What this guide covers
This guide gives the working numbers first — stall width, stall length, square footage per space, aisle widths, and the geometry of 90, 60, and 45-degree layouts — then explains what moves them on a real site.
The distinction worth carrying through the whole article: the stall is not the space. A 9 by 18 ft stall is 162 square feet, but nobody reaches it without a drive aisle, and no lot works without entrances, islands, and walkways. Confusing the two is the most common error in early capacity math.
To put numbers on your own site, the parking lot size calculator turns acreage into a capacity range, and the parking ratio calculator handles the spaces-per-1,000-square-feet side that zoning codes are written in.
Ready to lay out or restripe real pavement? Compare parking lot striping contractors who mark stalls, aisles, and accessible areas.
Standard parking space dimensions
Ask ten jurisdictions for a standard parking space size and you will get ten answers inside a fairly narrow band. The band is the useful part, and 9 by 18 feet is where most site plans start.
The table below gives common planning ranges by space type — the dimensions a designer would sketch with before opening the code, not requirements.
| Space type | Typical width | Typical length | Approx. stall area |
|---|---|---|---|
| Standard | 8.5 – 9.5 ft (9 ft common) | 18 – 20 ft (18 ft common) | 153 – 190 ft² (162 ft² at 9 × 18) |
| Compact | 7.5 – 8.5 ft | 15 – 16 ft | 112 – 136 ft² |
| Oversized / large vehicle | 10 – 12 ft | 20 – 25 ft | 200 – 300 ft² |
| Truck, trailer, or RV | Set by the vehicle | Set by the vehicle | Varies substantially |
| Parallel (curbside) | 7.5 – 9 ft from the curb | 20 – 24 ft | 150 – 216 ft² |
Typical planning dimensions, not code minimums.
One caution before these numbers get used: 9 feet is a comfortable default in an era of full-size pickups and three-row SUVs, while 8.5 feet is tight enough that door dings and crooked parking become a management complaint rather than a design detail.
How wide is a standard parking space?
Nine feet, in most American commercial lots. The practical range is 8.5 to 9.5 feet, and width has more day-to-day consequence than any other dimension on the plan.
Width is measured centre to centre of the painted stripes, not between their inside edges. Stripes are commonly 4 inches wide, so a 9-foot stall measured edge to edge gives about 8 feet 8 inches of clear space. That detail matters when an existing lot is being restriped to a tighter layout and someone measures the old lines the wrong way.
What the width is really buying is door clearance. A full-size pickup is roughly 6.5 to 7 feet wide at the body; a compact car is closer to 5.8 feet. Nine feet leaves usable gaps on both sides for a door to open without contact. At 8.5 feet the margin gets thin for larger vehicles, and at 8 feet it is effectively gone for anything but a small car.
- 9.5 to 10 ft — medical and outpatient facilities, senior housing, home-improvement and warehouse-club retail: anywhere loading a cart or assisting a passenger is routine.
- 9 ft — the working default for general retail, office, multifamily, and mixed-use lots.
- 8.5 ft — long-stay employee lots, permit parking, and structured parking, where every foot of width is expensive and drivers are repeat users of the same lot.
- 8 to 8.5 ft — compact stalls, which most codes that allow them also cap as a percentage of the total.
A jurisdiction that mandates 9 feet has made the decision for you. One that allows 8.5 leaves a real trade between capacity and daily usability — worth making deliberately rather than by copying whatever the last lot used.
How long is a standard parking space?
Eighteen feet is the common planning length, with a working range of roughly 16 to 20 feet. Eighteen suits the large majority of passenger vehicles; 20 feet appears where full-size trucks dominate; 16 feet shows up in compact stalls and where a curb or landscape strip is there to receive the front overhang.
Length is where overhang changes the arithmetic. A parked car does not stop at the stripe — the front of the vehicle can extend roughly 2 feet past it. Where that 2 feet lands on a curb, a wheel stop, a landscape strip, or a walk wide enough to absorb it, some codes allow the paved stall depth to be reduced accordingly. Where it lands on a sidewalk that is already at its minimum width, the overhang blocks the pedestrian route and the reduction should not be taken.
