ways at once.
A fence is measured in linear feet and cleaned in square feet, and those two numbers stop agreeing the moment the height changes. Enter the runs, set the height, choose one face or two, and see exactly what you're quoting — plus the gallons of mix it takes and what your rate makes it worth.
Free calculator · No sign-up · Built for pressure washing contractors
Measure the Fence
Add a run for each stretch at a different height. The calculator returns linear feet, surface area, mix volume, and the job priced per linear foot and per square foot side by side.
1 · Measure the runs
Split the fence wherever the height changes or the style changes. A back run of 6 ft privacy and a front run of 4 ft picket are two different jobs on one property.
2 · Height and faces
Faces to clean
A fence sitting on the property line usually gets one side — you have no right to walk the neighbor's yard. A fence fully inside the yard gets two, and that doubles both the time and the chemical.
Surface area to clean
0sq ft
0 linear ft
0 sq ft per face
3 · Price it both ways
Priced per linear foot
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Priced per square foot
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Fence runs are linear, so they get walked or counted off panels — no satellite tool measures them for you, this one included. Where the property view earns its keep is everything else on the quote: the driveway, the patio, the walkways and the pool deck are flat, and you can trace each one from satellite in about a minute. Add the fence number from above and the whole property is priced in one sitting.
Linear Feet Describe the Run. Square Feet Describe the Job.
Every fence carries two numbers, and contractors habitually quote the first while doing the work implied by the second. Here is the same fence measured both ways.
Now change one thing. Leave the 160 linear feet exactly as they are and make the fence 8 ft instead of 6. The run hasn't moved — it's still 160 feet of walking, still the same number of posts, still the same drive across town. But the surface went from 1,920 sq ft to 2,560, and the time on site went with it.
A per-linear-foot rate charges the same for both. At $3.00 a foot, that fence is $480 whether it's three feet tall or eight, which means one of those two jobs is paying for the other. This is not an argument against linear pricing — it's fast, and customers understand it. It's an argument for holding a different linear rate per height band, and for checking it against square footage before you commit.
The calculator above prices the job both ways at once for exactly this reason. When the two numbers agree, your linear rate is calibrated for the fence in front of you. When they diverge, the gap is telling you which direction you're off in.
How to Calculate Fence Square Footage
Three multiplications. The difficulty isn't the arithmetic — it's remembering that the height and the face count are part of it.
Gates get counted, not subtracted. A gate is a panel that happens to swing — you wash it the same way and it takes marginally longer because of the hardware. Leave it in the run.
Sealing or staining the fence after the wash? The deck calculator covers the same coating-coverage question for horizontal wood, and the arithmetic transfers directly.
How Big Is a Typical Fence?
Six common residential fence jobs, with the surface area worked out at both faces. Use these to sanity-check a number you just calculated — not as a substitute for walking the run.
| Fence | Run | Height | Both faces |
|---|---|---|---|
| Front picket only · 60 lf @ 4 ft | 60 lf | 4 ft | 480 sq ft |
| Pool enclosure · 100 lf @ 5 ft | 100 lf | 5 ft | 1,000 sq ft |
| Small back yard, 3 sides · 120 lf @ 6 ft | 120 lf | 6 ft | 1,440 sq ft |
| Standard back yard, 3 sides · 160 lf @ 6 ft | 160 lf | 6 ft | 1,920 sq ft |
| Large back yard, 3 sides · 220 lf @ 6 ft | 220 lf | 6 ft | 2,640 sq ft |
| Full perimeter, small lot · 300 lf @ 6 ft | 300 lf | 6 ft | 3,600 sq ft |
Compare the first two rows. The pool enclosure is 1.7× the run of the front picket but 2.1× the surface, because that extra foot of height multiplies across every one of those linear feet. Run length on its own tells you almost nothing about the size of the job.
How to Measure a Fence for a Quote
Four steps, and three of them happen before you touch a measuring wheel.
