Community Search
A14.1 Wood Ladders

ANSI-ASC 14.1-2018 revision of ANSI-ASC 14.1-2007


This standard prescribes rules and establishes minimum requirements for the construction, testing, care, and use of the common types of portable wood ladders described herein in order to ensure safety under normal conditions of usage. Ladder Types included are:

Working Load:
Duty Rating Ladder Type (Pounds)
Extra Heavy-Duty IA 300
Heavy- Duty I 250
Medium-Duty II 225
Light-Duty III 200

It does not cover step stools (furniture type), except ladder type step stools (see 6.4.4 for other exceptions). It also does not cover ladder accessories, including, but not limited to, ladder shoes, ladder levelers, ladder stabilizers or standoff devices, ladder jacks, or ladder straps and hooks, that may be installed on or used in conjunction with ladders.

Note: While ladder type stools are covered by A14.1, it is recognized that a step stool standard is under development. When the step stool standard is approved, A14.1 will no longer cover ladder type step stools. The new standard will be A14.11. These requirements are also intended to prescribe rules and criteria for labeling/marking of the kinds of portable ladders cited in this standard, but exclusive of furniture type step stools and special purpose ladders. These labeling/marking requirements do not apply to those situations where training, supervision, or documented safety procedures would be in conflict, or serve in lieu of, these labeling/marking requirements.



The purpose of this standard is to provide reasonable safety for life, limb, and property. In order to develop an effective safety program, the standard may serve also as a basis for purchase requirements and for instructions in personnel training. It may also assist in the preparation of motivational/instructional material such as safety practices, manuals, posters, and the like. This standard is also intended to provide the manufacturer, purchaser, and user of wood ladders with a set of specifications and requirements against which a ladder may be compared.

It is not the purpose of this standard to specify all the details of construction of portable wood ladders. The limitations imposed are for the purpose of providing adequate general requirements and testing methods needed for consistency.



For printed or licensing, please visit one of ALI's partner distributors. 

Earlier standard editions are available by contacting the American Ladder Institute a (312) 321-6806 

Membership Software Powered by ® :: Legal

Contact Us: Pam O'Brien

Phone: (312) 321-6806
Fax: (312) 673-6929

Association Management Software  ::  Legal