Curbs | Kerbs

Curbs | Kerbs

Description
Description

Curbs are the circulation elements that make up the edge of where a raised sidewalk or a median meets a street or roadway. The main purpose of Curbs is to help delineate the edge of the pavement that separates the road from sidewalks and prevent drivers from possibly parking and driving on any sidewalks or lawns. Curbs also help promote structural support to the edge of a pavement and can help direct any runoff water from rain or melted snow into storm drains. Curbs are often categorized by shape, material, height, and whether the curb is combined with a gutter.

History
History

Curbs, those raised edges lining our streets, originally emerged as simple stone borders to manage runoff in ancient civilizations. As urban areas grew, so did the role of curbs. By the 18th and 19th centuries, they became key to separating pedestrians from traffic, establishing order in bustling cities. They also facilitated effective drainage, reducing flooding. Over time, materials shifted from stone to concrete, adapting to the changing needs of expanding urban infrastructure.

Future
Future

Curbs are evolving to suit modern cityscapes. With the rise of shared spaces, some areas are blending curbs into the road, using color and texture differences instead of height. Elsewhere, adaptive curbs change use based on time of day, reserving spaces for pedestrians, cyclists, or vehicles as needed. In greener cities, permeable curbs aid in rainwater absorption, mitigating urban flooding. Innovations like these ensure that curbs continue shaping safe and efficient urban environments.

Common Questions
Common Questions
What is a 'curb cut'?

A curb cut (also called a curb ramp, depressed curb, dropped curb, or pram ramp) is a ramped section of curb that allows pedestrians to cross the street at an intersection without having to climb over the curb. Curb cuts are designed primarily for wheelchair users, but they also benefit people with strollers, baby carriages, bicycles, and other wheeled devices.

What is the difference between a barrier curb and a mountable curb?

The main difference between a barrier curb and a mountable curb is that a barrier curb is vertical and cannot be driven over, while a mountable curb has a sloping face that allows vehicles to drive over it without damaging their tires.

How are curbs created?

Curbs are typically made of concrete or stone. They are created by pouring concrete into forms or by using a slipform machine. The type of curb that is used will depend on the specific project requirements. For example, hand-made curbs may be used for smaller projects, while slip form casting machines may be used for larger projects or projects that require a high level of precision.

Buildings

* Under Development *

4”, 6” | 10.2, 15.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6” | 15.2 cm
Curb - Angle
15.200
91.400
15.200
0
https://p3d.in/e/BCWTq
GUIDE
3D
Curb - Angle3D model of a Angle Curb viewed in perspective3D model of a Angle Curb viewed in perspective
4” | 10.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6” | 15.2 cm
Curb - Mower
10.200
91.400
15.200
350
https://p3d.in/e/Tv1jl
GUIDE
3D
Curb - MowerView of a Mower Curb in 3D available for downloadView of a Mower Curb in 3D available for download
6” | 15.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6”, 8” | 15.2, 20.3 cm
Curb - Parking
15.200
91.400
20.300
1700
https://p3d.in/e/BP9T8
GUIDE
3D
Curb - ParkingPerspective view of a 3D model of a Parking CurbPerspective view of a 3D model of a Parking Curb
3.25”, 4” | 8.3, 10.2 cm
4’, 6’, 8’ | 1.22, 1.83, 2.44 m
6”, 8” | 15.2, 20.3 cm
Curb - Parking Block
10.200
244.000
20.300
4600
https://p3d.in/e/ujAaM
GUIDE
3D
Curb - Parking Block3D model of a Parking Block viewed in perspective3D model of a Parking Block viewed in perspective
9”, 12”, 18” | 22.9, 30.5, 45.7 cm
8’ | 2.44 m
12”, 16”, 18” | 30.5, 40.6, 45.7 cm
Curb - Parking Block, Jumbo
45.700
244.000
45.700
4600
https://p3d.in/e/jUQ4L
GUIDE
3D
Curb - Parking Block, JumboView of a Jumbo Parking Block in 3D available for downloadView of a Jumbo Parking Block in 3D available for download
4”, 6” | 10.2, 15.2 cm
9”8”-14’ | 2.95-4.27 m (Overall)
48”, 72” | 121.9, 182.9 cm
Curb - Ramp, Built-Up
15.200
427.000
182.900
50
https://p3d.in/e/xTVjd
GUIDE
3D
Curb - Ramp, Built-UpView of a Built-Up Curb Ramp in 3D available for downloadView of a Built-Up Curb Ramp in 3D available for download
4”, 6” | 10.2, 15.2 cm
9”8”-14’ | 2.95-4.27 m (Overall)
48”, 72” | 121.9, 182.9 cm
Curb - Ramp, Flared
15.200
427.000
182.900
10
https://p3d.in/e/5oeHX
GUIDE
3D
Curb - Ramp, FlaredPerspective view of a 3D model of a Flared Curb RampPerspective view of a 3D model of a Flared Curb Ramp
4”, 6” | 10.2, 15.2 cm
12’-15’ | 3.66,-4.57 m
48”, 60” | 121.9, 152.4 cm
Curb - Ramp, Parallel
15.200
457.000
152.400
90
https://p3d.in/e/WZfYv
GUIDE
3D
Curb - Ramp, Parallel3D model of a Parallel Curb Ramp viewed in perspective3D model of a Parallel Curb Ramp viewed in perspective
4”, 6” | 10.2, 15.2 cm
36”, 48” | 91.4, 121.9 cm
48”, 72” | 121.9, 182.9 cm
Curb - Ramp, Returned
15.200
121.900
182.900
0
https://p3d.in/e/Y4xw3
GUIDE
3D
Curb - Ramp, ReturnedView of a Returned Curb Ramp in 3D available for downloadView of a Returned Curb Ramp in 3D available for download
4”, 6” | 10.2, 15.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6” | 15.2 cm
Curb - Round
15.200
91.400
15.200
50
https://p3d.in/e/SBWNf
GUIDE
3D
Curb - Round3D model of a Round Curb viewed in perspective3D model of a Round Curb viewed in perspective
6” | 15.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6” | 15.2 cm
Curb - Slant
15.200
91.400
15.200
5
https://p3d.in/e/HeigV
GUIDE
3D
Curb - Slant3D model of a Slant Curb viewed in perspective3D model of a Slant Curb viewed in perspective
4”-12” | 10.2-30.5 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
6”, 8” | 15.2, 20.3 cm
Curb - Square
30.500
91.400
20.300
10
https://p3d.in/e/ZwCFI
GUIDE
3D
Curb - SquareView of a Square Curb in 3D available for downloadView of a Square Curb in 3D available for download
2”, 4” | 5.1, 10.2 cm
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
12”, 18”, 24” | 30.5, 45.7, 61 cm
Curb - Walkway
10.200
91.400
61.000
5
https://p3d.in/e/riOQ1
GUIDE
3D
Curb - WalkwayPerspective view of a 3D model of a Walkway CurbPerspective view of a 3D model of a Walkway Curb
Curb - Ramp, Returned
Scale illustration of the Returned Curb Ramp compared to other curb configurations