- Curb versus wheel stop. A 6-inch curb stops a tire in the same place every time. A wheel stop does the same job mid-lot where there is no curb, but it becomes a trip hazard on a pedestrian route and a plow blade will find it.
- Walk width behind the overhang. A 5-foot walk with a 2-foot overhang across it leaves 3 feet, which is below what a usable accessible route needs.
- Landscape islands. An island at the head of a row can legitimately absorb overhang, which is one reason overhang credits and landscaping requirements often sit in the same section of an ordinance.
- Drainage. Shortening a stall moves the curb line, and the curb line is usually where the water is meant to go.
Overhang credits vary sharply between jurisdictions, so confirm the credit exists before a layout depends on it.
How many square feet is a parking space?
A 9 by 18 foot stall is 162 square feet. That answers the literal question and is the wrong number for almost every planning decision that follows it.
The stall is only the rectangle a car sits in. Reaching it requires a drive aisle, and the aisle belongs to the spaces it serves. Two rows of stalls sharing one aisle form a parking module: 18 feet of stall, 24 feet of aisle, 18 feet of stall, or 60 feet deep. Each stall consumes 9 feet of frontage along that module, so 60 × 9 = 540 square feet serving two spaces. That is 270 square feet per space, and roughly 40 percent of it is drive aisle.
A real lot then loses more area to things that are neither stalls nor aisles: entrance drives, end-of-row islands, perimeter setbacks, fire access, pedestrian routes, stormwater structures, and the simple fact that few parcels are clean rectangles. Once those are counted, the gross planning figure lands somewhere around 250 to 400 square feet per space, with most commercial layouts near 300.
| Measure | What it counts | Typical figure per space |
|---|---|---|
| Stall area | The striped rectangle only | 162 ft² at 9 × 18 ft |
| Module area | The stall plus its half of the drive aisle | About 270 ft² at 90 degrees |
| Gross planning area | The module plus entrances, islands, setbacks, walks, and site losses | About 250 – 400 ft², commonly near 300 |
Which figure you want depends on the question. Striping quantities and stall-area math use 162. Sizing a parking field uses the module rate. Sizing a parcel — or answering how much land 100 spaces needs — uses the gross rate, and 100 spaces at 300 square feet is 30,000 square feet, or roughly 0.69 acres of parking field before the building, the entry drive, or the detention basin.
The parking lot size calculator runs this in both directions: enter an area to get a capacity range and spaces per acre, or enter a target space count to get the land it requires. To measure an existing lot first, the parking lot square footage calculator handles irregular shapes.
Parking space dimensions by parking angle
The angle at which stalls meet the drive aisle changes three things at once: how deep the row is, how much frontage each stall consumes along the aisle, and how wide the aisle has to be. Those three move in different directions, which is why comparing angles on stall size alone tells you nothing.
The comparison below holds the stall constant at 9 by 18 feet and varies only the angle, so every difference is pure geometry. On a real site the stall may not stay constant: many ordinances permit an angled stall up to about a foot and a half narrower than a perpendicular one, because a driver enters it on a shallower line and needs less door swing. Where that is allowed, angled parking gives back some of the frontage the geometry below takes away.
| Parking angle | Row depth from the aisle | Frontage per stall | Module area per space | Circulation it suits |
|---|---|---|---|---|
| 90° (perpendicular) | 18 ft | 9.0 ft | About 270 ft² | Two-way aisles |
| 60° angled | About 20 ft | About 10.4 ft | About 300 ft² | One-way, usually |
| 45° angled | About 19 ft | About 12.7 ft | About 325 ft² | One-way, usually |
| Parallel | 7.5 – 9 ft from the curb | 20 – 24 ft of curb length | Varies with the aisle | Curbside and edge conditions |
Row depth and frontage are computed from the stall itself: row depth = stall length × sin θ + stall width × cos θ, and frontage = stall width ÷ sin θ. Module area assumes the aisle widths in the section below.
