Beep Beep
Handling Change
People
Circles and Wheels
Big Trucks
100

Typical dimensions of a parking stall.

What is 9' x 18'?

100

The maximum slope for an accessible parking stall, as well as cross slope on an exterior walkway and landing.

What is 2%?

100

Minimum clear width of a walkway and ramp run.

What is 36"? (Handrails and handrail supports provided on ramp run shall not project into required clear width.)

100

Typical bike stall dimension.

What is 2'x6'?

100

Typical vertical drop at a dock.

What is 4'?

200

Needed adjacent to an accessible parking stall and can vary in width from 5' to 8'.

What is an access aisle?

200

Maximum rise for ramp run before needing a landing mid-run.

What is 30"? (Landings required at top and bottom, and every 30" of vertical change)

200

Ideal maximum slope of patio before seated person can detect slope.

What is 1-2%?

200

Preferred style of bike rack to allow 2 points of locking of frame and wheel to the rack.

What is a 'U' bike rack?

200

Typical length of a semi with 53' trailer?

What is 73.5' to 75'?
300

Formed by the intersection of two lines drawn along each property or curb line a specified distance away from a street intersection.

What is a vision triangle?

300

Year of ICC A117.1 accessible code that will go into effect when Wisconsin adopts the 2021 IBC.

2017

300

The maximum vertical drop from walkway before a guardrail is needed.

What is 30"? (Measured vertically to the floor or grade below at any point within 36" horizontally to the edge of the open side).

300

Ball sphere diameter that should not be allowed to pass through guard rail openings.

What is 4"?
300

Considered the minimum distance from 90-degree docks to edge of pavement for maneuvering.

What is 120'? (desired would be in 140-150' range with 40' to 50' radii).

400

Typical maximum running slope across a parking lot.

What is 5%? 

400

Minimum length of handrail extensions at top and bottom of stairs and landings.

What is 12"?
400

This play surfacing is considered accessible if properly maintained by raking into place.

What is engineered wood fiber?

400
The minimum inside turning radius for a fire lane.

What is 28'?

400

Standard bumper thickness that should be considered in dock planning to prevent top of truck from hitting building / door.

What is 4"? (increase this bumper thickness with steeper slope, see calculations in reference library)
500

Number of van accessible parking stalls needed within a 100-stall parking lot.

What is 1? (For every 6 or fration of 6 parking accessible parking stalls required, at least 1 shall be van accessible)

500
Minimum ramp rise needing a handrail.

What is 6"?

500

Required at the pedestrian access routes and transit stops, most commonly seen at bottom of curb ramp.

What is detectable warning surface?

500

This watertight receptacle is built to catch sediment of surface, subsoil or other waste drainage and to retain oily or greasy wastes, so as to prevent their entrance into the building drain or building sewer.

What is a catch basin?

500

Typical vertical clearance at dock.

What is 13.5'?

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