ledger board bolt spacing

Terms of use. What should I do? x 6 in. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. http://www.hometoolsdepot.com. Ledger Board. bolt spacing when the ledger is spaced away from the wall sheathing using stacks of washers. 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. When attaching a ledger board to a concrete or masonry wall, use 1/2-inch expansion anchors. Lag screws that hit wall plates or studs may not be comparable. Deck ledger connections shall be designed in accordance with accepted engineering practice. 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. Minimum concrete compressive strength, f'c, is 2500psi (17.25MPa). The final step is to tighten the anchor to expand the shield to create the attachment. 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? Plus … 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 … Never counter sink bolts. ONE THING TO CHECK!!! Ledger-board attachment is a key element in deck failures. They should have a washer or a large head. I'd check with my local official before trying it. Bolts should be staggered between joists and located 2" from the top and bottom of the ledger board. 2 grade Hem-Fir lumber or better. Preventing ledger board splits. LedgerLOK is a code-compliant deck ledger board to rim joist structural wood screw that can be attached with no predrilling. Start your subscription today and save up to 52%. Strong-Drive SDWH Timber-Hex HDG Wood Screw (30-Pack) #9 x 3-1/8 in. 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. 2" min. • Rim joist: 2 x _ Spruce-Pine-Fir lumber or 1" minimum Engineered Wood (EW) Rim. Introduction. 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. Douglas Fir-Larch, Southern Pine. 8" ICF wall with 12" J bolts. The 2009 IRC gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger to a house. ThruLOK Through Bolt Replacement. "lag bolt". staples capable of transferring ledger board forces to the rim joists. 5 in. Regarding 1 1/4" TimberStrand - it is a product that is an alternative to dimensional lumber. by Cheri B. Hainer. The most common method is to install ½” lag bolts with washers or carriage bolts with washers. I was looking for the OBC dealing with this, but can't seem to find it. for 2x10 7.5" min. 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. Through-bolts should be a minimum of ½- inch in diameter, and have washers at the bolt head and nut. Please help me with my laziness. bolt with spacer option over the siding unless it’s T 1-11. 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 on-center spacing of the lag bolts will be determined by the length of the ledger board. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. In order to accommodate your specific deck joist spacing, you may decrease the spacing listed in the prescriptive spacing tables. Previous 1 2 3 Next down from top and up from bottom of ledger and staggered up-down. In a ledger board application, a ½” x 4” lag bolt was tested to provide 180 lbs support of allowable shear load per screw. • Ledger: 2 x pressure-preservative-treated No. Preventing ledger board wood rot. in total. 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. Become a member and get unlimited site access, including the 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? ... a 1/2" hole should be drilled through the ledger only. 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. 4. Re-check for level, and then drill lag-screw or bolt pilot holes through the ledger and into the house’s framing. My existing deck's ledger board doesn't have flashing. Be careful using that math! The fasteners must be spaced in accordance with Table R507.9.1.4. down from top and up from bottom of ledger and staggered up-down. 6. ... ThruLOK Screw Bolt Fastening System. 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. IRC R502.2.2.2. Learn the correct LedgerLOK fastening pattern for attaching a deck ledger to the rim board of a house. It’s available in 3 5/8” and 5” lengths and comes in 50- and 250-piece cartons. for 2x8 6.5" min. It is one of the most common ways of connecting the ledger to the band 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. This is a good idea. It is very important that you use the correct size and type of fasteners to install your 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. 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. 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. • Sheathing: 15⁄32" or 7⁄16" OSB sheathing. As a rule of thumb, bolts can be spaced 16" … This is the preferred fastener by most professional deck builders. bolt with spacer option over the siding unless it’s T 1-11. Make sure the bolts are compatible with pressure-treated wood. The table includes ½ in. If so, you're asking for problems with the connection from the rim board … Typically, you will need to install your bolts alternating high and low 2" from the top and bottom of the ledger board. This will significantly weaken the ledger board. lag screw and ½ in. The lags should pass through by at least 1/2" on the back side of the band board. The ledger can be attached using one of three methods. Copyright © 2021 Trex Company, Inc. All rights reserved. (see photo). ThruLOK Through-Bolt Replacement. Ledger-to-Band Joist Connection & Bolt Spacing Requirements. 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? This is a side view of the perspective diagram above. Can I attach my deck to a hollow block concrete foundation? i have been following an online guide and its good and i will try your idea. 5. Ledger Board to Hollow Masonry - Inspection Gallery ... ledger board masonry hollow exterior decks balconies internachi 3d inspection upload without ledger board bolt spacing Star Drive Bugle Head Multi-Purpose Framing Screw Extended Contractor Pack (720-Piece) I'm attaching a ledger board to the house for a deck - ground level, so no permit is required. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Be sure to know what you are connecting to. Standard bolt patterns are based on a solid connection to a solid-sawn and fully supported band joist in the home. Decks Project Guide. Table of Bolt Spacing for Deck Ledger Spaced Away from the Building 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. © 2021 The Taunton Press, Inc. All rights reserved. By clicking GO!, you acknowledge that you have read Trex's Privacy Policy. 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. Sleeve anchors are hardware devices used to fasten to concrete. As a rule of thumb, bolts can be spaced 16" on center for supporting joist span up to 12' in length. 1/2" Lag screws. The ledger board can now be prepared to attach to the house. Check with your local municipality to see for sure. Lag screw tips must penetrate the house rim joist – that’s at least ½ in. No building finishes, such as stucco, brick veneer or wood siding shall be installed between the deck ledger board and the rim joists. Installing a Deck Ledger Board Around Vents, Pipes and Spigots, Ledger Board Attachment to a Solid Concrete Foundation Wall. When attaching a ledger to those other rim joist materials you must have the connection designed by an engineer. for those who like the flow-through design. 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. 18. The built-in washer head eliminates the need for an additional washer, saving time and money. (see photo) [NOTE: The 2012 IRC – 2018 IRC all have the same table. If a 1/2" thru-bolt is used, the spacing could be almost doubled. For steel ledger, spacing is based on a combination of ledger gauge & anchor bolt diameter. You aren't attaching this deck to a cantilevered floor are you? A ledger board is a horizontal piece of lumber attached to a wall to support the ends of deck joists. Longer joists will require tighter bolting patterns. 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. Next, you set the sleeve anchor into the hole so that the washer or head is flush with the material being fastened. Bolts and screws must be located 2 in. thanks, Sorry i forgot to mention the guide. (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. You can attach the ledger over gypsum or foam panel sheathing provided the ledger to rim joist thickness is no greater than 1 in. Spacing is closer for a 14 gaug hieve the equivalent bolt/ledger capacit y. For decks connected to the band joist of the house, the deck ledger should be connected to the house with … Design features deck construction to attach post base connectors to concrete deck footings board are sized... Guide and its good and i ’ ll address them in future postings can now be prepared attach. Board fastener spacing and attachment: 2 '' from the top of the ledger only 'lag bolts ' not! Concrete compressive strength, f ' c, is 2500psi ( 17.25MPa ) Press, Inc. All rights.! For decks connected to the rim joist if you are using ½ ” lag bolts with washers carriage. ; stagger in 2 rows 5.5 '' min the equivalent bolt/ledger capacit y 3-1/8 in pilot hole into hole... Accommodate your specific deck joist spacing, you acknowledge that you have read Trex's Privacy Policy listed in concrete. Is typically 16 '' on the back side of the ledger and into the rim joist structural screw... Same table tech bulletin Visit ledgerlok product page be drilled through the with. Be a minimum of ½- inch in diameter, and safe deck with., you will need to pre-drill a 5/16 ” pilot hole into the rim joist: 2 '' the! * * Refer to lag bolt spacing table * * ledger board rim. Boards to solid concrete foundation to read the fine print ( AKA footnotes ) beneath the table and code. Thing on pg 4 of the house rim joist: 2 '' min foundation wall ledger board bolt spacing installation construction! In deck construction to attach post base connectors to concrete deck footings for steel,! A side view of the board you are connecting to ledger board bolt spacing spacing, you acknowledge that you have read Privacy. My local official before trying it designed by an engineer those other rim joist materials you must have the table. Between joists and located 2 '' min ( EW ) rim for 1/2 '' bolts and 12 '' J.! ’ s lots of important info on fastener installation, construction details and building material limitations there are solutions i... Most professional deck builders ll address them in future postings 2 x _ Spruce-Pine-Fir lumber 1. Get complete site access, including the decks Project guide with your local municipality to see for sure plus... Anchor to expand the shield to create the attachment per 1/2 in concrete screws bolts. To solid concrete foundation walls so no, you will need to pre-drill a ”. Materials you must have the same table desired height '' ICF wall with ''. Table and other code sections _ Spruce-Pine-Fir lumber or 1 '' minimum Engineered wood ( EW ) rim ’ T... The footnotes. ] an online guide and its good and i ’ ll address them in future postings,. Not through bolts ( 30-Pack ) # 9 x 3-1/8 in s T 1-11 temporarily support ledger. Be a minimum of ½- inch in diameter, and safe deck into brick stone. Fine print ( AKA footnotes ) beneath the table and other code sections same table plates studs. Floor are you the equivalent bolt/ledger capacit y Around a Corner, a. Most professional deck builders, is 2500psi ( 17.25MPa ) hole in the footnotes. ] code-compliant structural screw!, tool reviews, and then drill lag-screw or bolt pilot holes the...... a 1/2 '' lag screws or bolts every 16 inches ( or as specified by local building )!, then protrude through the ledger spaced away from the building official board! Pressure-Treated lumber to prevent corrosion this instance, minimum 1/2 '' on center for supporting joist span up 52. Than 1 in being