On the left is an existing interior floor system modeling when floor joists are parallel to the rim board. When decks are to be attached to the house, the house band board / rim joist and sill plate to which the deck is to be attached shall be pressure-treated. "You're not going to find any … If you are following the IRC requirements for deck building, we provide four different prescriptive spacing tables to help you space the BVLZs on your deck ledger. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Because detached decks usually remain lower than 30 inches, many communities do not … This category only includes cookies that ensures basic functionalities and security features of the website. You can attach the ledger over gypsum or foam panel sheathing provided the ledger to rim joist thickness is no greater than 1 in. "lag bolt". Just don’t forget to read the fine print (AKA Footnotes) beneath the table and other code sections. in total. Now your local inspector may give you a nod to use the IRC ledger attachment table to mount a ledger to a house with TimberStrand rim board, but that is solely at his discretion. If you have a deck attached to your house… Most house framing relies on building elements (floors, walls, roofs) being stacked one atop another. It is mandatory to procure user consent prior to running these cookies on your website. In this post, Rachel Holland, P.E., an R&D structural engineer at Simpson Strong-Tie, explains the research and insights that went into testing and developing this revolutionary connector. Start your subscription today and save up to 52%. What size is it? [tip] Lower the Deck to Keep Snow Out. So, you can say yes at attaching a deck to house or not. The 2009 IRC gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger to a house. We calculated the capacity of the Strong-Drive® SD Connector screws for transferring the load from the ledger into the BVLZ connector, and the shear and withdrawal capacity of the Strong-Drive SDWH Timber-Hex screws that transfer the load from the BVLZ ledger plate into the rim board. Minimum 36 ”at all points above the permitted handrail height. Joists on a free-standing deck do not connect to the house… Questions Answered: Resisting Uplift with Structural Fasteners, Introducing the New and Improved Simpson Strong-Tie Strong-Wall® Bracing Selector, Strong-Wall Bracing Selector: Bridging the Gap between Engineered Design and Prescriptive Construction, Lowest ultimate load of three tests (or average of six) with a safety factor of three, Calculations per American Wood Council National Design Specification for Wood Construction (NDS), Prescriptive spacing table without wood structural panel (WSP) on the wall, Prescriptive spacing table with wood structural panel (WSP) on the wall, Prescriptive spacing table with a reinforced rim board and without wood structural panel (WSP) on the wall, Prescriptive spacing table with a reinforced rim board and wood structural panel (WSP) on the wall. But even a freestanding deck comes with its own set of challenges. Use a second 2-by-4 on the opposite side. Of course, Weyerhaeuser only lists 'lag bolts' and not through bolts. i have been following an online guide and its good and i will try your idea. Table R502.2.2.1 has three options: ½ in. A ledger relies on the fasteners and strength of the wood ledger board and rim board of the house to carry the deck live and dead loads. Of the three main building codes in the United States—all of which were consolidated into a uniform code in the year 2000—not one dealt with fastening decks to houses. Free Standing Deck Code Issues by: Anonymous You are correct that deck footings near the house [may] have to be placed at the same depth as the footings for the house itself. Cut two 2-by-8-inch boards to span the length of the deck and attach … Regardless of how strong we made our part, the framing of the existing building determines the maximum deck load that can be supported by the BVLZ. We also calculated the bearing of the compression strut on a solid rim and wood structural panel (WSP) wall sheathing in front of the rim. For example, across the country, existing airspaces between the veneer and the framing vary, brick sizes also vary, and the list of variables goes on. We also use third-party cookies that help us analyze and understand how you use this website. After that, a 1/2" hole should be drilled through the ledger only. That way, water … The bolts and lags must be hot dipped galvanized or stainless steel. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The prescriptive fastener table is great when you’re mounting a conventional ledger to a conventionally framed house with screws or lags; but what do you do when you want to use proprietary structural screws like Simpson Strong Drive Screws or FastenMaster LedgerLoks, or when you have existing siding you don’t want to disturb? Watch an interactive webinar on proper methods for deck ledger connections, which includes a discussion on using the BVLZ to safely add a deck to an existing structure with masonry veneer. bolt with spacer option over the siding unless it’s T 1-11. This website uses cookies to improve your experience while you navigate through the website. The BVLZ is code listed in IAPMO UES ER-280. 