A returned curb ramp is a type of ramp that does not have flared edges. Instead, it has straight edges that are parallel to the ground. This type of ramp is often used where pedestrians would not normally walk across the ramp, such as at the edge of a parking lot or in a landscaped area. Returned curb ramps can be made from a variety of materials, including concrete, asphalt, and brick. They are typically painted or striped to make them more visible to pedestrians.

Returned Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 36”, 48” (91.4, 121.9 cm), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run.

Pair of dimensioned illustrations of the Returned Curb Ramp seen in elevation and plan
A returned curb ramp is a type of ramp that does not have flared edges. Instead, it has straight edges that are parallel to the ground. This type of ramp is often used where pedestrians would not normally walk across the ramp, such as at the edge of a parking lot or in a landscaped area.

Returned Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 36”, 48” (91.4, 121.9 cm), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run.

Pair of dimensioned illustrations of the Returned Curb Ramp seen in elevation and plan
Curb - Ramp, Returned
Height:
4”, 6” | 10.2, 15.2 cm
Width:
36”, 48” | 91.4, 121.9 cm
Length:
Depth:
48”, 72” | 121.9, 182.9 cm
Weight:
Area:

Landing: 36”-48” | 91.4-121.9 cm

Slope (Run): 1:12 Max

Materials
Concrete

Drawings include:

Returned Curb Ramp plan view, front, side

Downloads

2D Downloads

3D Downloads

Curb - Slant
Comparison drawing of the Slant Curb compared to other curb configurations

A slant curb, also known as a wheel block curb, is a type of curb that is angled towards the street. This type of curb is often used to prevent cars from parking too close to the intersection or driveway. Slant curbs can also be used to create a more pedestrian-friendly environment by providing a physical barrier between the sidewalk and the street.

Slant Curbs are available in varied shapes with a height of 6” (15.2 cm) and depth of 6” (15.2 cm). Curb blocks typically come in lengths of 18”, 24”, 36” (45.7, 61, 91.4 cm).

Pair of dimensioned illustrations of the Slant Curb seen in elevation
A slant curb, also known as a wheel block curb, is a type of curb that is angled towards the street. This type of curb is often used to prevent cars from parking too close to the intersection or driveway. Slant curbs can also be used to create a more pedestrian-friendly environment.

Slant Curbs are available in varied shapes with a height of 6” (15.2 cm) and depth of 6” (15.2 cm). Curb blocks typically come in lengths of 18”, 24”, 36” (45.7, 61, 91.4 cm).

Pair of dimensioned illustrations of the Slant Curb seen in elevation
Curb - Slant
Height:
6” | 15.2 cm
Width:
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
Length:
Depth:
6” | 15.2 cm
Weight:
Area:
Materials
Concrete, asphalt, stone, or masonry

Drawings include:

Slant Curb side view (various)

Downloads

2D Downloads

3D Downloads

Curb - Ramp, Built-Up
Scale illustration of the Built-Up Curb Ramp compared to other curb configurations

A built-up curb ramp is a type of ramp that is built outward from the front of the curb edge, rather than cut into the curb. This type of ramp is typically used in areas where it is not possible to cut into the curb, such as in areas with heavy traffic or where the curb is made of a material that is difficult to cut. Built-up curb ramps are typically made of concrete or asphalt, and they must meet the same accessibility standards as other types of ramps.

