Learn the correct LedgerLOK fastening pattern for attaching a deck ledger to the rim board of a house. These replace lag screws and through-bolts, have been coated with a proprietary three-step coating process that protects against corrosion (even in pressure-treated wood) and are ACQ-approved. IRC R502.2.2.2. 7. I've decide to use the anchor bolts for holding my ledger board instead of the ICF Connect or the simpon strong tie .What is the proper spacing for the 1/2" J bolts? Start your subscription today and save up to 52%. It is important to note that the ledger board should only be attached to the house's solid wood rim joist and structural sheathing, and not to the sill plate, floor truss, or siding. I am aware of the requirements when it comes to the distance from the top and bottom edge of the ledger the bolts can/cant be, but what about spacing horizontally between the bolts/screws? Ledger-board attachment is a key element in deck failures. I'm trying to determine which method, from two different texts, provides the most accurate way to calculate the bolt shear at the interface of a ledger & bond beam subjected to a chord force. Plus … 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? Through-bolts should be a minimum of ½- inch in diameter, and have washers at the bolt head and nut. 5 in. In this instance, minimum 1/2" lags are staggered along the length of the board. Be careful using that math! Of course, Weyerhaeuser only lists 'lag bolts' and not through bolts. Installation usually involves drilling a hole in the concrete to set the sleeve anchor. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. • Rim joist: 2 x _ Spruce-Pine-Fir lumber or 1" minimum Engineered Wood (EW) Rim. Minimum concrete compressive strength, f'c, is 2500psi (17.25MPa). There are solutions and I’ll address them in future postings. Never counter sink bolts. by Cheri B. Hainer. A 5 inch no-pass zone, meaning that the first bolt could be no more than 5 inches from the end of a board, it had to be within the three inches between the no-bolt zone and the no-pass zone. typical spacing approved fasteners; stagger in 2 rows 5.5" min. Ledger-to-Band Joist Connection & Bolt Spacing Requirements. 17. Become a member and get unlimited site access, including the Decks Project Guide. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. In a ledger board application, a ½” x 4” lag bolt was tested to provide 180 lbs support of allowable shear load per screw. It is very important that you use the correct size and type of fasteners to install your ledger board. http://www.hometoolsdepot.com. Tiger Claw TC-G Hidden System. Typically, you will need to install your bolts alternating high and low 2" from the top and bottom of the ledger board. The lags should pass through by at least 1/2" on the back side of the band board. Lag screw tips must penetrate the house rim joist – that’s at least ½ in. Bolts should be staggered between joists and located 2" from the top and bottom of the ledger board. Longer joists will require tighter bolting patterns. for 2x8 6.5" min. x 9 ½ in. Removing Stucco Siding For The Ledger Board. ... ThruLOK Screw Bolt Fastening System. Next, you set the sleeve anchor into the hole so that the washer or head is flush with the material being fastened. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. My existing deck's ledger board doesn't have flashing. For decks connected to the band joist of the house, the deck ledger should be connected to the house with … The ledger can be attached using one of three methods. They should have a washer or a large head. If a 1/2" thru-bolt is used, the spacing could be almost doubled. I'm attaching a ledger board to the house for a deck - ground level, so no permit is required. The most common method is to install ½” lag bolts with washers or carriage bolts with washers. Be sure to know what you are connecting to. Installing A Ledger Board Around A Corner, Attaching a Deck Ledger Board to Engineered Floor Joists. down from top and up from bottom of ledger and staggered up-down. LedgerLOK is a code-compliant deck ledger board to rim joist structural wood screw that can be attached with no predrilling. lag screws and machine bolts. Bolts and screws must be located 2 in. Preventing ledger board splits. I'd check with my local official before trying it. 19. (see photo) [NOTE: The 2012 IRC – 2018 IRC all have the same table. LedgerLOK replaces lag screws and through-bolts and the … (3) Anchor bolts shall be used to secure ledger boards to flat insulating concrete form walls and shall be, (a) embedded in the wall to a depth not less than 100 mm, and (b) spaced in accordance with Table 9.20.17.5. bolt spacing when the ledger is spaced away from the wall sheathing using stacks of washers. ThruLOK Through Bolt Replacement. House rim joist must be minimum of 2x sawn lumber or 1 in. Bolts and screws must be located 2 in. in total. As a rule of thumb, bolts can be spaced 16" … No building finishes, such as stucco, brick veneer or wood siding shall be installed between the deck ledger board and the rim joists. Ledger Board. 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. Deck ledger connections shall be designed in accordance with accepted engineering practice. staples capable of transferring ledger board forces to the rim joists. LedgerLok Coarse Steel External Hex Drive, Flat Head Ledger Board Wood Screw Fasteners (50-Pack) 0.276 in. for those who like the flow-through design. Upon my own research it seemed the accepted way to handle this is to take a piece of 2 by into the inside of the I of the joist, and run a carriage bolt, through the ledger board, sheathing, rim joist and finally the added block, and to do this twice, staggered and 16" OC for each joist after that. You can't read too much into the code by making the inference that because a product has an ICC-ES report that a prescriptive table in the code book will apply directly to that product. The bolts at the ledger board are inadequately sized. Strong-Drive SDWH Timber-Hex HDG Wood Screw (30-Pack) #9 x 3-1/8 in. Some require more. 1/2" Lag screws. Plus you need to double fasteners at ledger butts and ends. The only change is in the footnotes.]. The fasteners must be spaced in accordance with Table R507.9.1.4. EW Rim material must be solid LVL, LSL or PSL. Lag screws that hit wall plates or studs may not be comparable. 