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.
Roof ledger board bolts.
Douglas fir lvl no attachment is allowed to strand lumber syp lvl the mudsill i joists floor trusses or other materials.
Fastening to masonry walls.
Bolts and screws must be located 2 in.
Ledger to band joist connection bolt spacing requirements.
Determine how high it must be to provide an adequate slope to the roof.
Table of bolt spacing for deck ledger spaced away from the building.
X 9 in.
Locate a position for a header or ledger board.
As a rule of thumb bolts can be spaced 16 on center for supporting joist span up to 12 in length.
For installing a deck ledger structural screws such as ledgerloks which don t require pre drilling are so much easier to use than the lag screws and through bolts referenced in the irc.
Any one of these five ledger connection methods properly installed will give you a reliable long lasting deck that is secure.
This is a time consuming process and should be done while the house is being constructed to simplify the process and reduce costs.
Typically you will need to install your bolts alternating high and low 2 from the top and bottom of the ledger board.
Plus you need to double fasteners at ledger butts and ends.
Anchor a ledger to a masonry wall with expanding anchor bolts begin by marking a line across the wall for the ledger s top edge.
Down from top and up from bottom of ledger and staggered up down.
Place washers over the holes and screw in the 5 5 inch lag screws in the holes so that they go through the expansion anchors already in place.
Make it the full width of the porch or slightly wider depending on your porch design.
The roof top brackets wood ledger board and lag bolts are to be purchased locally by customer.
House rim joist must be minimum of 2x sawn lumber or 1 in.
Step 5 attach the ledger board to the wall.
Tighten all the screws in place.
The washers will provide protection for the board from the screw heads.
Ledgerlok replaces lag screws and through bolts and the.
Ledger wrap is an aluminum.
Put the ledger board in place once more.
Structural screws for ledgers by glenn mathewson q.
Find the wall studs or roof trusses that will have to support the ledger.
Ledgerlok is a code compliant deck ledger board to rim joist structural wood screw that can be attached with no predrilling.
Drill holes for the expanding anchors every 16 inches or as specified by local codes insert the anchors hold the ledger in place and tap it with a hammer to indent the anchor locations on its back face.
The ledger board is attached to the roof with 90 degree heavy duty stanley brackets the brackets need to be bent so the new ledger board is plumb.
