Most deck stairs are straight ﬂights of rectangular treads which must measure between 255mm and 355mm 10-14 in depth with a nosing no more than an additional 1. The top edge of the handrail must be placed between 34.
Refer to Division B 9883.
Alberta building code deck stair railing. A guardrail is typically required for stairs with 4-or-more risers or for a deck or balcony with 30 inches above grade. Deck railing code alberta. The rise of the stairs should be between 125 mm 5 and 200 mm 8.
Some areas require taller guardrail. Building Code Deck Railing Post Spacing Requirements According to the International Building Code deck railing posts should be spaced no further than 6 feet apart. In force from May 1 2015 to November 30 2019 PDF 17 MB.
Maximum nosing of 075 to 125 – maximum nosing radius of 916 Open risers. Minimum 6-8 headroom height clearance for stairway. Treads must be at least 10 inches deep measuring from front to back.
Maximum 36 oc solid stringer spacing for 2 thick treads. Rail heights on guards horizontal railings not sloping need to be 3-6 high but there are times when 2-11 is OK. Maximum 18 oc notched stringer spacing for 2 or 54 thick treads.
Minimum 36 inch clear width for stairway. Minimum Height of 1070mm 42-inch in commercial applications and 900mm 36-inch in residential applications. The expectation is that the user does not have to release the handrail to continue to the next flight of stairs.
Maximum 4-12 inch handrail projection into stairway width on either side. Alberta Building Code Interior Stair Railing Height. Stairs 2200mm 87 inches require an intermediate handrail such that a user is no more than 825mm 32 inches from a handrail.
Maximum 12-7 vertical height rise for a flight of stairs. Sometimes local building codes will have more stringent regulations so check your local building department for post spacing requirements. The sweep space between the deck surface and the bottom rail must be less than 4.
Of the 2014 Alberta Building Code for more information. Stair Run means the horizontal distance between two adjacent tread nosings on a stair. Decks can be supported by concrete piles screw piles or concrete pads.
Guardrails must be installed to reach a height of. Railing height alberta building code. According to the International Building Code deck railing posts should be spaced no further than 6 feet apart.
Stair rails on decks should be between 34 inches and 38 inches high measured vertically from the nose of the tread to the top of the rail. Code requires guardrail in residential structures be a minimum of 36 inches. Codes in force.
What is the reasoning behind this spacing. For further information please contact 780-464-8080. Stair treads must sustain a weight of at least 300 pounds in an area no more than four inches square.
Handrails are required for stairs in many applications and must meet standards as specified by R311563 in the IRC code. Spacing requirements between railing balusters The maximum rail opening is 0-4 wide. Guards are required when then deck is 24 60 cm above grade.
National Building Code 2019 Alberta Edition PDF 23 MB National Energy Code of Canada for Buildings 2017 PDF 45 MB Historical code timeline Alberta Building Code ABC ABC 2014. Illustrations Handrail required throughout the total length of the stair from bottom riser to top riser including the winders. Otherwise if the guardrail is composed of railings or balusters these must be spaced at intervals of no more than 4 inches.
Height of the top of the stairs is 600 mm 24 high or higher. Canada REsidential Rail Height and Dimensions. Guardrail refers to the structural railing element that sits atop a railing system.
Concrete pads must have the minimum dimension of 2 by 2 with a thickness of 4. If handrails andor guardrails are required by the Alberta Building Code doors opening onto a residential wood deck must be mechanically secured to prevent access until handrails and guards are installed. DECK BUILDING CODE TIPS.
The following codes in the building discipline are currently in force. Onto the construction of any exterior stairs landings and decks must be mechanically secured against opening until handrails and guards are installed as required by the current edition of thenosing to nosing Alberta Building Code. A railing 090m 3-0 high is required if the distance from the surface of your deck to adjacent ground level is less than 18m 6-0.
Handrails must be continuously graspable. Alberta Legislation Regarding Guardrails Handrail Installation A crucial component in workplace safety is proper guardrailhandrail installation to prevent worker injury. If the deck is 6 or higher above grade the foundation will require the seal and signature of a Professional Engineer of Alberta.