Pennsylvania Code
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COMMONWEALTH OF PENNSYLVANIA

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The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 54 Pa.B. 5598 (August 31, 2024).

34 Pa. Code § 51.11. Story height.

CONSTRUCTION TYPE—MAXIMUM STORY HEIGHT


§ 51.11. Story height.

 (a)  A-1 occupancies shall be governed by the story height limitations in the following table:

Construction TypeMaximum Story Height
FireresistiveNo Limit
Noncombustible1 Story
Protected Heavy Timber1 Story
Ordinary*Not Permitted
Wood Frame*Not Permitted

 (b)  *A single story shall be permitted in ordinary or wood frame construction when the building is 1-hour rated construction or totally protected by an automatic sprinkler system.

 (c)  An additional story shall be permitted in noncombustible and protected heavy timber construction when the building is 1-hour rated construction or totally protected by an automatic sprinkler system. The maximum story height may be increased by two stories.

 (d)  Noncombustible, protected heavy timber, ordinary and wood frame construction types shall be considered 1-hour rated construction when bearing walls, columns, beams, other supporting members, ceiling/roof assemblies, floor/ceiling assemblies, stairways, and other openings through floors are of 1-hour rated construction.

 (e)  Basement areas shall be 1-hour rated construction up to and including the floor/ceiling assembly between the basement and the first floor.


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