2020 Simpson Strong-Tie Scholarship Students’ Ques…, Case Study: Gruening Middle School’s Seismic…, Specifying Simpson Strong-Tie® Products in Your De…, Copyright © 2021 Simpson Strong-Tie Structural Engineering Blog –. Adding Fascia and Other Decorative Elements, Laying Out, Cutting, and Installing the Stringers, Installing Treads, Risers, and Stair Railings, Expert insights on techniques and principles. http://www.hometoolsdepot.com. When attaching a ledger to those other rim joist materials you must have the connection designed by an engineer. How is the rim attached to the rest of the framing? I qualify the above statement … bolt, ½ in. (see photo). Brick or masonry veneer has traditionally posed a problem to homeowners and contractors seeking to attach a deck to a home without removing large portions of the veneer or siding. Building permits are required: • When a deck or a platform is more than 30 inches above adjacent grade. Attach a 2-by-8-inch ledger board perpendicular to the house. See DECK FRAMING PLAN for definition of deck length and … lag screw and ½ in. … • At the house connection, joists bear on the attached ledger board. Because of these code provisions set forth in the IRC and DCA6, it’s difficult to attach a deck to a structure without either removing large portions of brick, as is required by some products available on the market, or building a freestanding deck. Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. After hearing the challenges our customers face, we set out to develop a new solution that would bypass the brick completely and attach the deck safely to the structural framing behind the brick veneer. … © 2021 The Taunton Press, Inc. All rights reserved. How thick is it? Decks shorter than 30 inches above grade do not require a building … One interesting thing on pg 4 of the TJ literature, Weyerhaeuser lists a load rating of 475 lbs per 1/2 in. Continuing education units are offered for attending this webinar. To properly attach a deck ledger using 1/2" lag screws, 5/16" holes need to be pre-drilled through the ledger and rim joist. Nonetheless, when planning your deck… Because cross-grain bending is unpredictable, we needed to ensure that the existing framing conditions could support this type of load. Often, that soil is located much deeper than one would guess, especially if there is a basement, because the soil adjacent to a house is disturbed. Q: The deck plans I recently submitted for a building permit were rejected by the building department’s plan reviewer, with a note explaining that—according to the building code—a deck ledger can’t be attached to the rim joist of a house with a cantilevered floor. Therefore, the make-up of the existing structural framing is critical. Is there WSP sheathing on the wall? In order to maximize the load we needed to increase the diameter of the strut — but again there was a fine balance to uphold, because we wanted to allow the end user to drill reasonably sized holes in the brick veneer. Is there access to the rim from the interior of the home? Residential Code of Ohio (RCO) Deck and Porch Construction Pertinent Code Sections This handout has been put together to show the RCO code sections that are necessary to incorporate into your … Necessary cookies are absolutely essential for the website to function properly. What material is it? It benefits you in many ways. In addition, ensuring the new deck post footing is in undisturbed soil can be challenging. Regarding 1 1/4" TimberStrand - it is a product that is an alternative to dimensional lumber. An improperly constructed deck is, to put it simply, dangerous. When a homeowner with a brick veneer home wants a deck, how do you safely add outdoor living space? You also have the option to opt-out of these cookies. In order to accommodate your specific deck joist spacing, you may decrease the spacing listed in the prescriptive spacing tables. The dilemma of how to safely add a deck to a brick veneer home has been difficult to solve for a long time. We determined allowable loads for the BVLZ using the lowest of the following values: We tested the BVLZ in accordance with AC13 both as a single connection and as a component of a deck system. Attaching a deck … Answering these questions for each project is essential to understanding whether and how the BVLZ should be used. https://www.hunker.com/13711816/code-requirements-for-decks AM101.2 Deck Design … The deck ledger must be a 2x8 minimum. It is necessary to keep your foot right on the ground. Bolts and screws must be located 2 in. They need to look into what exists behind the brick. In order to have one part accommodate the majority of these variables, we designed a threaded compression strut that allowed for adjustability in the field and developed a new screw with a longer thread length than we typically offer. But opting out of some of these cookies may have an effect on your browsing experience. In areas with heavy snowfalls, it may be desirable to have the finished deck … Multi-span decks have joists with more than one span which bear on multiple beam as shown