Determine the outside dimensions of the framing for the deck and add ½" to 1" to that length. This will give you a ¼" to ½" of extra room to maneuver the ledger if needed. Determine the floor joists' location so that you will know exactly where to cut and remove the siding. You can figure this out by looking under the last row of siding.

In a ledger board application, a ½" x 4" lag bolt was tested to provide 180 lbs support of allowable shear load per screw. 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. Lag screws that hit wall plates or studs may not be comparable.

vertical vessel circular pattern anchor bolt design aci. design calculations for anchor bolt scribd. concrete anchor foundation bolt design calculations with. design of anchor bolts embedded in concrete masonry. dis tran take2 calculating anchor bolt loads. 9 1 / 7. "/>

05/08 · Traditionally, lag screws have been the most common method of attaching decks to buildings. 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. After that, a

A clearance hole for a 1/2-in. bolt should be between 17/32 in. and 9/16 in., slightly larger than the bolt itself. Drilling the hole with a 1⁄2-in. bit ups the risk of the ledger board splitting. Pressure-treated lumber is often still wet from the treating process, and as the board dries, it can crack along the bolt-hole line.

I am attaching a PT 2x6 ledger board to a CMU block wall. Blocks are hollow (I'm assuming) and once the ledger is attached, i will use joist 

LedgerLOK is a code-compliant structural wood screw engineered to fasten a deck ledger board to the rim joist of a house with no predrilling. Where to Buy, Product Info, Video, Documentation, Related Products, Where to Buy, No Pre-Drilling Required, Installs in a fraction of the time versus traditional bolts with fewer steps and less effort.

opposite direction as the force on the ledger, so the no-bolt zones are reversed: On a ledger, the bottom-bolt centerline can be no closer than 3⁄4 inch to the bottom; on a band joist, the

In a 2x12 ledger, the bottom bolt must be at least 7 1/2 inches from the top. Because the maximum vertical distance between bolts is 5 inches, the upper bolt can be no closer than 2 1/2 inches from the top, even though the "no-bolt zone" would appear to allow the bolt to be 1/2 inch higher than that. Allowable Band Joist Bolt Locations,

The D39 MDX Bolt has been developed to provide strata support in a wide variety of rock conditions (weak and competent), and in particular seismic rock conditions. This development is a progression on the successful MD Bolt being used in Australian mines since 2010. PDF Ds511 Rock Support Bolter. 3.

Bolt patterns will vary depending on joist length. Bolts should be staggered between joists and located 2" from the top and bottom of the ledger board. Temporarily support the ledger, Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports.

The maximum distance between the face of the ledger board and the face of the band board is 1”. Through-bolts. Through-bolts must have a diameter of 1/2 inch.

pattern and spaced as follows: The LedgerLOK Ledger Board Fastener has been designed specifically patterns from Figure 1 and Table 1.

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With the help of a friend, position the ledger against the flashing so the top edge is in line with its corresponding marking on the flashing. Tack the ledger board in place for now using a 2 ½” spiral nail. Do not pound the nail entirely. Check for level across the length of the ledger board. Mark the positions where the joists will go

anchor bolt spacing for ledger board. Last Post 15 Aug 08:00 AM by icfcontractor. 6 Replies. Sort: Prev Next: You are not authorized to post a reply. Author: Messages: mark3885 I always attach the floor with AB's and ledger board, and I always use 2-8" L anchor bolts every 16" if the floor is on 16" o/c, if it was 12" o/c I would go 12

ever, deck ledgers rely on bolts or screws when attaching the deck ledger to the house framing other 11 inches over, and the pattern re-.

The flat head installs flush to the ledger saving additional time and money. Plus, gain stronger bit engagement with the TORX ttap drive system. ACQ Approved & Code Compliant. Tested and supported by engineering data that conforms to the most current ICC standards. It is also approved for use in ACQ or treated lumber.

Lag screws or bolts shall be staggered from the top to the bottom along the horizontal run of the deck ledger in accordance with Figure R507. · Maximum 5 inches.

3) Multiple ledger plies should be fastened together to act as one unit independent of the WS ledger attachment screws. 4) Solid sawn ledger and rim board 

Attach rim joist to end of joists as shown in FIGURE 2 and FIGURE 4. post joist hanger optional overhang existing house wall ledger board rim