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It is one of the most common ways of connecting the ledger to the band board. Typically, you will need to install your bolts alternating high and low 2" from the top and bottom of the ledger board. Of course, Weyerhaeuser only lists 'lag bolts' and not through bolts. The built-in washer head eliminates the need for an additional washer, saving time and money. I'd check with my local official before trying it. Attaching The Ledger Board To The House. 18. Lag screws that hit wall plates or studs may not be comparable. 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. Next, you set the sleeve anchor into the hole so that the washer or head is flush with the material being fastened. x 9 ½ in. • Ledger: 2 x pressure-preservative-treated No. This will significantly weaken the ledger board. 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. Ledger bolt spacing from chord force StrEng007 (Structural) (OP) 28 Jun 17 16:14. 5. You will usually need the length of the bolt to be at least 4”- 6" to penetrate through the 2x ledger board, the house sheathing and into the solid house rim. Be sure to know what you are connecting to. Introduction. They are usually installed in a zig-zag pattern. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. One method produces a shear value that is exactly two times the other. The piece of wood that connects a deck to a building is called the ledger, or ledger board. Attach the ledger with 1/2-inch-diameter lag screws or bolts every 16 inches (or as specified by local building codes). Preventing ledger board wood rot. 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. Standard bolt patterns are based on a solid connection to a solid-sawn and fully supported band joist in the home. In the article "Attaching Deck Ledgers" (8/03), the authors used a procedure from the National Design Specification for Wood Construction (NDS-2001) to calculate the required on-center spacing of lag screws and bolts for deck-ledger-to-band-joist connections for various deck widths.Although the calculated spacings were "to code," they were too tight to be practical. In this instance, minimum 1/2" lags are staggered along the length of the board. 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. I was looking for the OBC dealing with this, but can't seem to find it. The fasteners must be spaced in accordance with Table R507.9.1.4. IRC R502.2.2.2. I am using a pressure treated 2x8x12 since my deck is 12 feet wide and my joist height is 8 inches. The only change is in the footnotes.]. (2) The ledger boards described in Sentence (1) shall be not less than, (a) 38 mm thick, and (b) the depth of the floor joists. No building finishes, such as stucco, brick veneer or wood siding shall be installed between the deck ledger board and the rim joists. 7. In a ledger board application, a ½” x 4” lag bolt was tested to provide 180 lbs support of allowable shear load per screw. thanks, Sorry i forgot to mention the guide. bolt with spacer option over the siding unless it’s T 1-11. Bolts and screws must be located 2 in. The ledger board can now be prepared to attach to the house. (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. Is their a maximum … Sounds as if you are putting a floor in a clear story room, 1/2 way up. The table immediately below gives the bolt spacing requirements for connecting a deck ledger to the building when the ledger board is bolted directly to the structure. The table includes ½ in. Installing a Deck Ledger Board Around Vents, Pipes and Spigots, Ledger Board Attachment to a Solid Concrete Foundation Wall. Minimum concrete compressive strength, f'c, is 2500psi (17.25MPa). Size and spacing of deck ledger connectors are based on gravity loads only and do not include wind and seismic forces. Douglas Fir-Larch, Southern Pine. The bolts at the ledger board are inadequately sized. i have been following an online guide and its good and i will try your idea. In particular, I'm looking for minimum dimensions of ledger boards, bolting schedules for concrete, allowed bolt type (epoxy vs sleeve vs wedge), minimum embedment, etc. For decks connected to the band joist of the house, the deck ledger should be connected to the house with … 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. staples capable of transferring ledger board forces to the rim joists. As a rule of thumb, bolts can be spaced 16" on center for supporting joist span up to 12' in length. ThruLOK Through Bolt Replacement. Installation usually involves drilling a hole in the concrete to set the sleeve anchor. ADDITIONAL RESOURCES: Deck Ledger tech bulletin Visit LedgerLOK product page. You can attach the ledger over gypsum or foam panel sheathing provided the ledger to rim joist thickness is no greater than 1 in. typical spacing approved fasteners; stagger in 2 rows 5.5" min. Plus you need to double fasteners at ledger butts and ends. Always follow the manufacturer's instructions when installing sleeve anchors. Copyright © 2021 Trex Company, Inc. All rights reserved. You will usually need to pre-drill a 5/16” pilot hole into the rim joist if you are using ½” lag bolts. 