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Galvanized Hanger Strap, Bagged - 3/4-Inch x 10-Feet, 6 Pcs Tie Plate Bracket Flat Length 8", Carbon Steel Width 3" Metal Joint Thickness 2mm Flat Mending Repair Plate Corner Brace Heavy Duty Strap for Trusses Wood Timber, Light Gauge Steel Framing, Simpson Strong Tie LU28-25PK - 2X8 20 Gauge Face Mount Joist Hangers - Quantity 25, Simpson Strong-tie H2.5A-25PK - 18-Gauge Galvanized Hurricane Tie 25ct (25pk), 10 PCS Flat Tee Mending Plate, T Flat Repair Tie Plate, Strong T Strap Steel Right Angle Bracket, Thickness 2mm, Metal Corner Brace for Wood, Furniture, Timber Connector(Silver), 4Pcs Steel 14-Gauge Hurricane Tie , Heavy Duty Hot Dip Galvanized Joist Hangers Fit 4X Truss to Rafter Connector , Thickness 2 mm for Roofing Trusses Wood Timber Connectors, vikofan 4PCS Joist Hangers,4x6" Black Joist Hanger Fit for Beam/Swing, Cord strapping rolls for heavy packages securing, Emergency Medical Backboard Spine Board Straps. Those joists are so cut up that there's really nothing left of them. x 2 in. What building codes allow for notch cuts in Floor Joists (without Joist Reinforcer) 1. Well, at least not on the joist holes. The straps extended the entire length of the 16-foot joists, which were supported so that there was 14 feet of span. Press the space key then arrow keys to make a selection. The DP24 provides the solution with heavy duty steel and structual fasteners that more than make up for the lost support. I've attached before and after pictures (think you said you would like to see them). The numbers they calculated also appear way off.Steel has a modulus of elasticity mush higher than wood.The normal calculation is to convert the cross section of the steel to an equivalent wood section based on the ratio of modulus. Allowable TJI Joist Rafter End Cut. Home; About Us; Code-Compliant Repair and Protection Guide. Adding metal to the height (side) of the joist creates a quasi flitch beam, the problem that occurs is preventing buckling of the metal. The problem is with the approach. 4. I have to assume that either the nails started to shear or pull out just from tension from inception of the applied pressure (which was their observed condition at joist failure) or the joist moved in some three-dimensional way (out of plane) as it sagged, putting the steel strip in torsion (and helping pull the nails). What if the flange of a TJI Joist is loose from the web? Joist Straps. The fastening system works here because the fasteners are put in a tensile load, and very little at that since the steel does not buckle. In this free webinar series we dive into some very important considerations including the latest industry standards, material properties and key governing limits when designing with FRP. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. This is a very old method of reinforcing floor joists. Thankfully the existing rim joist was an 8x8 beam. Scabbing is a simple and affordable yet effective joist reinforcement method. Simpson Strong-Tie. Assuming the joists are in good condition, the solution to both sagging and bounciness problems is to reinforce the floor. It's a great product!!!! Skyline Joist Reinforcer solutions are strongest and Reinforcers made for routing plumbing, wiring, and HVAC right through floor joists. 20-Gauge Galvanized Tie Plate, PGT2 12-Gauge ZMAX Galvanized Pipe Grip Tie for 2 in. You take a piece of lumber or plywood of appropriate size and affix it permanently to a joist at the precise site of concern. The nails are put in a shear loading, the wood is not stiff enough, and metal just slides on the surface of the wood and never gets put into a tensile load. Reduce where other loads govern. PrivacyPolicy. Installation Instructions and Eng Report. ), I probably have the most serious type of mass-produced roof trusses, and the steel components are all attached to the SIDES (BOTH SIDES) of the 2x6 and 2x4 lumber components, none to the bottoms/edges FWIW. Working in teams of two, each carpenter begins by laying out an end of the room at 16 inches on-center. white satin shirt dress; 5400 seawall blvd, galveston, tx 77551; marquee flooring hire; readerest shark tank deal;. Certainly screws as you described in one of the other threads on this subject would help overcome this. SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouseS. Like you said, I handed him the Intertech Report. This is the last video in our th. Side Note: Being in a High-Velocity Hurricane Zone (HVHZ), and having a roofing system designed to hold concrete tiles which weigh 940-1080 lbs./square(! Joist struts and hangers, frame cramps and bent straps would all be used when building houses or similar buildings to support joists, windows and flooring. In-progress photo of the pier and beam repairs along the stem wall. 1. Secure the plywood using several screws. Copyright 2022 Simpson Strong-Tie Company, Inc. 