Door Landing Size

Code expert Glenn Mathewson runs through the landing requirements for exterior doors, including the threshold dimensions and much more. Thresholds at doorways shall not exceed 3 / 4 inch (19.1 mm) in height above the finished floor or landing for sliding doors serving dwelling units or 1 / 2 inch (12.7 mm) above the finished floor or landing for other doors. Doors other than the required egress door shall be provided with landings or floors not more than 7 3 / 4 inches (196 mm) below the top of the threshold.

Exception: A top landing is not required where a stairway of not more than two risers is located on the exterior side of the door, provided that the door does not swing over the stairway. In summary, landing requirements for exterior doors include threshold dimensions, allowable steps, and dimensions. Landings must be at least as wide as the door served and have a dimension of 36 inches in the direction of the door served.

Exterior door landing sizes under the International Residential Code Glenn Mathewson 5.82K subscribers Subscribe. The step-down requirements to a landing at an exterior door of a home depends on whether the door is an egress door or just a regular exterior door. The egress door standards are more stringent, per the International Residential Code (IRC R311.1) and Residential Edition of the Florida Building Code (FBC).

R311.3.1 Floor elevations at the required egress doors. Landings or finished floors at the required egress door shall not be more than 1-1/2 inches (38 mm) lower than the top of the threshold. Exception: The landing or floor on the exterior side shall not be more than 7-3/4 inches (196 mm) below the top of the threshold provided the door does not swing over the landing or floor.

Where exterior. The floor or landing at exterior doors other than the exit door required by rule 4781-6-03.9 of the Administrative Code shall not be required to comply with this requirement, but shall have a rise no greater than that permitted by this rule. (I googled for the minimum landing size to get a CO and pulled up a lot of information on getting a pilots license.) Blocks to support the landing A small landing doesn't need a poured foundation or piers.

It can just be set on level pre-cast footings like these. The back door landing The landing will be super stable. The pressure treated wood 4×4 posts extend to support the railing.

Back. Doors, Doorways and Gates [§206.5] Compliance is required for doors, doorways, and gates providing user passage on accessible routes. At least one accessible door, doorway, or gate serving each accessible room, space, and entrance must comply.

Manual Doors and Gates [§404.2 Clear Width [§404.2.3].

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