There are many regulations and calculations that go into designing an ada ramp but the ramp landing size is commonly miscalculated because the door size door swing and ramp approach are often not considered.
Ada front approach door clearance.
Advisory 404 2 4 3 recessed doors and gates.
The ada home page provides access to americans with disabilities act ada regulations for businesses and state and local governments technical assistance materials ada standards for accessible design links to federal agencies with ada responsibilities and information updates on new ada requirements streaming video information about department of justice ada settlement agreements.
Doors in alcoves use front approach per cbc sliding folding doors gates openings 36 wide with front approach use push side clearance openings without doors 36 wide with side approach use front approach push side with 42 min clr depth.
Clearances are required at accessible elements fixtures and controls so that people with disabilities including those who use wheelchairs can approach and use them.
The front partition and at least one side partition shall provide a toe clearance of 9 inches 230 mm minimum above the finish floor and 6 inches 150 mm deep minimum beyond the compartment side face of the partition exclusive of partition support members.
This guide explains requirements in the ada standards for clear floor or ground space and turning space.
4 2 6 side reach if the clear floor space allows parallel approach by a person in a wheelchair the maximum high side reach allowed shall be 54 in 1370 mm and the low side reach shall be no less than 9 in 230 mm above the floor.
Front approaches to pull side of swinging doors shall have maneuvering space that extends from the hinge side of the door to 18 inches 455 mm minimum 24 inches 610 mm preferred beyond the latch side of the door and 60 inches 1525 mm minimum perpendicular to the doorway.
If the high forward reach is over an obstruction reach and clearances shall be as shown in here under.
Maneuvering clearances are specified according to direction of approach swing of doors and in some cases the presence of a closer or latch.
Maneuvering clearances for forward approach shall be provided when any obstruction within 18 inches 455 mm of the latch side of a doorway projects more than 8 inches 205 mm beyond the face of the door measured perpendicular to the face of the door or gate.
They are required on both sides of doors or gates except at those that can be used in one direction only.
Advisory 404 2 4 3 recessed doors and gates.
Clearance beyond the latch side is not required at entry doors to hospital patient rooms.