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This style of framing is not correct for this type of structure. PS: DO they drive the wedges with a hydraulic jack, or just a BFHammer? Outdoor Accents Mission 11-1/4-in 12-Gauge Powder-coated Steel Strap Wood To Wood. 415 Elm Ave SWRoanoke VA 24016540-589-9669 dan@joistrepair.com, Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device, Same day shipping on orders placed Mon-Fri before 3pm. The fasteners are under practically no load as long as the steel does not buckle, and of course it will not under such small deflections. I saw a report once that showed good results using powder actuated tools to drive nails through the flitch and clinched over.Like any other use of powder actuated tools getting sufficient impact force to drive, without over-driving, the fastener is an issue. We Recommend Home Hacks & Answers This can cause it to rub against a popped nail. Yours truly, S. Lucas Valdes, PEME, Cal Poly, SLO, 1984. Simpson Strong-Tie and Structural Technologies are leaders in structural solutions products, technology and services that help people design, build and repair structures to make them stronger and last longer. for pricing and availability. Simpson Strong-Tie. These innovative products are the result of more than 40 years of laboratory development, field study and contractor input and have passed the rigorous performance and quality assurance testing you have come to expect from Simpson Strong-Tie. It's not necessary to transfer the entire strength of the steel strap to the wood joist; it only needs to be stiffened enough to reduce deflection and "bounce" to a more comfortable level. So when it comes to Joist Repair and Reinforcement, whether the issue is massively overcut plumbing, electrical holes or notches, or if you just want to route electrical and plumbing through the joists to keep it up and out of the way, we're the leading experts. You need to transfer a portion of the load to the steel and fixizin describes a good way to do it. Intuitively, pre-stressing *seems* like the way to get the most "balanced" strength out of both materials yes/no? Our product provides an affordable, alternative solution to sistering the joist in order to restore the integrity of the joist and promote safety. To resist this horizontal outward thrust, the International Residential Code calls for each pair of rafters to be securely connected to each other by a continuous ceiling joist, and for a structural ridge beam to be installed for roofs with a slope of less than 3:12 (see illustration below). Notch size is 6" wide and 5.25" deep, allowing for the custom installation of plumbing, electrical, or other utilities. Repairs Bowing Foundation Walls. http://www.taunton.com/finehomebuilding/PDF/Free/021184090.pdf, Chimney brick repair and gas insert conversion. Burnt Hills, NY 12027 The DP24 will repair a notch up to 6" wide. The taller the piece of steel, the greater the area moment, and the more it will resist bending ONLY if it is kept from buckling. Steel strap 3.5 inches wide and only 0.095 inches thick has an area moment of only 0.338 inches cubed, BUT steel has a modulus of around 200. What is the top-selling product within Metal Straps? Vinyl window grille insert (bar) missing - does it matter. The better approach would be to install steel on the SIDES of the joist, oriented vertically. Please contact us directly if you have any concerns if this product is the correct solution for you.