Landscape & Site
Site planning dimensions: parking, walkways, planting, and exterior circulation.
Standard Parking Space
Typical dimensions for a standard 90° automobile parking space.
Driveway Width
Clear width for single-lane and double-lane residential driveways.
Sidewalk / Walkway Width
Clear width for public sidewalks and site walkways.
Site Accessible Route Slope
Maximum running slope for an accessible pedestrian route that is not classified as a ramp.
Tree Planting Setback from Foundation
Recommended minimum distance between a tree trunk and a building foundation, based on mature canopy size.
Exterior Stair Riser & Tread
Typical riser height and tread depth for exterior site stairs, generally shallower than interior stairs.
Residential Fence Height
Typical maximum fence heights permitted in residential front and rear/side yards.
Planting Bed Depth
Minimum soil depth and bed width to support healthy shrub and perennial planting.
Exterior Door Landing Depth
Minimum depth of a level landing at an exterior door, before steps or a ramp begin.
Accessible Door Threshold Height
Maximum height of a door threshold or sill on an accessible route, including exterior sliding doors.