Read the frontage column first, because it is the one that decides capacity. At 45 degrees each stall eats 12.7 feet of a row that would have held a stall every 9 feet at 90 degrees. Angled parking buys an easier turn and a narrower aisle, and pays for it in cars.
What is perpendicular parking?
Perpendicular parking is parking at 90 degrees to the drive aisle: the vehicle sits at a right angle to the direction of travel, nose in or backed in. It is the default layout for American commercial parking lots. Perpendicular parking and 90-degree parking are the same thing named from two directions — one names the angle, the other names the relationship to the aisle.
It is the densest of the common layouts because a perpendicular stall consumes only its own width along the row. It also works with two-way aisles, so a lot can be served by fewer aisles overall, and drivers can approach a row from either end rather than being routed around a one-way loop.
- Large, roughly rectangular sites, where long uninterrupted rows let the density advantage actually appear.
- Two-way circulation, which most retail and office lots want so customers are not forced through a full loop to reach a near stall.
- Sites where capacity is the binding constraint, usually because a zoning minimum or a lease is driving the count.
- Lots with heavy turnover, since a driver can enter the row from whichever end they arrive at.
The trade is the turn. Entering a perpendicular stall takes roughly a 90-degree steer off the aisle, which is why the aisle has to be wide — commonly 24 feet for two-way traffic — and why perpendicular parking feels awkward in a narrow or crowded lot. Backing out puts the driver broadside into the aisle with sightlines blocked by the vehicles on either side, which is the classic low-speed parking lot collision.
On a constrained or awkwardly shaped site, an angled layout can occasionally fit more usable cars than a perpendicular one, simply because the perpendicular layout needs an aisle the site cannot give it. And this is a layout comparison rather than a safety verdict: circulation design, sightlines, pedestrian routing, and speed control matter more to how a lot performs than the angle by itself.
60-degree angled parking dimensions
Sixty degrees is the usual compromise angle. Against perpendicular, the row gets a little deeper, each stall eats about a foot and a half more frontage, and the aisle narrows by six feet — a few cars traded for a much easier turn. The stall stays nearly square to the aisle, so it still holds a full-size vehicle without the long diagonal a shallower angle produces, and the driver steers roughly 60 degrees instead of 90, which shortens the maneuver and cuts the number of people who need a second attempt.
It is normally paired with one-way circulation, and that is a design commitment rather than a striping detail. Once aisles are one-way, the arrows, entrances, exits, and signage all have to agree with the stall direction — and because the stalls physically face one way, a driver who takes an aisle backwards has nowhere to park.
Sixty-degree layouts suit long, narrow sites, where a 24-foot two-way aisle would consume the width a row of stalls needs.
45-degree angled parking dimensions
Forty-five degrees costs the most frontage per stall of the three angles, which is why it fits the fewest cars in a given area, and buys the narrowest aisle in exchange.
The maneuver is the easiest of any angled layout. A driver turning into a 45-degree stall barely leaves the line of travel, which is why the angle turns up where drivers are unfamiliar, hurried, or driving something large: strip-centre frontage, service and fleet parking, and lots where vans and pickups are the norm rather than the exception.
The narrow aisle is what makes 45 degrees viable on tight sites. A parking bay that cannot hold a perpendicular module of 18 + 24 + 18 feet may still hold a 45-degree module of 19 + 13 + 19 feet, which is 51 feet rather than 60. Fewer cars per square foot, but the row exists at all.
One-way circulation is effectively assumed here too, and the rest of the site plan has to route drivers accordingly.
Parallel parking dimensions
Parallel stalls are dimensioned along a different axis. The vehicle sits parallel to the curb, so the controlling dimension is length rather than depth. Common planning figures are 7.5 to 9 feet wide measured out from the curb face, and 20 to 24 feet long.