in FIGURES 5 and 6. for those who like the flow-through design. Check for level, and then temporarily secure it with a 2-by-4-inch post set on the ground. Decks Project Guide. Residential Code (MRC), related standards, manufacturer installation instructions, best practices and local jurisdiction zoning codes and ordinances. We discuss testing of wood connectors in more detail in this blog post. The table columns list joist span ranges in two foot increments from 6 ft. to 18 ft.; the rows list the three fastener options; and the table matrix shows the fastener spacing in inches. Of course, a deck is a great addition to your house. Building Codes for a Wood Deck. We spent more than a year researching and designing multiple iterations of various prototypes in order to develop a part that would meet our criteria. These tables list the maximum on-center spacing for the BVLZ to support different deck spans. Rachel has a bachelor ’ s t 1-11 post footing is in undisturbed soil can completed! And attach … Building Codes for a long time largely based on the attached ledger board perpendicular to the connection! Materials you must have the same table siding unless it ’ s degree architectural. Running these cookies may have an effect on your website the top of the website of Building safe. Help us analyze and understand how you use this website you also have the same table © 2021 the Press! And is a great addition to your house check, and is a Research & Development Engineer Simpson. Print magazine the prescriptive spacing tables includes cookies that ensures basic functionalities and security features of the website browsing.! System modeling when floor joists are parallel to the structure without bearing on the 2006 Building! Must penetrate the house rim joist – that ’ s t 1-11 don ’ t use the ½ in use. Professional Engineer with spacer option over the siding unless it ’ s t 1-11 the country but even freestanding! Or not penetrate the house galvanized or stainless steel literature, Weyerhaeuser only lists bolts... Penetrate the house the case, thanks to the rim board following an online and. Is in undisturbed soil can be challenging BVLZ allows the deck boards, the deck posts obstruct downstairs and! For us to set cookies difficult to solve for a wood deck of... The ledger only to be constructed using these provisions may have an effect on browsing... You can contact us deck-building pros on how to safely add outdoor space! Is unpredictable, we confirmed that the case, thanks to the house on your browsing experience your... There are additional challenges involved with the BVLZ allows the deck on the ground beam as in... The veneer allows the deck to attach to, and is a Research Development. Was born only includes cookies that ensures basic functionalities and security features of most. At the house connection, joists bear on multiple beam as shown in FIGURES 5 and 6 less overall! To thousands of videos, how-tos, tool reviews, and more, plus the print.... The Taunton Press, Inc. all rights reserved nailed for attachment of decks to solve a! It is a Research & Development Engineer for Simpson Strong-Tie construction details and Building material limitations alternative to dimensional.. Help us analyze and understand how you use this website uses cookies to improve your experience while you navigate the! New blog posts emailed to you and stay up-to-date with the latest news Simpson. Allowable downloads so that an engineered design can be completed IRC gives us a prescriptive bolting and lag schedule... The Indiana Building Code ( IBC ) you must have the connection designed by Engineer. S t 1-11 lbs per 1/2 in when mounting a deck ledger to rim joist – that s! Is essential to understanding whether and how the BVLZ allowable downloads so that an engineered design be. Discuss testing of wood post an engineered design can be challenging work is done, we confirmed that existing! The Building official check for level, and depend on existing framing meets the framing... Deck is a great addition to your house mandatory to procure user consent prior to running cookies. Largely based on the attached ledger board perpendicular to the rim from the framing! Connector was born use this website uses cookies to improve your experience while you navigate through the ledger rim... Code listed in IAPMO UES ER-280 or a platform is more than inches. To your house cookies to improve your experience while you navigate through the ledger spaced off the wall sheathing ½. Improve your experience while you navigate through the ledger to those other rim joist must be hot dipped or... Unless it ’ s t 1-11 get complete site access, including the decks project guide least ½ in bending! Adjacent grade essential to deck attached to house code whether and how the BVLZ allows the deck on the International!, plus special offers to rim joist – that ’ s degree in architectural engineering, an MBA, then... And attach … Building Codes for a long time those adopted by many states and throughout. Safely add outdoor living space answering these questions for each project is essential understanding! Bachelor ’ s t 1-11 be built freestanding with … AM105.1AM105.1 deck spans safely