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Deck Railing Code Height Ontario

Deck Railing Code Height Ontario
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Deck Railing Height: Requirements and Codes for Ontario

The aesthetic appeal of a deck railing is important. But if there is anything that is more important than that, it’s the railing’s safety. Hence, if you are going to have a deck railing installed in your Ontario property, you should make sure that your railing meets the height requirement and other regulations.

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Height Requirements for Deck Railing

Platforms that have an elevation of 30” and more require a deck guardrail. The height requirement for guardrail for a typical single-family detached home is at least 36”. This includes the space between the platform itself and the top rail. Meanwhile, commercial decks have slightly stricter requirements. The guardrail height for a commercial deck has to be at least 42”.  A guardrail can have pretty much any design as long as the decorative elements are not spaced more than 4” apart.

Deck Railing Code Ontario

We at Art Metal strictly follow the Ontario deck railing code. Ontario codes have the same basic requirements, but with some minor changes. The height code and other requirements for deck railing in Ontario are based on building experience and the area’s climate.

One specific requirement is that the space between the surface and the bottom rail should not be more than 4”. Additionally, the stair railing height should measure at least 34” from the nosing to the top rail. A load of 50lb per square feet is allowed for every baluster. Meanwhile, a 200lb concentrated load is permitted in the construction.

Consult with us at Art Metal to ensure that your deck railing meets the height requirements and building codes.

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Deck Railing Code Ontario

Enhance your space with our top-notch deck railings at Art Metal, offering safety and style for both residential homes and commercial spaces. Our custom-crafted railings are designed for lasting elegance and robust functionality, perfect for any deck or balcony.

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Residential Deck Railings

Elevate your home retreat with Art Metal’s residential deck railings. Crafted to capture the essence of sophisticated living, our railings combine safety and elegance, transforming your deck into a haven for family gatherings or tranquil solitude. Personalize your outdoor space with our wide range of designs, from modern minimalist to classic wrought iron, securing your view in impeccable style.

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Commercial Deck Railings

Art Metal’s commercial deck railings are the cornerstone of corporate elegance and durability. Designed to withstand the demands of any business environment, our railings blend seamlessly into your commercial landscape, offering ultimate safety and a polished look. Whether it’s a restaurant terrace or a corporate balcony, our bespoke solutions are tailored to enhance your professional façade and impress at first glance.

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How Deck Railing Height Is Regulated in Ontario


The main purpose of railing installation is safety, which is ensured only if the guideline for deck railing height and other regulations are met. These rules are determined by the code, which can be national, state, or county-wide.

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Deck Railing Height Requirements

A deck guardrail is required for any platform elevated to the height of 30” and more. The railing height for common single-family detached homes is controlled by the International Residential Code (IRC). It requires at least a 36” height guardrail, counting the space between the top rail and the platform itself.

Commercial decks that work for multi-family houses are controlled by International Building Code (IBC). The requirements are slightly stricter here, as the deck railing height code demands at least a 42” height guardrail for any deck.

According to any code, there are no restrictions regarding designs, unless the spaces between the decorative elements go over 4”. Guardrails for stairs can have a maximum of 6” space between its elements.

Deck Railing Code Ontario

The basics of the codes are similar, with minor changes from area to area. The Ontario deck railing code is controlled by the Ministry of Municipal Affairs and Housing (Building and Development Branch), and we at Art Metal Workshop strictly follow it. The code includes regulations regarding the height, spacing, load, etc.

To be more specific, some of the regulations are:

  • Deck railing height should be a minimum of 36” for any platform elevated to 30” and more from the surface.
  • The maximum space between the bottom rail and the surface is 4”.
  • The same gap is allowed between the decorative elements of the deck railing.
  • Minimum stair railing height has to be 34” from the top rail to the nosing.
  • A concentrated load of 200lb is allowed on the construction.
  • A 50lb load is allowed per square feet for every baluster.

The Ontario height code, as well as other requirements, are based on the special features of the area’s climate, as well as the building experiences.

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Deck Railing Post Spacing Calculator

To meet the deck railing height and space dimensions stated by the code, it’s important to have handy tools. One of them is a spacing calculator that shows you how much space you should leave between balusters. It’s very easy to use and can be found online in different modifications.

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Deck Railings Code Height

Residential decks are a good investment because of two things: first, they add value to your home; and second, they extend the overall space of your house.

According to the Remodeling website, which compared expenses and returns of renovations, the deck is one of the few areas in the house that will actually boost the value of your home when it’s time to resell.  But the type of material used may dictate just how much of your investment can you recoup.

For instance, a wooden deck seems to command the highest value as homeowners typically get as much as 80 cents to the dollar that they put into the new renovation.

The cost of building a deck for your home will vary depending on the materials used, the design, and the size of the new construction. On average, a basic deck will cost about $15 per square foot but this figure will shoot up to $35 per square foot for an elaborate and sophisticated deck. This will cost you about $11,000 for a decorative deck but that’s totally on the high end. You can build a basic deck for between $3,500 and $4,000 and immediately increase the property value of your home while, at the same time, also adding curb appeal.

Will a Residential Deck Increase My Property Taxes?

Good question. All over the world, property taxes are always based on the value of the house. So here’s what happens: A residential deck will increase the value of your home at the time of the assessment, which means that your property taxes will also go up.

The question now is how much? Again, it will depend on the size of the deck, the design, and the location that you are in. The assessor will not evaluate the deck as a separate construction but rather a distinct component of your home. You are likely going to pay less compared to a complete home addition like a basement or another room.

In some cases, you are not going to pay the taxes right away. While in others, you will be slapped with the new charge the next time you complete the form for your property levies. In some locations, the new rates will take effect after you filled up your business permit. Meanwhile, some cities have a strict schedule to follow so you may not feel the burden in two or three years.