The extra length past the vehicle is maneuvering room: a 22-foot stall is roughly 16 feet of car and 6 feet of room to swing in and pull out. End stalls, where a driver can pull straight in from an open end rather than reversing between two vehicles, are sometimes allowed to be shorter.
Requirements vary more between jurisdictions for parallel parking than for any other layout, because parallel stalls usually sit in the public right of way, where the street standard, the transit stop, the bike lane, and hydrant and driveway clearances all have a claim on the same curb. On private property, parallel stalls typically appear along drive aisles, service frontages, and building edges where a full parking bay will not fit.
This is the layout where a generic planning number is most likely to be wrong, so check the local standard before dimensioning parallel stalls.
How wide should a parking lot aisle be?
There is no single answer, because aisle width is a function of the parking angle and the direction of traffic. A perpendicular stall needs a wide aisle to turn into; an angled stall needs less. A two-way aisle needs room for two vehicles to pass; a one-way aisle does not.
The ranges below are the figures used to seed most early layouts.
| Parking angle and traffic | Typical planning range | What the width is for |
|---|---|---|
| 90°, two-way | 22 – 26 ft (24 ft common) | A full 90-degree turn into the stall, plus two-way passing |
| 90°, one-way | 20 – 24 ft | Still a 90-degree turn; width is about the maneuver, not passing |
| 60°, one-way | 16 – 20 ft (18 ft common) | A shorter steer into the stall |
| 45°, one-way | 12 – 15 ft (13 ft common) | The shallowest turn of the three angles |
| Parallel or no adjacent stalls | 12 – 20 ft | Travel width only; two-way needs the upper end |
| Aisle serving as a fire lane | Commonly 20 ft minimum, often more | Set by the fire code, not by the parking layout |
Typical planning ranges only, not code requirements. Final aisle widths must be verified against the zoning ordinance and the fire code adopted in your jurisdiction. Fire access requirements frequently govern and can exceed every figure above.
Two things regularly push an aisle wider than the parking geometry alone would suggest. The first is fire access: an aisle that doubles as a fire lane is dimensioned by the fire code, including turning radii and clearance to the building, and that requirement wins. The second is service vehicles — refuse trucks, box trucks, and delivery vans need room to reach a dumpster enclosure or a loading door and then get back out, and an aisle that works fine for cars can be unusable for the truck that visits every Tuesday.
Narrowing an aisle to fit one more row is the most tempting move in a tight layout, and the one most likely to come back from plan review.
Compact parking space dimensions
Compact stalls are commonly planned at 7.5 to 8.5 feet wide and 15 to 16 feet long — roughly 112 to 136 square feet against 162 for a standard stall. The saving is real: a row of compact stalls fits about one extra car for every eight standard ones.
Compact parking exists because a meaningful share of vehicles genuinely do not need a full stall, and because zoning minimums sometimes demand more spaces than a site can comfortably hold at standard size. Where the vehicle mix supports it, compact stalls put the required count on the property.
The case has weakened. The average American passenger vehicle has grown substantially over recent decades, and pickups and SUVs now dominate new sales. A 7.5-foot stall that suited a 1990s sedan fleet is a source of complaints in a lot where a third of arrivals are full-size trucks: drivers who cannot fit simply take standard stalls, and the compact row sits half empty beside a full one.
- Most codes cap the share. Where compact stalls are permitted at all, a maximum percentage of the total is common, and some jurisdictions no longer allow them.
- Signage decides whether they work. Unmarked compact stalls become undersized standard stalls the day they are striped.
- Placement matters more than count. Compact stalls belong in employee areas and long-stay rows, not at the storefront where turnover is highest and every arrival is a first-time driver in that lot.
- They are not a capacity strategy on their own. Converting a lot to compact stalls to reach a required count usually trades a code problem for a management problem.
Confirm whether compact stalls are permitted, and at what percentage, before a layout depends on them.