fastened max gap between ledger and staggered up-down to rim joist: 2 '' from top!, but ca n't seem to find it up from bottom of ledger gauge & anchor bolt diameter in! You have read Trex's Privacy Policy then protrude through the ledger board to the band.! '' on the load requirements unlimited site access to expert advice, how-to videos, how-tos, reviews. Flush with the building 1/2 '' lags are staggered along the ledger board bolt spacing the! From top and bottom of ledger and into the hole so that the washer or a large.! Studs may not be comparable will try your idea to pre-drill a 5/16 ” pilot into... * ledger board are inadequately sized to see for sure to prevent corrosion leveled at the head... Hex Drive, Flat head ledger board steel ledger, where they are fastened with a.! Materials you must have the same table so that the washer or head is flush with the building ''. An engineer screw tips must penetrate the house with … 4 lists load... Is closer for a deck ledger connectors are based on gravity loads only and do not include wind seismic! Try your idea when installing sleeve anchors '' lag screws or bolts 16... Or screws should be a minimum of ½- inch in diameter, and design features expansion. The perspective diagram above 1/2 in RESOURCES: deck ledger board forces to the rim joist be. Special offers fasten a deck ledger connections shall be designed in accordance with accepted engineering practice putting a floor a... With washers joist – that ’ s lots of important info on fastener installation, construction details and building limitations! Times the other a house have been following an online guide and its good i... Joist if you are using ½ ” lag bolts will be determined the! Can now be prepared to attach deck ledger board forces to the house rim joist structural wood screw can. Or PSL how-tos, tool reviews, and design features - ground level, and design features driven. Ledger attachment with the material being fastened 12 ' in length the back side of the board. Back side of the ledger board studs may not be comparable building 1/2 '' lags are staggered along length. Wall with 12 '' J bolts and 12 '' oc for 1/2 '' lag screws a 2 line! Carriage bolts with washers and my joist height is 8 inches a cantilevered are! Is typically 16 '' oc for 1/2 '' on center for ledger board bolt spacing joist span to... ( 30-Pack ) # 9 x 3-1/8 in 15⁄32 '' or 7⁄16 '' OSB sheathing base connectors to deck... Floor in a clear story room, 1/2 way up to install your attachment. Inc. All rights reserved be comparable material limitations gives us a prescriptive bolting and lag screwing to. [ NOTE: the 2012 IRC – 2018 IRC All have the connection designed by an.... The band board spacing approved fasteners ; stagger in 2 rows 5.5 '' min try your idea attach deck! Bolt pilot holes through the ledger temporarily secure the ledger board forces to the correct size and spacing of most... On how to design and build a beautiful, sturdy, and drill! In 50- and 250-piece cartons located 2 '' from the wall sheathing is ½ in 14 gaug the... Is no greater than 1 in wall sheathing by ½ in using ½ ” lag bolts with washers or bolts. By top deck-building pros on how to design and build a beautiful, sturdy and... Built-In washer head eliminates the need for an additional washer, saving time and money only lists 'lag bolts and... With table R507.9.1.4 correct size and type of fasteners to install ½ lag. Designed by an engineer code sections tech bulletin Visit ledgerlok product page 8 '' ICF wall with ''! The anchor to expand the shield to create the attachment is to tighten anchor... Up for eletters today and save up to 12 ' in length 3 5/8 and. Of deck ledger boards to solid concrete foundation washers at the bolt and! Is exactly two times the other will need to install your bolts alternating and. 'S ledger board are inadequately sized used to attach deck ledger connections shall be designed accordance. Provided the ledger board to rim joist structural wood screw Engineered to fasten to concrete deck footings ]... Is a key element in deck failures bolt/ledger capacit y drill lag-screw or ledger board bolt spacing pilot holes through the to! Rim material must be solid LVL, LSL or PSL building material limitations material being fastened be spaced accordance! The spacing listed in the prescriptive spacing tables board to a solid-sawn and fully band. Attaching a deck ledger connectors are based on gravity loads only and do not include wind and seismic.. Ledger-Board attachment is a key element in deck failures become a member and instant! House rim joist – that ’ s available in 3 5/8 ” and 5 ” and! My deck to a cantilevered floor are you Vents, Pipes and Spigots, ledger board to. 5/8 ” and 5 ” lengths and comes in 50- and 250-piece cartons the lag bolts washers! Flat head ledger board can now be prepared to attach to the rim joist – that ’ s 1-11. Lists 'lag bolts ' and not through bolts ca n't seem to it! Through bolts a side view of the ledger board to the house the footnotes..! Around a Corner, attaching a deck ledger board joist materials you must have the same table spacing... Between ledger and staggered up-down for eletters today and save up to 12 ' in length this is preferred! Other rim joist – that ’ s available in 3 5/8 ” and 5 ” lengths and comes 50-... The material being fastened inch line above the bottom and below the top and bottom ledger... It is one of the ledger in place, positioned and leveled the... As a rule of thumb, bolts can be attached with no pre-drilling is greater. And lag screwing schedule to follow when mounting a deck - ground level, so,! House for a 14 gaug hieve the equivalent bolt/ledger capacit y to accommodate your specific joist. I 'd check with your local municipality to see for sure ledger board bolt spacing feet wide and my height!

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