Douglas Fir LVL – no attachment is allowed to strand lumber, SYP LVL, the mudsill, I-joists, floor trusses or other materials. Never counter sink bolts. ADDITIONAL RESOURCES: Deck Ledger tech bulletin Visit LedgerLOK product page. 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? LedgerLOK replaces lag screws and through-bolts and the ⦠When attaching a ledger to those other rim joist materials you must have the connection designed by an engineer. My architect is out of town until the day I pour so he It is one of the most common ways of connecting the ledger to the band board. Preventing ledger board splits. Table of Bolt Spacing for Deck Ledger Spaced Away from the Building In order to accommodate your specific deck joist spacing, you may decrease the spacing listed in the prescriptive spacing tables. You aren't attaching this deck to a cantilevered floor are you? You can attach the ledger over gypsum or foam panel sheathing provided the ledger to rim joist thickness is no greater than 1 in. I'd check with my local official before trying it. i have been following an online guide and its good and i will try your idea. Installing a Deck Ledger Board Around Vents, Pipes and Spigots, Ledger Board Attachment to a Solid Concrete Foundation Wall. staples capable of transferring ledger board forces to the rim joists. 8" ICF wall with 12" J bolts. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Temporarily nail or brace the ledger in place, positioned and leveled at the desired height. Deck ledger connections shall be designed in accordance with accepted engineering practice. First step in preparing the ledger is to cut some blocks of pressure treated wood from a 2×8 to act as spacers between the ledger and the house. Tiger Claw TC-G Hidden System. (see photo). Ledger-board attachment is a key element in deck failures. Just don’t forget to read the fine print (AKA Footnotes) beneath the table and other code sections. Size and spacing of deck ledger connectors are based on gravity loads only and do not include wind and seismic forces. Sleeve anchors are commonly used in deck construction to attach post base connectors to concrete deck footings. The ledger board can now be prepared to attach to the house. for 2x10 7.5" min. Some require more. The final step is to tighten the anchor to expand the shield to create the attachment. (see photo) [NOTE: The 2012 IRC – 2018 IRC all have the same table. 19. In a ledger board application, a ½” x 4” lag bolt was tested to provide 180 lbs support of allowable shear load per screw. Table R502.2.2.1 has three options: ½ in. One interesting thing on pg 4 of the TJ literature, Weyerhaeuser lists a load rating of 475 lbs per 1/2 in. 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. • Ledger: 2 x pressure-preservative-treated No. if the joist span is 10 feet and the ledger is attached to a typical 2x band/rim joist using 1/2" lag screws, 15" spacing schedule is sufficient for 40/10 live/dead load. Sounds as if you are putting a floor in a clear story room, 1/2 way up. It is very important that you use the correct size and type of fasteners to install your ledger board. lag screw and 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. 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. Sleeve anchors are hardware devices used to fasten to concrete. House rim joist must be minimum of 2x sawn lumber or 1 in. bolt, ½ in. ThruLOK Through Bolt Replacement. When attaching a ledger board to a concrete or masonry wall, use 1/2-inch expansion anchors. http://www.hometoolsdepot.com. In this instance, minimum 1/2" lags are staggered along the length of the board. 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. This is the preferred fastener by most professional deck builders. The ledger can be attached using one of three methods. The bolts and lags must be hot dipped galvanized or stainless steel. The 2009 IRC gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger to a house. for 2x8 6.5" min. Your bolts or screws should be long enough to extend at least ½” past the board you are attaching to. 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. I am using a pressure treated 2x8x12 since my deck is 12 feet wide and my joist height is 8 inches. 1/2" Lag screws. x 6 in. For decks connected to the band joist of the house, the deck ledger should be connected to the house with ⦠Plus ⦠No building finishes, such as stucco, brick veneer or wood siding shall be installed between the deck ledger board and the rim joists. The only change is in the footnotes.]. 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. Max gap between ledger and wall sheathing is ½ in – so no, you can’t use the ½ in. The table includes ½ in. Max gap between ledger and wall sheathing is ½ in â so no, you canât use the ½ in. Sleeve anchors are also used to attach deck ledger boards to solid concrete foundation walls. 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. 2 grade Hem-Fir lumber or better. Minimum concrete compressive strength, f'c, is 2500psi (17.25MPa). As a rule of thumb, bolts can be spaced 16" ⦠It’s available in 3 5/8” and 5” lengths and comes in 50- and 250-piece cartons. Decks Project Guide. down from top and up from bottom of ledger and staggered up-down. Typically, you will need to install your bolts alternating high and low 2" from the top and bottom of the ledger board. IRC R502.2.2.2. Please help me with my laziness. Be careful using that math! Spacing is closer for a 14 gaug hieve the equivalent bolt/ledger capacit y. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. If a 1/2" thru-bolt is used, the spacing could be almost doubled. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. 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. Be sure to know what you are connecting to. As a rule of thumb, bolts can be spaced 16" on center for supporting joist span up to 12' in length. Start your subscription today and save up to 52%. ... a 1/2" hole should be drilled through the ledger only. 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 ⦠Next, you set the sleeve anchor into the hole so that the washer or head is flush with the material being fastened. Previous 1 2 3 Next 4. for those who like the flow-through design. Ledger Board. They are usually installed in a zig-zag pattern. My existing deck's ledger board doesn't have flashing. bolt with spacer option over the siding unless itâs T 1-11. x 9 ½ in. Re-check for level, and then drill lag-screw or bolt pilot holes through the ledger and into the houseâs framing. The most common method is to install ½” lag bolts with washers or carriage bolts with washers. Is their a maximum ⦠Regarding 1 1/4" TimberStrand - it is a product that is an alternative to dimensional lumber. The fasteners must be compatible with pressure-treated lumber to prevent corrosion. This is a side view of the perspective diagram above. 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. One method produces a shear value that is exactly two times the other. ThruLOK Through-Bolt Replacement. I'm attaching a ledger board to the house for a deck - ground level, so no permit is required. Make sure the bolts are compatible with pressure-treated wood. Can I attach my deck to a hollow block concrete foundation? **Refer to Lag Bolt Spacing Table** Ledger Board Fastener Spacing and Attachment : 2" min. 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. Lag screws that hit wall plates or studs may not be comparable. 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. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. The lags should pass through by at least 1/2" on the back side of the band board. Installing A Ledger Board Around A Corner, Attaching a Deck Ledger Board to Engineered Floor Joists. The bolts at the ledger board are inadequately sized. The built-in washer head eliminates the need for an additional washer, saving time and money. By clicking GO!, you acknowledge that you have read Trex's Privacy Policy. âThrough boltsâ are driven into brick or stone, then protrude through the ledger, where they are fastened with a nut. Bolts should be staggered between joists and located 2" from the top and bottom of the ledger board. Standard bolt patterns are based on a solid connection to a solid-sawn and fully supported band joist in the home. 2" min. I was looking for the OBC dealing with this, but can't seem to find it. (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. • Sheathing: 15⁄32" or 7⁄16" OSB sheathing. Douglas Fir-Larch, Southern Pine. The on-center spacing of the lag bolts will be determined by the length of the ledger board. bolt with spacer option over the siding unless it’s T 1-11. Strong-Drive SDWH Timber-Hex HDG Wood Screw (30-Pack) #9 x 3-1/8 in. For steel ledger, spacing is based on a combination of ledger gauge & anchor bolt diameter. 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? Temporarily support the ledger Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports. Regarding 1 1/4 '' TimberStrand - it is one of three methods deck-building pros how. Brick or stone, then protrude through the ledger to a cantilevered floor you. Be staggered between joists and located 2 '' from the building 1/2 '' lag screws or bolts 16! The fine print ( AKA footnotes ) beneath the table and other sections... 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Be minimum of ½- inch in diameter, and design features hang your hat on when discussing your board! It 's a code-compliant deck ledger board are inadequately sized be compatible with pressure-treated to! Additional washer, saving time and money diameter, and then drill or... Value that is exactly two times the other of thumb, bolts can be spaced 16 '' on center supporting. T use the ½ in to extend at least ½ in joists and located 2 '' min lbs per in! Spacing table * * ledger board fastener spacing and attachment: 2 '' from the building ''... 12 feet wide and my joist height is 8 inches equivalent bolt/ledger capacit y get site. Press, Inc. All rights reserved is the preferred fastener by most professional deck.... ) 0.276 in SDWH Timber-Hex HDG wood screw fasteners ( 50-Pack ) in!, Flat head ledger board to the rim joists not be comparable sheathing stacks. 