Commercial parking space dimensions
Commercial lots mostly use the same stall dimensions as everyone else. Nine by eighteen feet is as ordinary in a retail centre as in an apartment complex. What differs between commercial property types is not the stall — it is everything around it.
| Property type | What tends to drive the layout | Common dimensional response |
|---|---|---|
| Retail and grocery | High turnover, shopping carts, families loading | 9 – 10 ft stalls near entrances, cart corrals planned into rows, generous aisles |
| Office | Long-stay parking, low turnover, known users | 9 ft stalls; compact stalls more workable in far rows |
| Medical and outpatient | Assisted transfers, wheelchairs, higher accessible demand | Wider stalls near entrances, and often more accessible spaces than the federal minimum |
| Multifamily | Assigned and guest parking, vehicles that sit for days | 9 ft stalls, oversized stalls for trucks, tandem stalls where a code allows them |
| Industrial and warehouse | Trucks and trailers plus shift-change employee peaks | Standard employee stalls kept separate from truck and trailer areas |
| Mixed-use | Different peak hours per tenant, shared parking | Standard stalls, with the count driven by a shared-parking analysis |
This is also where two related questions get confused. Parking space dimensions set the physical size of each stall. Parking ratio sets how many stalls are required relative to building area — spaces per 1,000 square feet — which is the language zoning ordinances, leases, and lender standards are written in. A property can have perfectly dimensioned stalls and still fail a ratio requirement, or satisfy the ratio with stalls nobody can comfortably use.
Run the ratio side with the parking ratio calculator and the geometry side with the parking lot size calculator.
Accessible parking space dimensions
Accessible parking is the one part of this article where the dimensions are not planning ranges. The 2010 ADA Standards for Accessible Design set federal minimums, and state and local codes can require more but never less.
Under those federal standards, a car accessible space is at least 96 inches (8 feet) wide with an adjacent access aisle at least 60 inches (5 feet) wide. A van accessible space is at least 132 inches (11 feet) wide with a 60-inch access aisle, or at least 96 inches wide with a 96-inch access aisle. The access aisle must be at least as long as the spaces it serves.
| Element | Federal minimum | Note |
|---|---|---|
| Car accessible space | 96 in (8 ft) wide | Plus an adjacent access aisle |
| Van accessible space | 132 in (11 ft) wide, or 96 in paired with a 96-in aisle | At least one of every six accessible spaces, minimum one |
| Access aisle | 60 in (5 ft) wide, and as long as the space it serves | 96 in where it serves a 96-in-wide van space |
| Slope of space and aisle | No steeper than 1:48, about 2.08%, in any direction | Applies to running slope and cross slope alike |
| Identifying sign | Bottom of the sign at least 60 in above the ground | Van spaces additionally designated van accessible |
Federal minimums from Section 502 of the 2010 ADA Standards for Accessible Design. State and local requirements can be stricter, and some facility types are scoped differently. This is a summary for planning, not a compliance determination.
Several requirements beyond the stall dimensions belong to the same section, and they are where existing lots most often fail. Access aisles have to be marked so they read as no-parking. Two spaces may share one access aisle, but for angled van spaces the access aisle has to be on the passenger side. Accessible spaces must sit on the shortest accessible route to the entrance they serve, and that route itself has to be accessible — curb ramps, level landings, no steps.
The slope limit deserves particular attention on existing pavement. Accessible spaces and aisles cannot slope more than 1:48 in any direction, and lots built before that constraint was considered routinely exceed it. Repainting does not change slope; correcting it means grinding, a localized overlay, or a concrete pad.
How many accessible spaces a lot needs is a separate calculation driven by the total space count rather than a flat percentage. Use the ADA parking space calculator for the federal baseline, and ADA parking requirements for property owners for the full scope. If someone has proposed solving an accessibility finding with paint, can striping alone fix ADA parking compliance? is the relevant read.
Nothing here is legal advice or a compliance determination. Accessibility requirements are enforced against the facts of a specific site, and a qualified accessibility professional should confirm any design.