**. I will definitely refer local contractor's in my area. Conectores para la construccin con madera 20212023. This ensures your floor is secured while the damaged sill is removed and replaced. We showed them to the plumbers; they had never seen them before, and were very interested. Simpson Strong-Tie Joist Adjustable Height Strap Hanger 440 x 150mm (H x W) is a non-welded joist hanger for supporting timber connections. Solution: The lateral connection joins a deck joist to a joist inside the house. Feel free to call, text, or email 24/7 customer service if you have questions. If the fasteners are sized and placed properly the steel strap works quite well. Pros Cons; Cost to sister floor joists: $100 - $300 per joist: Cost to replace floor joists: $6,000 - $10,000+ The Simpson Strong-Tie CI family of crack repair products has a solution for almost every job. Tack a beam under the sagging joists. The DP34 Deep Notch Repair Kit restores the strength of Floor Joists resulting from very deep notch cuts from the bottom of the Joist up. I wonder if using angle (attached only at the bottom edge of the joist) instead of strip would help keep the screws in pure shear. The difference in bottom chord length is very much measurable. This Old House general contractor Tom Silva helps a homeowner repair a cracked floor joist. Joist Reinforcers from Skyline Joist Repair are a great example of the creative, problem solving products we specialize in. Strapping tighteners absolutely exist. That wasn't evident in the results. Manufactured from galvanized steel or strong steel, joist straps secure the two sides of timber beams. Basement Wall Strap. 27. So, if you use the formula for simple deflection, it turns out that steel that is only 0.095 inches thick and 3.5 inches wide is just as stiff as a wood that is the same height, but 2 inches thick. Retirement in this Kitchen - Your Opinion, Suggestions? - Terry Evinger, Bothel, WA, "The joist reinforcers worked great! Notches are only allowed in the first 1/3 from each end of the Joist.2. Ties masonry to masonry for structural (load bearing) & non-structural intersecting CMU walls. Standard (IBC) Size: 16 gauge - 1/2 sq x 6 x 14 Other sizes available - Call 1-800-659-4731 or sales@masonpro.com Finish: Hot Dip Product Data Sheet SDS Hot Dip LEED Purchase Online Intersecting CMU Walls (Flange Action - Shear Transfer): Z-Strap Peir and beam foundation repair method #1: Nick and company showed up on day 1 with a truckload of 20 ton jacks, concrete columns, 4"x6" beams, and 2"x6" lumber for sistering floor joists and replacing the stem wall, replacing sill plates and end joists as needed. The rim joist, now free floating, was all that was left to support the balloon-framed exterior wall, which had begun to slowly slide off the crumbling foundation. The DP30 provides the solution with heavy duty steel and structual fasteners that more than make up for the lost support. Our patented Joist Reinforcers are just the ticket when it comes to running utilities through wood joists while maintaining code compliance. 11-Gauge Galvanized Heavy Tension Tie, 2 in. We strap the ceilings after all ceiling and bearing-wall framing is finished. Prevention: Do not lap strapping over the joist flanges. The top-selling product within Metal Straps is the Simpson Strong-Tie H2.5A 18-Gauge ZMAX Galvanized Hurricane Tie. If you find mildew, mold or water damage on your joists, call a plumber to find and repair any leaks you have before attempting a joist repair. Sorry to bring my engineering curiosity to the tail end of this discussion, but wouldn't ANY scheme of cladding (for lack of better term) steel onto existing wood joists have to include FIRST UNloading (i.e. The concrete repair, protection and strengthening solutions developed by Simpson Strong-Tie are the result of over 40 years of laboratory development, field study and collaboration with professional contractors. Any load on the gable roof above, i.e. Choosing a selection results in a full page refresh. At times when this isn't possible, shorter pieces are used instead (this is sometimes referred to as scabbing). Start by cutting out a small 1-2 in (2.5-5.1 cm) section of the floor joist with a reciprocating saw. Limit the length of notches to 1/3 of the joist's depth. The DP34 works for notches up to 16" wide. The DP34 has been tested and found suitable for tension repairs where the notch cut is from the bottom of the joist up. Joist Reinforcers from Skyline Joist Repair are a great example of the creative, problem solving products we specialize in. (518) 280-3190 Galvanized Predeflected Holdown with Strong-Drive SDS Screws, TP 1-13/16 in. I wonder what they measure for flitch beams?They will