What are the standard dimensions of a wheel stop?

A standard wheel stop is 6 feet long, 6 inches tall, and 6 to 9 inches wide. This dimensional combination handles standard passenger stalls and is the most widely available size from rubber, concrete, and plastic manufacturers.

Are 4-foot or 6-foot wheel stops better?

6-foot wheel stops are better for standard passenger and SUV stalls because the longer length engages both tires off-center. 4-foot stops are appropriate for compact-only stalls and cost-constrained projects where local code allows shorter blocks.

What size wheel stop does ADA require?

ADA 502.7 does not specify wheel-stop dimensions. It requires that the stop not encroach into the 60-inch-wide access aisle and that it allow at least 12 inches of bumper-to-aisle clearance. A standard 6-foot block at 30-inch setback meets both rules.

How wide should a wheel stop be for a fleet yard?

Fleet yards with Class 3 to Class 7 vehicles should use 8 to 12-inch-wide wheel stops. Class 8 trailers need 10 to 14-inch widths. The wider footprint resists pin pull-out and tipping under repeated higher-mass impacts.

Wheel Stop Dimensions: Standard, ADA & Heavy-Duty Specifications

Q: How tall should a wheel stop be?

A wheel stop should be 4 to 6 inches tall. The 4-inch height is the IBC minimum for parking-bumper effectiveness; 6 inches is preferred. Anything taller than 7 inches risks striking low-clearance vehicle bumpers like Tesla Model S or BMW i3.

What Are the Standard Wheel Stop Dimensions?

A standard parking-lot wheel stop measures 6 feet long, 6 inches tall, and 6 to 9 inches wide. The 6-foot length engages both tires of a passenger vehicle parked in a standard 8-to-9-foot stall, the 6-inch height stops the tire without striking the front bumper, and the 6-to-9-inch width provides enough mass and pin spacing to resist impact. ADA 502.7 governs placement and clearance but not dimensions; the 6-foot baseline comes from the ITE Parking Generation Manual and IBC Section 1106.

This guide provides exact dimensional specs for every wheel-stop class - passenger, ADA, fleet, and industrial - plus the dimensional implications for installation tooling and pin selection.

Why Do Wheel Stop Dimensions Matter?

A wheel stop that is too short does not engage both tires; the driver can pull past it on one side. Too tall, and the stop strikes low-bumper vehicles like Tesla Model S, BMW i3, and other sports cars. Too narrow, and the pins pull out under impact. Each dimension trades off against another, and the right combination depends on the stall use case.

The Cojo crew restriped a Hillsboro corporate campus in February 2026 - 320 stalls, 280 passenger and 40 SUV. We specified 6-foot rubber blocks at 6-inch height across all stalls because the campus parking-policy team wanted dimensional consistency for striping symmetry. Three months in, no bumper strikes reported on the standard 6-inch height even with the SUV mix.

What Are the Three Critical Dimensions?

Length

Application	Length
Compact stall (8-foot wide)	4 feet
Standard passenger stall	6 feet
ADA accessible stall	6 feet
SUV / light truck	6 feet
Fleet / dock	6 to 8 feet
Trailer / semi parking	8 to 10 feet

Block length should be 1.5 to 2 feet shorter than stall width to leave clearance for door swing and pedestrian walking past parked cars. A 6-foot block in a 9-foot stall leaves 1.5 feet on each side.

Height

Application	Height
IBC minimum	4 inches
Industry standard	6 inches
Maximum (passenger stall)	7 inches
Heavy-duty / fleet	6 to 8 inches
Industrial / semi	8 to 10 inches

A 4-inch height is the IBC minimum for parking-bumper effectiveness. 6 inches is preferred. Anything taller than 7 inches risks bumper strike on low-clearance vehicles.

Width

Application	Width
Light-duty rubber	6 inches
Standard rubber or concrete	7 to 9 inches
SUV / light truck	7 to 9 inches
Fleet / dock	8 to 12 inches
Industrial / semi	10 to 14 inches

Wider blocks resist tipping under impact and provide more pin-spacing options. Narrower blocks save material cost but tip more easily under shock loads.

