R311.7.11.2 Handrails of alternating tread devices
Handrails shall be provided on both sides of alternating tread [...]
Handrails shall be provided on both sides of alternating tread [...]
Alternating tread devices shall have a tread depth of not [...]
Alternating tread devices shall not be used as an element [...]
Handrails shall be provided on both sides of alternating tread [...]
Alternating tread devices shall have a tread depth of not [...]
Alternating tread devices shall not be used as an element [...]
Handrails shall be provided on both sides of alternating tread [...]
Alternating tread devices shall have a tread depth of not [...]
Alternating tread devices shall not be used as an element [...]