height requirements the international residential code requires balcony railings to be 36 inches high for homes. for business or fencing use, the railings should be 42 or 48 inches.
railings for residential decks require a height of 3 feet from the floor of the deck to the rail top surface, as mandated by the irc. commercial railings necessitate a higher railing at 42 inches, as regulated by the ibc.
height of guard rails. the top edge of the guard rails must be between 39 and 45 inches above the walking area, taking account of all circumstances. for example, if employees are using elevated footwear for some reason, the top of the rails will need to be correspondingly higher.
in other words, a deck less than one metre 1m above ground is not required to have a handrail, though depending on the height it may still be recommended. decks four metres 4m from the ground or higher need to meet additional design requirements.
the top edge height may exceed 45 inches 114 cm , provided the guardrail system meets all other criteria. this may be the quintessential osha requirement for work platforms. any work area four feet or more above the next level lower must have guardrails. period. the guardrails must be on every open side of the platform, excluding openings.
1 existing guardrailing shall consist of a top rail, intermediate rail, and posts, or equivalent, and shall have a minimum vertical height of 36 inches to 44 inches from the upper surface of the top rail to the floor, platform, runway or ramp level. emphasis added.
if they are provided, they are not required to comply with requirements in the ada standards for handrails §403.6, advisory . can a more recent edition of the asme a17.1 safety code for elevators and escalators or the asme a18.1 safety standard for platform lifts and stairway chairlifts be used instead of the editions referenced in the
commentary: handrails are required on all stairs more than four risers in height. handrails cannot be less than 30 inches nor more than 42 inches above the nosing of the treads see figure pm-702.9 . guards are required on the open side of stairs and on landings and balconies which are more than 30 inches above the floor or grade below.
riser heights in all uses may range from a minimum of 6.5 inches to 10.5 inches. the riser requirements for the osha, ibc and ibc-related los angeles building department regulations have minimums and maximums that conflict with the requirements in the other two.
so this basically sums up the basic code requirements for residential stairs and their dimensions. therefore let us recap on the residential stair code requirements: minimum 36 inch clear width for stairway. maximum 4-1/2 inch handrail projection into stairway width, on either side. minimum 6-8 headroom height clearance for stairway.
handrails are very important in preventing a loss of balance on stairs becoming a serious fall. but they need to be in the right place, at the right height and graspable: the top of the handrail should be positioned between 900mm and 1000mm above the pitch line or floor. handrails should give firm support and allow a firm grip.
6 the height of handrails shall be not more than 37 inches 94 cm nor less than 30 inches 76 cm from the upper surface of the handrail to the surface of the tread, in line with the face of the riser at the forward edge of the tread.
in general industry, osha standards say the guardrail height railing must be 42 high. simple but in the construction industry osha states the proper response is 42 plus or minus 3. in the construction industry, your rail is compliant if the top railing falls between 39 from the walking surface and 45 from the walking surface.
handrail height is the height of the handrail in relation to the stairs. handrail height on the stairs should be no less than 34 inches and no greater than 38 inches. the way this is measured is to begin at the leading edge of the stair nosing and run an imaginary vertical line upward until it reaches the top of the railing.
every open-sided floor or platform 4 feet or more above adjacent floor or ground level shall be guarded by a standard railing or the equivalent as specified in paragraph e 3 of this section on all open sides except where there is entrance to a ramp, stairway, or fixed ladder.
a maximum height of 28 inches 710 mm measured to the top of the gripping surface from the ramp surface or stair nosing is recommended for handrails designed for children. sufficient vertical clearance between upper and lower handrails, 9 inches 230 mm minimum, should be provided to help prevent entrapment.
load requirement: withstand a 200 pound load applied in a downward or outward direction within 2 inches of the top edge of the top rail. handrail and handrail systems the minimum clearance between handrails and other objects is 2.25 inches. handrails have the shape and dimension necessary to grasp firmly.
application.this section covers all stairways including standard, spiral, ship, and alternating tread-type stairs , except for articulated stairs stairs that change pitch due to change in height at the point of attachment such as those serving floating roof tanks, stairs on scaffolds, stairs designed into machines or equipment, and stairs on self-propelled motorized equipment.
the maximum riser height shall be 73/4 inches 196 mm . the riser shall be measured vertically between leading edges of the adjacent treads. the greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch 9.5 mm . r tread depth.
adult height requirements: top of gripping surfaces of handrails shall be 34 inches 865 mm minimum and 38 inches 965 mm maximum vertically above walking surfaces, stair nosings, and ramp surfaces. handrails shall be at a consistent height above walking surfaces, stair nosings, and ramp surfaces.