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.

i wasn't thinking that I need drop the ledger 2 or 3 inches so that there would be space for deck board and 1 inch step up to the door.

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 

hydraulic crusher bucket lc1d80 datasheet apron feeder pans lifting eye bolt failure apron feeder parts ~ Страница 747 из 774 ~ INDUSTRA Group. Запасная часть 803379 PIN SI539 используемая в технике LT110. № по каталогу: 803379. Доставка по всему Казахстану

07/18 · The bolts or lags must be placed along the ledger in two rows—one row along the top and one along the bottom—with the fasteners staggered between the two rows at the spacing indicated by the IRC table. For example, on a deck with a joist span of 15 feet, the lag screws are spaced 11 inches apart. To start the pattern, the first lag is

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.

The size and spacing of the bolts should be spelled out in your building code. If they are not, use I/2-inch bolts every 14 inches on decks with joist spans of 

09/07 · Attached decks, or ledger decks, are fastened to a building’s wall using a piece of naturally decay-resistant lumber, pressure-treated dimensional lumber, or engineered lumber

2022/04/11 · If you're that worried though, a quick hand calc using multispan beam tables is easy enough. For a uniform load and a 7 span beam, worst case moment will be wl 2 * (-.106) and

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

Position the ledger against the wall and mark the anchor positions through the hole onto the wall. Drill through the brick veneer with a ½ inch masonry bit in a hammer drill, until you reach the wood frame behind. Do not drill into the wood. Reposition the ledger board and fit a ½" lag bolt, 10" long into each hole and drive them in