Built-Up Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 9”8”-14’ (2.95-4.27 m), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run and 1:10 for the flared sides.

Pair of dimensioned illustrations of the Built-Up Curb Ramp seen in elevation and plan
A built-up curb ramp is a type of ramp that is built outward from the front of the curb edge, rather than cut into the curb. This type of ramp is typically used in areas where it is not possible to cut into the curb, such as in areas with heavy traffic.

Built-Up Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 9”8”-14’ (2.95-4.27 m), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run and 1:10 for the flared sides.

Pair of dimensioned illustrations of the Built-Up Curb Ramp seen in elevation and plan
Curb - Ramp, Built-Up
Height:
4”, 6” | 10.2, 15.2 cm
Width:
9”8”-14’ | 2.95-4.27 m (Overall)
Length:
Depth:
48”, 72” | 121.9, 182.9 cm
Weight:
Area:

Width (Minimum): 36” | 91.4 cm

Width (Preferred): 48” | 121.9 cm

Landing: 36”-48” | 91.4-121.9 cm

Slope (Run): 1:12 Max

Slope (Flare): 1:10 Max

Materials
Concrete

Drawings include:

Built-Up Curb Ramp plan view, front, side

Downloads

2D Downloads

3D Downloads

Curb - Round
Comparison drawing of the Round Curb compared to other curb configurations

A round curb is a curved barrier that is typically made of concrete or stone. It is used to separate areas of a sidewalk or road, such as the pedestrian walkway from the street. Round curbs are often used in parks, playgrounds, and other areas where there is a lot of foot traffic. They can also be found in front of businesses and homes to help keep cars from parking on the sidewalk. They can be either smooth or have a textured surface.

Round Curbs are available in varied shapes with heights of 4”, 6” (10.2, 15.2 cm) and a depth of 6” (15.2 cm). Curb blocks typically come in lengths of 18”, 24”, 36” (45.7, 61, 91.4 cm).

Scaled set of measured drawings of the Round Curb in side views
A round curb is a curved barrier that is typically made of concrete or stone. It is used to separate areas of a sidewalk or road, such as the pedestrian walkway from the street. Round curbs are often used in parks, playgrounds, and other areas where there is a lot of foot traffic.

Round Curbs are available in varied shapes with heights of 4”, 6” (10.2, 15.2 cm) and a depth of 6” (15.2 cm). Curb blocks typically come in lengths of 18”, 24”, 36” (45.7, 61, 91.4 cm).

Scaled set of measured drawings of the Round Curb in side views
Curb - Round
Height:
4”, 6” | 10.2, 15.2 cm
Width:
18”, 24”, 36” | 45.7, 61, 91.4 cm (Varies)
Length:
Depth:
6” | 15.2 cm
Weight:
Area:
Materials
Concrete, asphalt, stone, or masonry

Drawings include:

Round Curb side view (various)

Downloads

2D Downloads

3D Downloads

Curb - Ramp, Flared
Style and size comparison drawing of the Flared Curb Ramp compared to other curb configurations

A flared curb ramp is a type of ramp that is used to provide access to the street for pedestrians and people with disabilities. It is characterized by its flared sides, which extend out from the curb and provide a wider landing area. This makes it easier for people to get on and off the ramp, and also helps to prevent them from tripping or falling. Flared curb ramps are typically made of concrete or asphalt, and they are often painted a bright color to make them more visible.

Flared Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 9”8”-14’ (2.95-4.27 m), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run and 1:10 for the flared sides.

Set of scaled dimensioned drawings of the Flared Curb Ramp viewed from the front, plan, and side
A flared curb ramp is a type of ramp that is used to provide access to the street for pedestrians and people with disabilities. It is characterized by its flared sides, which extend out from the curb and provide a wider landing area. This makes it easier for people to get on and off the ramp.

Flared Curb Ramps are designed in various sizes with heights of 4”, 6” (10.2, 15.2 cm), overall widths of 9”8”-14’ (2.95-4.27 m), and overall depths of 48”, 72” (121.9, 182.9 cm). Curb ramps have a minimum width of 36” (91.4 cm) and landings of 36”-48” (91.4-121.9 cm
). Slopes are a maximum of 1:12 for the run and 1:10 for the flared sides.

Set of scaled dimensioned drawings of the Flared Curb Ramp viewed from the front, plan, and side
Curb - Ramp, Flared
Height:
4”, 6” | 10.2, 15.2 cm
Width:
9”8”-14’ | 2.95-4.27 m (Overall)
Length:
Depth:
48”, 72” | 121.9, 182.9 cm
Weight:
Area:

Width (Minimum): 36” | 91.4 cm

Width (Preferred): 48” | 121.9 cm

Landing: 36”-48” | 91.4-121.9 cm

Slope (Run): 1:12 Max

Slope (Flare): 1:10 Max

Materials
Concrete

Drawings include:

Flared Curb Ramp plan view, front, side

Downloads

2D Downloads

3D Downloads