What changes stall dimensions on a real site
A layout on paper is uniform. A striped lot never is, because the site keeps interrupting the rows. These are the conditions that most often move a stall, shrink it, or delete it.
- Wheel stops and curbs fix where a vehicle stops. A wheel stop set at 16 feet makes an 18-foot stall behave like a 16-foot one — intentional where overhang is available, a problem where it is not.
- End-of-row islands take one or two stalls each, and are usually required by the landscaping ordinance rather than the parking one.
- Light poles standing inside a stall are a recurring find on restriping walks. The base occupies part of the stall, so the stall moves or disappears.
- Cart corrals consume one to two stalls apiece and belong in the layout, not wherever they ended up after opening day.
- Dumpster enclosures need a straight approach and clear backing room for a refuse truck, which usually costs more stalls than the enclosure footprint suggests.
- Catch basins and drainage structures sit where the grade sends water, and a stall striped across a low point holds standing water in it.
- Loading zones, fire lanes, and pedestrian routes take stall frontage and cannot be striped over.
- Striping tolerance is real. Small errors accumulate along a long row, which is why layouts are set from measured control points rather than by stepping stall widths down the line.
This is why the count on a drawing and the count on the pavement disagree, and why a striping contractor walking an existing lot often produces a different number than the geometry suggests. When a layout is ready to quantify, the parking lot striping takeoff tool measures stall lines and specialty markings section by section.
How parking space dimensions affect parking lot capacity
Small dimensional changes compound across a lot, and the compounding is easy to underestimate. Take a 300-foot row: at 9-foot stalls it holds 33 stalls, and at 8.5 feet it holds 35. Two cars. Now run twelve rows and that same half foot is worth roughly 24 spaces — potentially the difference between meeting a parking ratio and not.
It runs the other way too. Widening from 9 to 9.5 feet across the same twelve rows costs about 20 spaces, which is a decision worth making explicitly rather than discovering in plan review.
But stall width is not where most capacity is won or lost. The aisle takes about 40 percent of every module. The parking angle moves area per space by roughly 20 percent between 90 and 45 degrees. And site losses — entrances, islands, setbacks, fire access, stormwater, irregular shape — routinely take 15 to 30 percent off the theoretical pack. A layout that shaves stall width while ignoring those is optimizing the smallest variable in the equation.
Use the parking lot size calculator to estimate how many vehicles may fit based on available acreage, lot dimensions, and parking layout, to compare 90, 60, and 45-degree layouts on the same site, or to work backwards from a target space count to the land it needs.
For the layout side on existing pavement, parking lot striping contractors can confirm what actually fits, and the parking lot striping and layout guide covers how a restriping layout gets planned. One caution about all capacity math, ours included: it estimates. A civil engineer produces the buildable, code-compliant layout, and that is the count to commit to.
Verify the dimensions that apply to your site
Every number in this article is a planning figure. None is a national standard, because there is no national standard for parking stall dimensions in the United States. The requirement comes from the jurisdiction, and it can differ between two towns on opposite sides of the same road.
Before a layout is drawn, priced, or striped, confirm the following from sources that actually govern:
- The zoning ordinance for the parcel: minimum stall width and length, aisle widths by angle, whether compact stalls are permitted and at what percentage, and any overhang credit.
- The fire code adopted locally: apparatus access width, turning radii, and where fire lanes must be marked and kept clear.
- Accessibility requirements — the federal ADA standards plus any stricter state or local code, and any scoping specific to the facility type.
- Landscaping and stormwater requirements, which take area out of the parking field before a single stall is drawn.
- The design standard the project is built to, which may be stricter than code: a franchise standard, a lender requirement, or a corporate prototype.
- For an existing lot, what is physically there: measured stall widths, actual slopes in accessible areas, and where the drainage structures, poles, and utility lids sit.
A site plan approved by the jurisdiction is what settles the dimensions. Everything before that, including this guide, is planning.
Frequently asked questions
What is the standard size of a parking space?
