Where balusters butt up against a lower railing, the gap between the bottom of the railing and the deck surface also must be no more than 4 inches. Deck benches: Homeowners concerned about preserving the view from their decks may wonder if benches are acceptable substitutes for deck guardrails. 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. Be sure to speak to your local permitting office and consult your applicable code before building. Treads must be at least 10 inches deep, measuring from front to back. ​​​​​The city will tell you right up front what the setbacks from property lines or sidewalks are. Make sure your project does not extend into those areas. Mark the four corners of the hatch required and add 1 … Basically any regulation can be challenged and depending on your circumstances, may be set aside or "varied". The minimum height of the railing varies based on the height of the deck. Any analysis of what load a structure may bear upon itself and its foundation must involve the support post network and soil bearing capacity. It pays to keep on top of the building code requirements for decks because the code is continually changing. FOOTINGS: THE FIRST STEP TO BUILDING A DECK. 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. © 2004-2019 Decksgo.com. Material: HOW TO PICK THE RIGHT MATERIAL? The dimensions in the following table are based on a total load of 50 psf for the particular species of wood. Guardrails are required once the deck is 30 ″ or more above grade. Input your elevation change and this will figure out your rises and runs . It's like hanging around the office watercooler. Your selection of decking material will determine the maximum spacing of your joist. Step by step explanation ! In that case you would have to refer to the building code or other engineering manuals usually found at your public library to determine incremental differences. These benches are designed to be part of the deck railing system. This is a minimum required height for residential structure—higher guards are acceptable. It is understood that people will lean against guards, and code requires that these guardrails be strong enough to resist collapsing, even though only minor injuries would result. Learn the math and how to trace out the number and size of rises and runs to cut out your stair stringer. If so, be advised that toe-nailing is no longer an accepted connection, according to the current International Building Code (IBC). Guardrail strength requirements: The International Building Code mandates that guardrails must be able to sustain a 200-pound force at the mid-span between posts, without excessive deflective. Decks 24 "to 5-10" (180 cm) need 36 "guards and anything above 5-10" requires a 42 "high railing. The Deck Post Size Table will help you answer that question or learn more about loads for posts. In a four-year study, the Consumer Product Safety Commission found that close to 179,000 people were injured on decks and porches, with over 11 percent of those injuries being the result of structural failure or collapse. Unfortunately, benches are not an acceptable alternative. Because small children may be tempted to stick their heads between balusters and could get their heads lodged in place, the 4-inch rule is designed to prevent this from happening. Before you can use the Deck Post Size Table in a meaningful way you have to understand the loads that your deck must withstand. Cut two pieces of 2x6 lumber to length. As a model code, the IBC is developed by the International Code Council for states, cities, and other local groups to both adopt and adapt for their use. 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. On decks tall enough to require guardrails, they must still be installed behind the benches, rising to the minimum 36 inches above the decking surface. We've tried to summarize them and put them all together for you. When it comes to the bench's width, there aren't many set guidelines except a starting point. Covenant and easements are generally covered by local building departments. If you do decide to include a guardrail on a low deck, its height and the spacing of the balusters is up to you. Connection Diagrams:   FIVE DIFFERENT TECHNIQUES. USA, CA, UK, AUS. Because decks may be raised and oddly shaped, it can be tough to figure out exactly how to plant beautiful and lush flowers and shrubs around the structure. The reasoning is that this 4-inch space is the average diameter of a baby's head. Park benches and other street furniture are generally secured to the ground, both for safety and to avoid theft. 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. Lag screws must go through band board at least 1/2 ". Attachment methods vary depending on the style of stairs but this is a very common and reliable technique. 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. 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. By contrast, deck code is truly a matter of life and death and preventing serious injury. All Rights Reserved. If you see a deck that has no guardrails (also called a low-rise deck), this might be the reason: Its height is below 30 inches. 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.. Maximum 16'-6 "span for solid stringer (southern pine), Maximum 7'-0 "span for notched stringer (southern pine). How deep are benches? Treads must be at least 10 inches deep, measuring from front to back. Great discussions about using the Deck Foot Anchor™. As a result, your locality may adapt the IBC to suit the needs of its citizens. This deck contains a whopping 37 Trainer cards and only five Energy cards. Thirty-six inches is the most common residential height, but some jurisdictions vary. Many code requirements, while important, rarely touch upon life and death matters. The height of a bench is typically between 18 and 20 inches (46-51 cm). The Titan Wood Post Anchor™ is a real work horse and solves a lot of problems. Get daily tips and tricks for making your best home. So it is irrelevant if you are building a deck designed to withstand 70 psf. Building deck benches on your porch or deck allows you to have some usable space, without having to purchase an expensive outdoor table and chair set. The city will tell you right up front what the setbacks from property lines or sidewalks are. learn more about building decks from builders and people like you. Disabled people, too, can benefit from having guardrails on low-rise decks. To frame a lift out hatch, mark it’s location on the deck’s joists. Find out how people use it. The minimum height of the railing varies based on the height of the deck. The rise, or the vertical distance from one tread to the next, can be no more than 7 1/4 inches high.