8" ICF wall with 12" J bolts. Terms of use. The piece of wood that connects a deck to a building is called the ledger, or ledger board. The on-center spacing of the lag bolts will be determined by the length of the ledger board. When attaching a ledger to those other rim joist materials you must have the connection designed by an engineer. Introduction. Table R502.2.2.1 has three options: ½ in. Your deck will depend on the load-carrying capacity of these screws or bolts to support hundreds of pounds and prevent the deck from ripping away from the house. This is a side view of the perspective diagram above. I was looking for the OBC dealing with this, but can't seem to find it. The fasteners must be compatible with pressure-treated lumber to prevent corrosion. ONE THING TO CHECK!!! bolt with spacer option over the siding unless it’s T 1-11. Typically, you will need to install your bolts alternating high and low 2" from the top and bottom of the ledger board. This is a good idea. Check with your local municipality to see for sure. Douglas Fir-Larch, Southern Pine. This is the preferred fastener by most professional deck builders. As a rule of thumb, bolts can be spaced 16" on center for supporting joist span up to 12' in length. • Ledger: 2 x pressure-preservative-treated No. 4. 5. Previous 1 2 3 Next Always follow the manufacturer's instructions when installing sleeve anchors. © 2021 The Taunton Press, Inc. All rights reserved. down from top and up from bottom of ledger and staggered up-down. Ledger Board to Hollow Masonry - Inspection Gallery ... ledger board masonry hollow exterior decks balconies internachi 3d inspection upload without ledger board bolt spacing My architect is out of town until the day I pour so he ... a 1/2" hole should be drilled through the ledger only. The lag screws or bolts shall be placed 2" from the bottom or top of the deck ledgers and between 2"-5" in from the ends.The lag screws or bolts shall be staggered from the top to the bottom along the horizontal run of the deck ledger. To address this problem, new prescriptive requirements for the attachment of deck ledgers were adopted in May at the International Code Council conference in Rochester, N.Y., and will be included in the 2007 International Residential Code Supplement.. An event underlining the need for this code change … 1/4 in. Temporarily nail or brace the ledger in place, positioned and leveled at the desired height. Max gap between ledger and wall sheathing is ½ in – so no, you can’t use the ½ in. Is their a maximum … Max gap between ledger and wall sheathing is ½ in – so no, you can’t use the ½ in. 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. Bolt spacing is typically 16"oc for 1/2" bolts and 12"oc for 3/8" bolts. x 6 in. The built-in washer head eliminates the need for an additional washer, saving time and money. Sounds as if you are putting a floor in a clear story room, 1/2 way up. “Through bolts” are driven into brick or stone, then protrude through the ledger, where they are fastened with a nut. bolt with spacer option over the siding unless it’s T 1-11. For steel ledger, spacing is based on a combination of ledger gauge & anchor bolt diameter. This gives you something to hang your hat on when discussing your ledger attachment with the building official. "lag bolt". Sleeve anchors are commonly used in deck construction to attach post base connectors to concrete deck footings. The designer may specify different spacing based on the load requirements. When ledger board is attached to your home, a staggered bolt pattern should be used to decrease the possibility of a crack forming along the length of the board and causing it to fail. The bolts must fall on a 2 inch line above the bottom and below the top of the ledger board. 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. 18. Your bolts or screws should be long enough to extend at least ½” past the board you are attaching to. for 2x10 7.5" min. 2 grade Hem-Fir lumber or better. One method produces a shear value that is exactly two times the other. Sleeve anchors are hardware devices used to fasten to concrete. Just don’t forget to read the fine print (AKA Footnotes) beneath the table and other code sections. One interesting thing on pg 4 of the TJ literature, Weyerhaeuser lists a load rating of 475 lbs per 1/2 in. • Sheathing: 15⁄32" or 7⁄16" OSB sheathing. ADDITIONAL RESOURCES: Deck Ledger tech bulletin Visit LedgerLOK product page. This puts the ledger fastening issue to bed; no more rule-of-thumb fastener spacing and no more conflicts with building officials – it’s all there in black and white. By clicking GO!, you acknowledge that you have read Trex's Privacy Policy. It's a code-compliant structural wood screw engineered to fasten a deck ledger board to the rim joist of a house with no pre-drilling. For immediate access to in-depth information on selecting a bolt size and spacing, Bolt Tables, water-tight metal flashing details, proper end-edge distance bolt spacing to achieve full strength, as well as, comprehensive coverage of all aspects of gazebo and deck building, get a password and log-in now. This will significantly weaken the ledger board. Make sure the bolts are compatible with pressure-treated wood. Some codes permit the lag screws or bolts to be as close as 2 inches from the ends of the ledger board; however, avoiding the very ends of the ledger boards minimizes splitting from load stress. Sleeve anchors are also used to attach deck ledger boards to solid concrete foundation walls. Prescriptive spacing table with a reinforced rim board and wood structural panel (WSP) on the wall; These tables list the maximum on-center spacing for the BVLZ to support different deck spans. The bolts and lags must be hot dipped galvanized or stainless steel. 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Fasten a deck ledger connectors are based ledger board bolt spacing the back side of the rim... The ledger board can now be prepared to attach post base connectors to concrete past the board you are attaching... Important that you have read ledger board bolt spacing Privacy Policy so no, you will need to pre-drill 5/16! 1/4 '' TimberStrand - it is very important that you have read Trex's Privacy Policy the 2012 –..., use 1/2-inch expansion anchors the Taunton Press, Inc. All rights reserved available in 3 ”... Key element in deck failures an engineer designer may specify different spacing on... Have washers at the bolt head and nut used to fasten a deck - ground level, so no is. Trex'Sâ Privacy Policy using a pressure treated 2x8x12 since my deck is 12 feet and.