Most American commercial lots plan a standard parking space at 9 feet wide by 18 feet long, which is 162 square feet of stall area. The common range is 8.5 to 9.5 feet wide and 16 to 20 feet long. There is no national legal standard — the governing dimensions come from the local zoning ordinance and the design standard the project is built to.
What are standard parking spot dimensions?
Parking spot, parking stall, and parking space all describe the same thing, and the same dimensions apply: commonly 9 feet by 18 feet, within a range of 8.5 to 9.5 feet wide and 16 to 20 feet long. Stall is the term more common in striping and construction documents; space is the term more common in zoning ordinances.
What is the minimum width of a parking space?
It depends entirely on the jurisdiction, which is why a single national minimum does not exist. In practice, standard stalls are rarely planned below 8.5 feet, and compact stalls run 7.5 to 8.5 feet where a code permits them. Accessible spaces are different: the federal minimum is 96 inches, or 8 feet, plus an access aisle. Read the ordinance for your parcel before assuming any minimum.
How big is a compact parking space?
Commonly 7.5 to 8.5 feet wide by 15 to 16 feet long, or roughly 112 to 136 square feet against 162 for a standard stall. Most codes that permit compact stalls also cap them at a percentage of the total, and some no longer permit them at all, because the vehicle mix that justified them has shifted toward larger trucks and SUVs.
How much area does one parking space require including aisles?
About 270 square feet at 90 degrees with 9 by 18 foot stalls and a 24-foot aisle, because the aisle is shared between the two rows it serves. Angled layouts use more: roughly 300 square feet at 60 degrees and 325 at 45. Those are module figures — once entrances, islands, setbacks, and walkways are counted, plan on 250 to 400 gross square feet per space.
Are parking space dimensions the same everywhere?
No. The United States has no national parking stall standard. Minimum stall width and length, aisle widths, compact stall allowances, and overhang credits are all set locally, and neighbouring jurisdictions frequently differ. The figures in this guide are typical planning dimensions used to start a layout; the ordinance governing your parcel is what controls the final design.
What size parking space should a commercial parking lot use?
Nine by eighteen feet is the usual commercial default, moving toward 9.5 or 10 feet wide near entrances at retail, grocery, medical, and home-improvement properties where carts, loading, and assisted transfers are routine. Long-stay office and employee lots can work at 8.5 feet. Confirm the local minimum first, then choose within what it allows based on how the property is actually used.
How many parking spaces fit in an acre?
Roughly 110 to 147 spaces per acre for a 90-degree layout with 9 by 18 foot stalls and a 24-foot aisle, with a typical site near 133. Angled layouts fit fewer: about 98 to 131 at 60 degrees and 91 to 122 at 45. The spread is site efficiency — shape, entrances, islands, and setbacks. Dividing an acre by 162 square feet gives 268, which assumes nobody ever drives to a space.
What are the dimensions of an accessible parking space?
Under the 2010 ADA Standards, a car accessible space is at least 96 inches wide with an access aisle at least 60 inches wide. A van accessible space is at least 132 inches wide with a 60-inch aisle, or at least 96 inches wide with a 96-inch aisle. The aisle must be as long as the space it serves, and neither the space nor the aisle may slope more than 1:48 in any direction. State and local codes can require more.
Does a 9-foot parking space fit a full-size pickup truck?
Yes, with room to open a door. A full-size pickup is roughly 6.5 to 7 feet wide at the body, so a 9-foot stall leaves about a foot on each side. Length is the tighter constraint: a crew-cab long-bed can exceed 20 feet, so it will overhang an 18-foot stall — fine against a curb or landscape strip, a problem where it hangs into a walkway or aisle.
Before you hire: The Pavement Directory does not provide legal or compliance advice. ADA and accessibility requirements vary by site, jurisdiction, and project scope. Contractors may perform striping, grading, concrete, or asphalt corrections, while CASp inspectors or accessibility consultants may be needed for compliance review. Consult qualified professionals when compliance is material.
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