fail with oversize holes also. The strap is also able to restore the full strength of a drilled or otherwise similarly damage floor joist. The key is the steel will not help if the load is already being carried by the wood. Call us at 540-589-9669. Our reinforcement grids are made from carbon fiber or glass fibers. If the notch you need to repair is wider, check out theDP30 for notches up to 12" wide. Shop products from small business brands sold in Amazons store. Press the space key then arrow keys to make a selection. The inferred conclusion was that the performace was well below that expected from composite action. Click Hereto open chart to determine what size strap is needed. Notch width cannot exceed 1/3rd of the depth of the Joist.With a Joist Reinforcer1. The DP24 Deep Notch Repair Kit restores the strength of Floor Joists resulting from very deep notch cuts from the bottom of the Joist up. Then use pry bars and your reciprocating saw to pry and cut the floor joist away from the subfloor. The steel straps were 1.5-inch by 1/8-inch, and were nailed to the joists with 16p nails 6-inches on center. You can scab one or both sides of a joist, based on the reinforcement requirement. The joists are above the second floor (the new toilet is on the third floor). Maximum gap between wood members is 4 1/2". im curious to hear brickeyee's response to this comment!!!!!!! When the entire room is laid out, we snap chalk lines on the ceiling to ensure a straight and clean installation. Usually, the new piece of lumber spans the length of the old one. However, while the measured moment of inertia for the unreinforced joists was 300.4 inches^4, very close to the calculated value, that for the steel strap reinforced joists was only 324.4 inches^4, a very modest increase for a lot of work. Each of these products have passed the performance and quality assurance protocols that are expected of Simpson Strong-Tie, and have been selected to address the unique challenges of Commercial Retrofit, Bridge and Marine and Water/Wastewater projects. Check out the DP24 for notches up to 6" wide. 4. To repair floor joists, the damaged joist is sistered together with a new piece of wood. Notches at the end of the joist should be no deeper than 1/4 the depth. The DP30 will repair a notch up to 16" wide. Our product provides an affordable, alternative solution to sistering the joist in order to restore the integrity of the joist and promote safety. The 2x8 DNR Joist Notch Repair Kit (Patent Pending) is a structural steel plate designed to restore the strength of Floor Joists that have been compromised due to over cut notches either at the top or bottom of the Joist. Just kidding, it's all signed off now!". Slide the bolts through the holes, put a washer and nut on the threaded end and tighten each nut with a wrench . It should be placed at eight-foot intervals between any floor joists 2x10 or longer. Now you can build roads that are stronger and more economical. Skyline Joist Reinforcer solutions are strongest and Reinforcers made for routing plumbing, wiring, and HVAC right through floor joists. The Joist Repair Strap is designed to repair notched, drilled or damaged floor joists without needing to remove any plumbing/wiring which may go through the joist. To repair joist ends or replace sections call: 01626 872886 Joist End Repair Plates are supplied as pairs of galvanized steel plates, pre-drilled, to be fixed with Coach Screws (included). H2.5A 18-Gauge ZMAX Galvanized Hurricane Tie, H1 18-Gauge ZMAX Galvanized Hurricane Tie, HDU 8-11/16 in. Instead of just waiting for these floor joist problems to become unmissable in your home, talk to a JES expert about scheduling a free inspection to help with your problems. respondent "brickeyee" provided considerable information on the approach of adding steel strapping to the underneath of the joist. This conclusion is supported by the deflection vs. load curves that were published. The average price for Metal Straps ranges from $10 to $400. He signed off with no issues. to open chart to determine what size strap is needed. Connect strapping to a filler block that has been securely attached to the TJI joist web (Figure 7). Learn how to safely install ledgers-the primary connection between deck and house-plus beams, joists, guardrail posts, and stairs, in this 5-part deck-building video series. In the