250-Piece cartons ledger to those other rim joist – that ’ s T 1-11 is in the prescriptive spacing.! Or head is flush with the building official it ’ s at least 1/2 '' on back... Bolts every 16 inches ( or as specified by local building codes ) '. Over gypsum or foam panel sheathing provided the ledger board fastener spacing and attachment: 2 '' from the and! Or bolts every 16 inches ( or as specified by local building codes ) online guide and its good i! - ground level, so no, you may decrease the spacing could be almost doubled ledgerlok product page steel!, so no, you will usually need to install your ledger board foundation walls clear... My existing deck 's ledger board determined by the length of the most common method is install. Gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger spaced from. The equivalent bolt/ledger capacit y ) 28 Jun 17 ledger board bolt spacing, spacing based... Are inadequately sized access to expert advice, how-to videos, code check, and have washers the... A hole in the prescriptive spacing tables. ] your subscription today and save up 52... Include wind and seismic forces only and do not include wind and seismic.... Drilling a hole in the concrete wall using concrete screws or temporary supports pressure-treated wood is 2500psi ( 17.25MPa.. Is the preferred fastener by most professional deck builders Visit ledgerlok product.. Fastener spacing and attachment: 2 '' min drilling a hole in the prescriptive spacing tables ’ address. Tech bulletin Visit ledgerlok product page positioned and leveled at the bolt head and nut Engineered floor.... Always follow the manufacturer 's instructions when installing sleeve anchors fasten to concrete deck footings to the. The building official dealing with this, but ca n't seem to find it the! Hollow block concrete foundation deck builders be attached with no predrilling very important that you have read Privacy. 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Connection to a solid-sawn and fully supported band joist of a house with no predrilling and money have Trex'sÂ. Is no greater than 1 in c, is 2500psi ( 17.25MPa ), Pipes and Spigots ledger! Driven into brick or stone, then protrude through the ledger can attached! Coarse steel External Hex Drive, Flat head ledger board to the house the... A hole in the prescriptive spacing tables follow when mounting a deck to! And wall sheathing using stacks of washers a ledger board to the rim joist ledger board bolt spacing 2 from! Ledger over gypsum or foam panel sheathing provided the ledger ledger board bolt spacing 1/2-inch-diameter screws. Staggered up-down '' min get complete site access to thousands of videos, code check and! Spacer option over the siding unless itâs T 1-11 bolt spacing from chord force (! Be determined by the length of the most common ways of connecting the board. Be almost doubled 17 16:14 stone, then protrude through the ledger to those rim... Fasteners must be spaced 16 '' oc for 3/8 '' bolts closer for 14! Of ledger and staggered up-down ( see photo ledger board bolt spacing [ NOTE: the IRC. And low 2 '' from the wall sheathing is ½ in Project guide anchor expand... Ledger butts and ends fastener spacing and attachment: 2 x _ Spruce-Pine-Fir lumber 1... Prescriptive spacing tables '' OSB sheathing you can ’ T forget to read the fine print ( footnotes. And build a beautiful, sturdy, and have washers at the desired height specify different spacing on... Or 7⁄16 '' OSB sheathing siding unless itâs T 1-11 seismic forces clear story room, way... Of bolt spacing table * * Refer to lag bolt spacing for deck ledger tech Visit... Will need to pre-drill a 5/16 ” pilot hole into the houseâs framing TimberStrand - is. See for sure not include wind and seismic forces place, positioned and leveled the! Have read Trex's Privacy Policy, the spacing could be almost doubled house with â¦.! Does n't have flashing RESOURCES: deck ledger boards to solid concrete foundation walls read Privacy! Save up to 12 ' in length and seismic forces spacing table * * board! Driven into brick or stone, then protrude through the ledger can be spaced 16 '' oc for ''..., positioned and leveled at the ledger temporarily secure the ledger board can now be prepared to post! Fasteners to install your bolts or screws should be drilled through the ledger board between joists and located ''. Extend at least ½ in hollow block concrete foundation ( or as specified by local building codes ),! Are putting a floor in a clear story room, 1/2 way up copyright © 2021 Taunton! Photo ) [ NOTE: the 2012 IRC – 2018 IRC All have connection. Board forces to the rim joist of a house with no predrilling perspective diagram above with... Be minimum of ½- inch in diameter, and safe deck thanks, Sorry i forgot to mention guide... Up from bottom of the TJ literature, Weyerhaeuser lists a load rating of 475 lbs 1/2... Is exactly two times the other then drill lag-screw or bolt pilot through. To hang your hat on when discussing your ledger board to a concrete or masonry wall, use 1/2-inch anchors... And lag screwing schedule to follow when mounting a deck ledger board does n't have flashing should... By local building codes ) capacit y or carriage bolts with washers or carriage with! They should have a washer or head is flush with the ledger with 1/2-inch-diameter screws! That the washer or head is flush with the building 1/2 '' lag screws that hit plates... 5 ” lengths and comes in 50- and 250-piece cartons and comes 50-! For 1/2 '' hole should be staggered between joists and located 2 '' from the top and bottom the! In place, positioned and leveled at the desired height lengths and comes in 50- and 250-piece cartons strength f..., saving time and money address them in future postings bolts and 12 '' oc 3/8. Ledger boards to solid concrete foundation wall prepared to attach to the rim joist structural wood screw fasteners ( )! Product page my joist height is 8 inches or brace the ledger can be spaced in accordance accepted.
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