Split it into runs before you measure anything
Every place the height changes or the style changes is a boundary between two runs. A back yard fenced in 6 ft privacy with a 4 ft picket return along the driveway is two runs, two heights, two multiplications. Averaging them into one number is the single most common fence estimating error.
Count panels instead of wheeling, where you can
Pre-built privacy panels are almost always 8 ft wide, and posts sit on the same centres. Counting eleven panels is faster and more accurate than wheeling 88 ft over uneven ground, and it works from outside the gate. Custom-built board fence has no panels — wheel that one.
Measure height at grade, not at the post
Fence heights are sold as nominal — a 6 ft fence is 6 ft of picket. On sloped ground the exposed height varies along the run, and the posts stand proud of the pickets. Measure from grade to the top of the boards at a typical point, and if the slope is severe enough that one end is a foot taller, split it into two runs.
Settle the access question in the driveway
Ask which sides you have access to before you write a number, not after. Boundary fences generally get one face; a fence inside the yard gets two. Getting this wrong doesn't cost you a percentage — it doubles or halves the entire job, and it is the fastest route to an argument at the end of the day.
Same Square Footage, Different Job
The area calculation doesn't change by material. Everything downstream of it does — the pressure, the mix, and how long 1,000 square feet takes you.
Wood privacy — cedar, pine, spruce
Soft, porous, and easy to furr up. Takes a low-pressure soft wash rather than a turbo nozzle, which means chemistry and dwell time carry the job instead of the machine. Grey, weathered wood also drinks noticeably more mix than a fence washed last season.
Vinyl and composite
Non-porous, tolerant of more pressure, and it rinses clean. The same 160 linear feet moves far quicker than wood, which is exactly why a single linear-foot rate across both materials quietly overcharges one customer and underpays you on the other.
Chain link
A wire mesh is mostly air, so a pass from one side carries through and does real work on the other. Quote the plane area, but understand that the second face here is a touch-up rather than a second full pass — unlike wood or vinyl, where it genuinely doubles the labour.
Wrought iron and aluminium
Low surface area, high edge count. The plane calculation overstates the material and understates the fiddliness — every picket has four sides and the rails collect grime in the corners. Price these by time, then check the result against the square footage rather than the other way round.
Stone, brick, and masonry walls
Measured the same way — run × height × faces — but cleaned like flatwork, with surface-cleaner-adjacent technique and a different mix. Worth splitting into its own line item so the customer can see what they're paying for.
Mixed-height runs
Stepped fences on sloped ground, a 4 ft front return meeting a 6 ft side, a 8 ft privacy section behind a pool. Measure each stretch separately and add the results — averaging the height across the whole property is where fence quotes go wrong most often.
What to Charge to Wash a Fence
Fence work sits awkwardly between two pricing habits, and the market publishes numbers in both. Here is the range, and then the part that matters more than the range.
$2–$5
Per linear foot
For a 6 ft fence
$0.15–$0.40
Per square foot
Of surface cleaned
$180–$300
100 ft privacy fence
Typical finished ticket
Those two rates are the same rate wearing different clothes. A 6 ft fence cleaned on both faces carries 12 square feet of surface per linear foot, so $3.00 per linear foot and $0.25 per square foot produce an identical number on that fence — and diverge on every other one. That is why the calculator above shows both: at your standard fence they should match, and the size of the gap on an unusual fence is the size of your mispricing.
The condition multiplier is bigger on fences than almost any other surface. A fence washed last year rinses; a north-facing wood fence carrying five years of green algae needs dwell time, a second application in places, and a much more careful touch to avoid furring the grain. Heavily soiled work commonly carries 25–50% more, and on wood that is not padding — it is the actual extra time.
Finally, the minimum. Fence jobs are frequently small, and a 60 ft picket run at any sensible rate does not cover a truck rolling out. Either bundle it with the rest of the property or hold a minimum that reflects your drive time — the minimum charge guide covers where to set it and how to present it without losing the job.
Price ranges reflect commonly published U.S. residential fence cleaning rates as of August 2026. Material, condition, access, and regional labour costs move them significantly — treat them as orientation, not as a quote.