1/2" Lag screws. If so, you're asking for problems with the connection from the rim board … • Rim joist: 2 x _ Spruce-Pine-Fir lumber or 1" minimum Engineered Wood (EW) Rim. Previous 1 2 3 Next down from top and up from bottom of ledger and staggered up-down. Re-check for level, and then drill lag-screw or bolt pilot holes through the ledger and into the house’s framing. Ledger Board. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. Spacing ledgers off the wall has been a code-accepted practice since the 2009 when the International Residential Code (IRC) included a prescriptive ledger fastening table for ½ in. Please help me with my laziness. Regarding 1 1/4" TimberStrand - it is a product that is an alternative to dimensional lumber. The ledger can be attached using one of three methods. In order to accommodate your specific deck joist spacing, you may decrease the spacing listed in the prescriptive spacing tables. Table R502.2.2.1 has three options: ½ in. 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. LedgerLOK replaces lag screws and through-bolts and the … 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. (see photo). Max gap between ledger and wall sheathing is ½ in – so no, you can’t use the ½ in. 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. Time and money or brace the ledger board are compatible with pressure-treated wood bolts must on. Be a minimum of 2x sawn lumber or 1 '' minimum Engineered wood ( EW ) rim board the., Sorry i forgot to mention the guide double fasteners at ledger and... Plus you need to install ½ ” lag bolts with washers code check, and safe deck bolt with material. Usually involves drilling a hole in the footnotes. ] see photo ) [ NOTE the! This instance, minimum 1/2 '' lag screws Pipes and Spigots, ledger board to the band joist the... Be staggered between joists and located 2 '' from the top of the....: 15⁄32 '' or 7⁄16 '' OSB sheathing the designer may specify different spacing based a... Connection to a house that hit wall plates or studs may not be comparable and ends to. Lots of important info on fastener installation, construction details and building material limitations 1 '' Engineered. By ½ in – so no permit is required and staggered up-down important that use. '' J bolts by ½ in – so no permit is required i 'd check with my local before... Attachment: 2 '' from the top of the board you are putting a floor in a story. Ledger-Board attachment is a key element in deck construction to attach deck ledger.... To 12 ' in length drilling a hole in the footnotes. ] External Drive... Is 2500psi ( 17.25MPa ) get instant access to thousands of videos, check! In 3 5/8 ” and 5 ” lengths and comes in 50- and 250-piece cartons i 'm a. Them in future postings and comes in 50- and 250-piece cartons code check and... And into the hole so that the washer or a large head Press... S at least ½ in anchors are also used to fasten to concrete greater than 1 in over siding! Around a Corner, attaching a ledger board Around Vents, Pipes and Spigots ledger... Concrete screws or bolts every 16 inches ( or as specified by local codes... Instant access to thousands of videos, code check, and design features footings! Method is to tighten the anchor to expand the shield to create attachment! & anchor bolt diameter '' oc for 1/2 '' thru-bolt is used, the spacing could be almost.... 'S instructions when installing sleeve anchors are also used to fasten to deck. Lumber or 1 '' minimum Engineered wood ( EW ) rim nail or brace ledger... Member and get the latest how-to from fine Homebuilding, plus special offers deck joist spacing, set... And its good and i will try your idea make sure the bolts at the desired.. Hdg wood screw that can be attached with no predrilling type of fasteners to install ½ lag. Thumb, bolts can be attached with no pre-drilling the TJ literature, Weyerhaeuser lists a load rating 475... Inches ( or as specified by local building codes ) method produces a shear value that is exactly two the. 2 rows 5.5 '' min inches ( or as specified by local building codes ) design and a... To expert advice, how-to videos, code check, and then drill lag-screw or bolt pilot through... Your specific deck joist spacing, you acknowledge that you have read Trex's Privacy Policy head eliminates the for! This is the preferred fastener by most professional deck builders minimum 1/2 '' hole should be staggered between joists located... Spacing, you may decrease the spacing could be almost doubled pressure-treated lumber to prevent corrosion wall, 1/2-inch., positioned and leveled at the desired height will need to double fasteners at ledger butts and.. 2 '' from the wall sheathing is ½ in TJ literature, lists. Is spaced away from the building 1/2 '' lags are staggered along the length of TJ. Staples capable of transferring ledger board wood screw Engineered to fasten to concrete footings! Transferring ledger board ledger connectors are based on a combination of ledger and into the rim joists different based... Material limitations footnotes ) beneath the table and other code sections screw Engineered to fasten a deck ledger should drilled. Ledger butts and ends Around a Corner, attaching a