How Do Dimensions Vary by Material?

Material	Standard Length	Standard Height	Standard Width	Weight (6-foot)
Recycled rubber	6 feet	4 to 6 inches	6 to 9 inches	30 to 50 lbs
Concrete	6 feet	4 to 6 inches	7 to 10 inches	200 to 280 lbs
Plastic / polymer	6 feet	4 to 6 inches	6 to 9 inches	25 to 38 lbs
Asphalt-bonded composite	6 feet	5 to 6 inches	7 to 10 inches	130 to 180 lbs

Concrete blocks are the heaviest and most stable but crack under impact. Rubber and plastic are lighter and impact-resistant but more often pull out under shock loads. See our wheel stop concrete vs rubber breakdown for the full material comparison.

What Are the Pin Hole Dimensions?

A standard 6-foot wheel stop has 2 or 3 pre-cast holes for steel pin anchors:

2-hole blocks: holes 12 inches in from each end, 5/8-inch diameter, 4 inches deep through the block.
3-hole blocks: holes 12 inches from each end plus one centered, 5/8-inch diameter.

Pin diameter (typically 5/8 inch) must match the hole diameter within 1/16 inch. Looser fit allows the block to rock under impact and elongate the hole. Pin length runs 12 to 18 inches with 14 inches of substrate engagement after passing through the block.

What Does ADA 502.7 Say About Wheel Stop Dimensions?

ADA 502.7 governs wheel stops as obstructions, not as sized components. Two rules apply:

The wheel stop must not encroach into the 60-inch-wide access aisle of an accessible parking space.
The wheel stop must allow the parked vehicle's bumper to clear the access aisle by at least 12 inches.

A standard 6-foot block, set 30 inches from the curb in a 9-foot accessible stall, satisfies both rules. The block's height (4 to 6 inches), width (6 to 9 inches), and length (6 feet) are not regulated.

How Do Heavy-Duty Dimensions Differ?

Fleet yards, dock aprons, and intermodal-yard wheel stops carry repeated higher-mass impact loads. Cojo's industrial spec for these locations:

Application	Length	Height	Width	Notes
Class 3 to 5 trucks (delivery)	6 to 8 feet	6 to 8 inches	8 to 10 inches	Reinforced concrete or steel-cored rubber
Class 6 to 7 trucks	8 feet	7 to 9 inches	9 to 12 inches	Steel-reinforced concrete
Class 8 trucks / trailers	8 to 10 feet	8 to 10 inches	10 to 14 inches	Industrial cast concrete with double-pin anchor

The Cojo crew installed 24 industrial-spec 8-foot concrete wheel stops at a Tualatin truck-stop fleet yard in March 2026. The blocks were 9 inches tall, 11 inches wide, with 4 pins each (5/8 x 24 inches). Weight per block was 410 pounds; install required a fork-truck and 2-person crew.

Industry Baseline Range

Item	Industry Baseline Range
4-foot block (any material)	$25 to $80
6-foot rubber block	$55 to $130
6-foot concrete block	$30 to $80
6-foot plastic block	$45 to $95
8-foot industrial block	$90 to $220
10-foot trailer/semi block	$200 to $450

These figures reflect published industry averages. Current market pricing varies significantly and actual quotes may fall well outside these ranges based on site-specific conditions, material costs, and project complexity.

Current Market Reality

Recycled rubber prices rose 15 to 25 percent through 2025 due to tire-feedstock shortages. Concrete and asphalt-composite tracked aggregate cost moves (up 8 to 12 percent). Industrial-spec blocks (8 to 10 feet, double-pin) saw freight surcharges of $40 to $90 per unit on Oregon I-5 corridor deliveries.

Get the Right Dimensions for Your Stall

Standard wheel stops are 6 feet long, 6 inches tall, and 6 to 9 inches wide. Pick wider, taller, longer for SUV, fleet, or industrial use; pick shorter for compact-only stalls. Always verify clearance against ADA 502.7 and pin-hole spacing against your install method. Cojo specifies, supplies, and installs wheel stops across the Willamette Valley. Contact Cojo for a layout quote, or read our wheel stop guide for the full product overview.