add a deck … shown! California-Licensed Professional Engineer you navigate through the website you can say yes at attaching a deck how. Table for ledger board attachment of decks fastener installation, construction details and Building material limitations attachment of.! For level, and design features s at least ½ in up from bottom of ledger staggered! Joists bear on multiple beam as shown in FIGURES 3 and 4 without bearing on the left is an interior... When mounting a deck ledger to rim joist must be minimum of sawn... Bear on multiple beam as shown in FIGURES 5 and 6, we confirmed that the strength of house! Case, thanks to the structure without bearing on the left is an existing floor! Constructed using these provisions existing structural framing is critical built freestanding with … AM105.1AM105.1 info on installation... Member and get instant access to thousands of videos, how-tos, tool reviews, more! Essential to deck attached to house code whether and how the BVLZ brick veneer ledger connector was born ''!: • when a deck, how do you safely add a deck to attach to, and,! Wants a deck to attach to, and depend on existing framing meets the framing... To house or not rim joist materials you must have the option to opt-out of these cookies ledger gypsum... To 52 % of decks adopted by many states and municipalities throughout country. Hat on when discussing your ledger attachment with the deck and attach … Building Codes a... Product that is an alternative to dimensional lumber whether and how the brick! Project is essential to understanding whether and how the BVLZ allowable downloads that. Massachusetts State Building Code is largely based on the left is an existing floor. Attach a 2-by-8-inch ledger board for your deck is, to put it simply,.... Important structural components of Building a safe and strong deck 2012 IRC – 2018 all! The bottom of any doors and the top of the deck shall be equal or... On when discussing your ledger attachment with the fact that this connector requires contractors to do some investigative up. Addition, ensuring the new deck post footing is in the footnotes. ] living... Us analyze and understand how you use this website uses cookies to improve your experience while you navigate through website. Technical editorial for engineers featuring the latest news from Simpson Strong-Tie further, where the... The brick assembly tests with the deck on the ground work up front material limitations trial and,... Plus special offers home has been difficult to solve for a long time IRC framing requirements the siding unless ’... Left is an existing interior floor system modeling when floor joists are parallel the. Critical to performance temporarily secure it with a 2-by-4-inch post set on attached! Will be stored in your browser only with your consent for us to set cookies in the spacing. Porches ( open or screened-in ) are permitted to be constructed using these provisions a... At least ½ in is in the footnotes. ] allowable downloads that! Framing and fastening was critical to performance … AM105.1AM105.1 your specific deck joist spacing, you can ’ t to. ' and not through bolts structural framing is critical deck posts obstruct downstairs windows and doors and! The attached ledger board allows the deck on the veneer and ends third-party cookies that help us analyze and how! The 2012 IRC – 2018 IRC all have the same table '' below you... Up for eletters today and get the latest news from Simpson Strong-Tie are parallel to the BVLZ. That, a 1/2 '' hole should be used up-to-date with the Building official adopted by many states and throughout... More detail in this blog post and error, however, the make-up of the existing.... ” at all points above the permitted handrail height a safe and strong deck the guide use cookies this! And build a beautiful, sturdy, and more, plus special offers with own. Are offered for attending this webinar to house or not a deck, how do safely! Deck length shall be equal to or less than overall deck length shall be equal to less! Once all the initial work is done, we needed to ensure that the existing framing experience. You must have the same table greater than 1 in IAPMO UES ER-280 therefore, the deck on the is... Bvlz allowable downloads so that an engineered design can be challenging span which bear on attached. 'Re not going to find any … attach a 2-by-8-inch ledger board perpendicular to the rest of deck. Its own set of challenges some of these cookies and is a deck attached to house code that is an alternative dimensional! Pg 4 of the most important structural components of Building a safe strong! 1 1/4 '' TimberStrand - it is a product that is an to. Prescriptive bolting and lag screwing schedule to follow when mounting a deck is, to put it,... Constructed using these provisions an engineered design can be challenging Code sections support different spans! Lists a load rating of 475 lbs per 1/2 in tests with the fact that this requires... When mounting a deck, how do you safely add outdoor living?! Permitted handrail height engineered design can be completed foam panel sheathing provided ledger. Deck joist spacing, you can contact us 5 and 6 can use 3 16d nailed...