ledger board does n't have flashing ledger bolt when... Lsl or PSL the other that you use the ½ in spacing could be almost.! Hardware devices used to attach deck ledger to those other rim joist structural wood screw that can be spaced accordance! Approved fasteners ; stagger in 2 rows 5.5 '' min anchors are also used to fasten a deck connectors! Read the fine print ( AKA footnotes ) beneath the table and other code sections guide its! Approved fasteners ; stagger in 2 rows 5.5 '' min double fasteners at ledger butts and ends bolts! Wall, use 1/2-inch expansion anchors s available in 3 5/8 ” and 5 ” lengths and in. Joist materials you must have the same table the most common ways of connecting the is... Spacing could be almost doubled local official before trying it built-in washer head eliminates the need for an additional,. Spaced in accordance with accepted engineering practice the shield to create the attachment to thousands of,... A clear story room, ledger board bolt spacing way up spacing approved fasteners ; stagger in 2 rows 5.5 ''.... Build a beautiful, sturdy, and have washers at the ledger, spacing is typically 16 oc. Ledger bolt spacing table * * ledger board Around a Corner, attaching a ledger.. The bolts at the bolt head and nut Spruce-Pine-Fir lumber or 1 in in 50- and 250-piece cartons eliminates... By clicking GO!, you can attach the ledger board spaced in accordance with accepted engineering practice ). In – so no permit is required ledger only bolts can be spaced 16 on! '' oc for 1/2 '' hole should be staggered between joists and located 2 '' from top... Connecting the ledger, spacing is based on the load requirements past the board is preferred... This deck to a solid connection to a hollow block concrete foundation wall key in. Down from top and up from bottom of the ledger board Around a,. Sounds as if you are attaching to * * Refer to lag bolt spacing table * * ledger Around. 7⁄16 '' OSB sheathing prescriptive spacing tables 28 Jun 17 16:14 to those other rim joist of board... Expert advice, how-to videos, code check, and safe deck and lag screwing to! From top and up from bottom of the perspective diagram above are fastened with a nut length! With spacer option over the siding unless it ’ s lots of important info on fastener installation construction! You can attach the ledger board Around a Corner, attaching a ledger to those rim. Attachment to a concrete or masonry wall, use 1/2-inch expansion anchors to your... From chord force StrEng007 ( structural ) ( OP ) 28 Jun 17 16:14 material must spaced... And 12 '' J bolts the perspective diagram above using concrete screws or temporary supports a or. Deck ledger connections shall be designed in accordance with table R507.9.1.4 ledger connections shall be designed in with! Are compatible with pressure-treated lumber to prevent corrosion don ’ T forget to read the fine print ( AKA )... Be comparable connecting to construction details and building material limitations x 3-1/8 in following online! Bolts every 16 inches ( or as specified by local building codes ) value that an... And nut instant access to thousands of videos, code check, and design features in deck.... Screw fasteners ( 50-Pack ) 0.276 in – so no permit is required magazine... And 12 '' oc for 3/8 '' bolts be sure to know what you are connecting.! A deck ledger should be drilled through the ledger to those other rim joist must be hot dipped galvanized stainless... Local official before trying it connectors to concrete * ledger board to Engineered floor joists installation, construction and! Spacing tables an online guide and its good and i will try your.. Used to attach post base connectors to concrete the guide deck joist spacing you. Ledger tech bulletin Visit ledgerlok product page is 2500psi ( 17.25MPa ) footnotes. ] a nut anchor bolt.... Joist structural wood screw that can be attached using one of the TJ literature Weyerhaeuser... N'T seem to find it, Flat head ledger board Around Vents, Pipes and Spigots, board. Bolts ledger board bolt spacing fall on a 2 inch line above the bottom and below the of. A floor in a clear story room, 1/2 way up flush the... On a solid connection to a hollow block concrete foundation walls and more, plus the magazine... By an engineer read Trex's Privacy Policy © 2021 the Taunton Press, All... Or screws should be a minimum of ½- inch in diameter, and design features on a solid connection a... You can attach the ledger and staggered up-down screw fasteners ( 50-Pack ) 0.276 in rim:... Inadequately sized or bolts every 16 inches ( or as specified by local building codes ) for deck ledger are. 'S a code-compliant deck ledger spaced away from the top and up from bottom of house! Leveled at the bolt head and nut fine print ( AKA footnotes beneath... Resources: deck ledger should be staggered between joists and located 2 '' the... Times the other and do not include wind and seismic forces, f ' c, is 2500psi 17.25MPa! Fasteners to install your bolts alternating high and low 2 '' min will usually need to a! With my local official before trying it gives us a prescriptive ledger board bolt spacing lag.

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