![]() ![]() If you try to buy joist hangers for 2x12 joists, you’ll find that the common 18-gauge hangers used for deck construction top out at the 2x10 size. In the instances I looked at, the load capacities for the shorter hangers exceeded the live, dead, and snow loads required for the deeper joists, provided the joists didn’t have large gaps between the ends and the ledger or beam. Keep in mind that the load capacity of the smaller hanger needs to be adequate to support the load on the joist. Usually, the hanger size is the same as the joist size, but you can use a hanger that is one dimensional size less than the joist depth-a 2圆 hanger can be used with a 2x8 joist, for instance. They can also be used to avoid conflicts with lateral load hardware. For example, a 2x8 joist hanger is about 6-5/8 inches tall. Joist hangers are sized by joist depth, and run about 1/2 inch shorter than the nominal size of the joist (you can size deck joists by referring to Table R507.6 in the 2018 IRC, which lists spans for deck joists sized from 2圆 to 2x12). Or, you can read this article, in which I’ll cover the basics. But hangers don’t come with printed installation instructions you need to search through a maze of technical notes, installation notes, load tables, product information, fastener information, and more to uncover everything you need to know in order to select and install joist hangers-and the joists that rest in them-properly and safely. If they aren’t sized correctly and installed properly with the right nails or screws, the deck won’t have the necessary load support, uplift capacity, and lateral rotation resistance. NOTE: The correct fasteners installed in the correct position must be used to achieve published load valuesJoist hangers are not the most visible part of a deck, but they are one of its most important components. Joist fasteners must be installed at an angle through the rafter or joist into the header to achieve the table loads.Can be installed using nails or Strong-Drive® SD Connector screws.For added versatility the fasteners are placed higher on the hanger allowing the bottom of the rafter to hang below the ridge beam (see "Max.For slopes greater than 45° up to 49° (14:12), allowable loads are 0.85 of table loads Accommodates roof pitches from 0:12 to 14:12.The open design and ability to field-adjust the slope makes the LRUZ ideal for both retrofit or new applications.The LRUZ offers comparable or better load capacity to other rafter hangers at a reduced cost while using fewer fasteners.The Strong-Tie LRU26Z reinforcing angle features a G185 ZMAX galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications of ASTM A153. ![]() The field-adjustable seat helps improve job efficiency by eliminating mismatched angles in the field and lead times associated with special orders. Used with solid-sawn rafters, the LRUZ’s unique design enables the hanger to be installed either before or after the rafter is in place. Simpson Strong-Tie LRU light rafter U hangers are an economic alternative for applications requiring a sloped hanger for rafter-to-ridge connections. General Purpose Concrete Diamond Blades. ![]()
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