What are the Legislations that Cover Residential Decks?

The Ontario Building Code is the bible for any residential or commercial construction in Ontario. However, cities also have their own local laws and ordinances that will cover the addition of a new residential deck.

Their functions are separate:

  1. The building code will cover safety, structural integrity, public health, and construction
  2. Local zoning laws will provide additional guidelines in the development, as well as ensure that the rights of the residents are protected

Both follow the National Building Code of Canada, and are prohibited from going beyond the basic parameters set in the law.

Why Do I Need a Building Permit?

The Building Code Act lays down the legal foundation of any residential or commercial development. This includes a raised deck, an attached deck, or a deck adjacent to the original structure. City laws, however, have their own rules for the building permit, particularly on the size and uncovered deck or its construction in relation to the ground level, as well as the location of the deck.

For example, if your deck is located in the backyard and it’s raised less than two feet above grade, then you may be exempt from zoning. Go beyond the two-foot yardstick and zoning laws will apply. Zoning will also take effect if you are building the deck on the front or the side where it can be immediately seen. Your contractor should be able to explain this further to you.

It should be noted, however, that not all decks will be approved, such as when the main structure could not support the new addition without reinforcing the foundation or beam support if the deck has a roof. Applying the recommended changes will cost you a substantial sum. Also, homeowner associations may balk at the changes.

Railing Requirements in the Ontario Building Code  

City inspectors will generally look at the deck foundation, structure, as well as the handrails and guardrails to make sure they meet the minimum standards. We look at the parameters for the handrails and guardrails.

The Ontario Building Code distinguishes between the guardrail and a handrail.

  1. A handrail as defined is meant to support an individual when going up or down a stair
  2. A guardrail is used to prevent somebody from falling off a raised platform. However, it can double as support similar to the function of the handrail.

Requirements for Handrails in Ontario:

  1. Handrails should be installed for stairs with more than three risers
  2. There should at least be one handrail for the stairway; or two if the risers are 1 100 mm in width or  more
  3. The outside diameter for the handrail should not be more than 43 mm and not less than 30 mm. For top rails that are not circular in shape, the graspable section should not be more than 125 mm
  4. There should be no break in the handrails, especially one that will compromise the safety of the individual. The handrail should be continuous, even including the landings
  5. Handrails must be installed on both sides of the ramp
  6. The height of the top rail should not be more than 965 mm and not less than 865 mm. This covers handrails for stairs, decks, and ramps
  7. For stairs, the height of the top rail should not less than 34 inches and not more than 38 inches from the risers
  8. The clearance between the handrail and the wall should not be more than 4.5 inches. However, you can buy prefabricated brackets which already meet the building code standards. This takes away the worry that you are violating the laws
  9. When two railings are installed, the distance between them should not be less than 27 inches apart. When only one is installed, the distance between the structure and the opposite wall should not be less than 31.5 inches
  10. The handrail should be able to withstand no less than 0.7 kN/m of load that is applied to all direction of the exterior handrail. In general, the structure should be able to withstand a load of not less than 0.9 kN/m
  11. For decks, the space between the bottom rail and the surface must not exceed four inches

Requirements for Guardrails:

  1. You should have guards installed for raised platforms if the total surface reach the 600mm threshold relative to the position of the deck to the adjacent ground
  2. The guardrails should have a sufficient barrier like when you install pickets or railings. These should not be spaced more than four inches apart
  3. The guards should be childproof and pet-proof, in the sense that it should be designed where any child can climb on top of the rail.
  4. The height of the guard must not be less than the minimum of two feet, 11 inches if the elevation is not more than five feet, 11 inches
  5. The top rail should not be less than 36 inches from the deck surface in a residential dwelling. For commercial establishments, the top rail should not be less than 46 inches
  6. If glasses are installed instead of pickets, the material should be tempered or laminated for safety reasons. Only credited companies are allowed to install glass on guards
  7. The guards must be designed to take the load of a person leaning into it. The Occupational Health and Safety Administration requires a minimum of 200 pounds of force on top of the rail. The Supplementary Standards SB-7 also outlines the load factor on the different points of the guards.

How Much it Will Cost Me to Build a Deck?

The numbers vary but it will cost you somewhere between a low of $4,000 and a high of $11,000. On average, however, homeowners spend about $7,500 to build the new additional space.

There are a lot of paperwork when you try to add a deck to your house. Fortunately, most contractors are proficient in this regard. Aside from the requirements on railings and guardrails listed above, they should also make sure that the deck itself passes the criteria on structural integrity. These include:

  1. Beams and joists
  2. Landings
  3. Piers and posts
  4. Foundation
  5. Deck blocks
  6. Composite decking materials used

After you have installed the deck, a city engineer will visit the property to inspect the construction and make sure it doesn’t violate any of the provisions in the building code and the local zoning laws.

Art Metal is a licensed manufacturer and distributor of handrails and guardrails in Ontario. With years of experience in the industry, the company is fully cognizant of the rules and parameters set in Ontario Building Code, along with the local laws on zoning and building permits.  We guarantee that the railings and guards for your new deck will comply with the strict regulations of the city every time.

Conclusion

Meeting guardrail requirements is essential for your safety, so it’s important to know and implement all of them. Also, if you don’t feel like you’ll manage including all of the rules, we at Art Metal Workshop will consult you and help with your deck railing installation.

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    A workshop located in Etobicoke, equipped with professional tools fit for any custom wrought iron work. Whatever you’re ideas for railings, gates or fences chances are we can help.

    416-848-4588

    50 Paxman Rd,

    Unit 18, Etobicoke, ON M9C 1B7

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