The rest of the quote
A fence alone barely covers the drive
Fence runs have to be walked — no satellite view shows you a height. But everything flat on that property can be traced from overhead in about a minute each: the driveway, the walkways, the patio, the pool deck. Walk the fence once, trace the rest from the map, and the whole property goes out as one number instead of a $200 ticket.
Fence Square Footage — Common Questions
Linear feet, square feet, one face or two — settled.
Linear feet × height gives you the area of one face. Multiply by the number of faces you're cleaning — usually two — for the total surface area. A 160 ft run of 6 ft fence is 960 sq ft per face, or 1,920 sq ft cleaned on both sides. Split the calculation wherever the height changes: a back run of 6 ft privacy and a front run of 4 ft picket are two separate multiplications, not one average.
Multiply the linear feet by the fence height in feet. 100 linear feet of 6 ft fence is 600 square feet of face. The part people miss is that this only describes one side — if you're cleaning or staining both faces, the real working area is double, so that same 100 ft run is 1,200 square feet of work. Linear feet describe the run; square feet describe the job.
Per square foot is the more honest measure, because it's the only one that responds to height. A linear-foot rate charges identically for a 3 ft picket and an 8 ft privacy fence even though the taller one is more than twice the work. Per linear foot is still fine — it's faster to quote and customers understand it — as long as you hold separate rates for each height band rather than one rate for every fence. Set the calculator above to your rate both ways and the gap between the two numbers tells you whether your linear rate is calibrated for the fence in front of you.
Published U.S. rates for a 6 ft fence commonly run about $2 to $5 per linear foot, or roughly $0.15 to $0.40 per square foot of surface. A 100 ft privacy fence typically lands somewhere between $180 and $300. Wood is slower than vinyl because it takes lower pressure and more care, heavily weathered or mildewed fence adds 25–50%, and a fence that has to be cleaned from one side only isn't half the price — you still make the drive and the setup.
It depends on who owns the ground on the other side. A fence sitting on the property line typically gets the customer's face only, because you have no right to work in the neighbour's yard without their permission. A fence fully inside the yard — a pool enclosure, a garden divider, a run set back from the boundary — gets both faces, and that doubles both the time and the chemical. Always confirm this before you quote, because assuming two faces and getting access to one is the fastest way to a dispute mid-job.
For cleaning, no — treat the fence as a solid plane and quote it that way. You're moving the wand across the whole run at the same rate whether there's a gap every four inches or not, and the gaps don't save you time; they just let overspray through. For staining or sealing it's a different question, because gaps genuinely reduce the material you buy even though they increase the edges you have to coat. This calculator gives you the plane area, which is the right basis for a wash.
Wood fence absorbs roughly one gallon of mixed solution per 175 square feet, so a 1,920 sq ft fence takes about 11 gallons. Dry, grey, weathered wood drinks more and pulls toward 150 sq ft per gallon; sealed or vinyl fence stretches toward 200. Wood also wants a much gentler mix than a roof — around 0.5–1% — so work the strength out before you load rather than reaching for the house-wash jug.
Not reliably, and it's worth being straight about that. Satellite views show flat surfaces well and vertical ones not at all — a fence reads as a thin line or a shadow, and the height that drives the whole calculation is invisible from overhead. Fence runs get walked, wheeled, or counted off panels. Where remote measurement does earn its keep on the same property is the flatwork: the driveway, walkways, patio and pool deck are all flat, and those you can trace from satellite in about a minute each.
SurfaceMeasure starts with 1 free measurement — no credit card required. Paid plans are $9.99 per month or $99.99 per year. The fence calculator on this page is free and needs no account.
Related Resources
Everything else that goes into quoting a residential exterior cleaning job.
Turn a Fence Job Into a Property Job
You already walked the yard. Pull the address up on satellite, trace the driveway, the walk and the patio, and quote all of it before you leave. 1 free measurement, no card required.
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House Washing Square Footage Calculator →