Minimum 36 ”at all points above the permitted handrail height, Minimum 31.5 "width below handrail height where handrail is on one side, Minimum 27 "width below handrail where handrails are on both sides, Maximum rise of 7-3 / 4 ”- maximum difference among risers 3/8", Minimum tread width of 10 "- maximum difference among treads 3/8". Understand what design loads and safety factors for testing are. All Rights Reserved. Commercial deck guardrails, such as those found at restaurants, bars, and at multifamily homes such as apartments or condos, are required to be 42 inches high, minimum. Everyone wants the investment they put into their deck to last. The reasoning is that this 4-inch space is the average diameter of a baby's head. Decks are great for a lot of things: grilling, entertaining, and even catching a few rays. Avoid a bouncy, soft deck. This is all great information to learn before you start your big project. Baluster strength requirements: Balusters and in-fill rails must sustain a minimum testing force of 125 pounds over a 1-square-foot area. To frame a lift out hatch, mark it’s location on the deck’s joists. © 2004-2019 By contrast, deck code is truly a matter of life and death and preventing serious injury. Treads must be at least 10 inches deep, measuring from front to back. So it is irrelevant if you are building a deck designed to withstand 70 psf. The deck joist span is distance between supporting beams below the joists. Material: HOW TO PICK THE RIGHT MATERIAL? If the hatch is to be wider than 14 ½ inches, or whatever the spacing of your joists will be in that area, a section of one or more joists will need to be removed. Lags must be hot zinc coated or stainless. The decking span you choose will effect the feel and potentially the safety of your deck. The bench listed below is designed for extreme use, such as a lot of weight and playful children, and measures 10 feet long by 12 inches wide. Stair treads must sustain a weight of at least 300 pounds in an area no more than four inches square. One of them is to use ready made brackets (shown) fabricated just for that purpose. But they do make something, in particular, a bit tricky—landscaping. When you're finished you'll have a high-quality bench that cost you way less than the one you would buy at a furniture store.. USA, CA, UK, AUS. The city will tell you right up front what the setbacks from property lines or sidewalks are. Great discussions about using the Deck Foot Anchor™. The code has some very specific requirements for deck stairs: Deck balusters: Balusters are required to be 4 inches apart or less. 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. The "load" is made up of the "dead load" and the "live load".​​​​​​​. And they are the hardest and most labor intensive part of building a deck. Deck benches: Homeowners concerned about preserving the view from their decks may wonder if benches are acceptable substitutes for deck guardrails. Chat about every esoteric  railing topic  under the sun. CANADA RESIDENTIAL RAIL HEIGHT AND DIMENSIONS. The bench should be at least 51 inches wide if you plan on having two people sit on the bench… It's like hanging around the office watercooler. Treads must be at least 10 inches deep, measuring from front to back. These are simple handrail shapes that are permitted by building codes for decks. Step by step explanation ! If so, be advised that toe-nailing is no longer an accepted connection, according to the current International Building Code (IBC). Input your elevation change and this will figure out your rises and runs, Maximum 36 "oc solid stringer spacing for 2" thick treads, Maximum 18 "oc notched stringer spacing for 2" or 5/4 "thick treads, Maximum nosing of 0.75 "to 1.25" - maximum nosing radius of 9/16 ", Closed risers: minimal nominal 1" thick riser material, Handrails must not project inwards more than 4.5" on either side of stairway. Input your elevation change and this will figure out your rises and runs . As a result, your locality may adapt the IBC to suit the needs of its citizens. Step 1 - Take Measurements Decide where you want the bench to be placed and measure the distance to make sure that it will fit into place. While a 12-inch drop will rarely prove to be fatal to a healthy adult or child or result in serious injury, it still can twist an ankle or injure a lower back. What you will notice from this checklist is that there is not really a specific deck building code per se. Strength of guardrails and balusters is usually simply estimated by a building inspector who will lean or push against the components. Lag screws must go through band board at least 1/2 ". Guardrails are required once the deck is 30 ″ or more above grade. FOOTINGS: THE FIRST STEP TO BUILDING A DECK. Get daily tips and tricks for making your best home. Corrosion resistant flashing is required for connecting to wood framed buildings. Although this is the average range, the height of a bench is dependent on its use. Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. Through bolts, lag screws or expansion anchors should be at least 1/2 "in diameter. ​​​​​The city will tell you right up front what the setbacks from property lines or sidewalks are. By using The Spruce, you accept our, Minimum Strength for Guardrails and Balusters, Check Your Deck for These 7 Repair Issues, International Building Codes: IBC, IRC, ICC, How to Seal a Deck With Thompson's WaterSeal, Deck Railing Styles and Installation Guide, Stair Design Ideas: Metal Balusters, Railings, and Posts. Make sure your project does not extend into those areas. Different guardrail heights at different elevations above grade for Canadians.