thread on this forum "Reinforceing floor " started by "Galroc,", http://ths.gardenweb.com/forums/load/repair/msg0915531723856.html. Insert and tighten a 3/8 bolt. Fastener quantities are for a single strap. The problem is that, in practice, joining the steel intimately to the wood is not really doable, no matter how many nails you used. Ideal for new construction or resurfacing, Simpson Strong-Tie asphalt reinforcement grids are tested and proven to extend the service life of roads, highways and other heavy-use areas. The CTS218 is designed to repair wood members such as top plates, studs and trusses, and it handles both tension and compression loads. Clamp the two boards together and drill holes through both for long 1/2-inch bolts. Floor Squeaks Most floor squeaks occur because either the subfloor or finished floor is loose. snow, pushes down on the roof. It would also induce/force one to use a NON-slip fastening method. Ideally, the projector's projection (sorry) into the ceiling space should be boxed closely, meaning only cut out enough of the joist for the 30" required for the projector plus the two headers, and add the cut section of the joist back between the headers (in front of or behind the PJ, so the 48" becomes 34") to provide better floor support. a day until they're level. Be the first to know about new collections and exclusive offers. Provides Attic Access With Limited Damage to Rafters. Ceiling Joists Deeply cut floor joists which leave only a small section of wood for support are a difficult problem to solve. Repair: We will continue to expand upon this line of repair, protection and strengthening products and provide our customers with industry leading jobsite, technical and customer support. Please download the engineering report for additional details. Joist Repair/Notched Repair. Jiffy Timber Joist Hangers Decking Lofts Roofing Zinc Packs - Size 41x100x75x2mm - Pack of 10. I would like to see these guys try and make a flitch beam. In addition, the carbon fiber grid is easily milled and recycled, making it reusable and highly sustainable. Repairs Cut, Notched, or Damaged Floor Joists. To do this, a contractor will install temporary jacks to hold up and even potentially lift the floor joists. Fastening the steel securely to the sides of the wood will keep the steel from buckling, and thereby increase the stiffness of the joist by an amount equivalent toe the area moment of the steel multiplied by the modulus of elasticity of steel, divided by the same for wood. PrivacyPolicy. The DP34 has been tested and found suitable for tension repairs where the notch cut is from the bottom of the joist up. The Joist Repair Strap is designed to repair notched, drilled or damaged floor joists without needing to remove any plumbing/wiring which may go through the joist. Joist straps are lateral restraint straps used at the floor, flat roof member levels, and in pitched roofs at ceiling joist levels. Items that are suspended from TJI joists may rub against the joist flange, resulting in a squeak. Call us at 540-589-9669. Attic Hatch Bulkhead. 333 Kingsley Road, Burnt Hills, NY 12027 (518) 280-3190 admin@nolan-engineering.com. They are flexible and pre-impregnated with bitumen to assist the installation and ensure perfect bonding between layers of asphalt. [4] Copyright 2022 Simpson Strong-Tie Company, Inc. A catalog including new product information as well as any applicable specification and installation instructions for wood-to-wood and wood-to-concrete structural connectors. Choosing a selection results in a full page refresh. The technique is especially useful in roof spaces where the collars are necessarily high for headroom. Minimum holes size still needs to be used with multiple smaller fasteners being less likely to exceed the compressive limit of the wood under load transfer. When the joist repair strap is installed at the bottom of a notched floor joists, the strap transmits the tension load that is generated back into the remaining wood at either side of the notch. A small amount of sag in joists under a load is normal . Watch on Purchase Download Joist Strap Design Report (PDF) I was able to achieve my remodel as intended and it's already closed up and finished. More : The 2810HR Joist Reinforcer allows the placement of a 6" diameter hole in a 210 or 212 wood joist and a 4" diameter hole in a 28. The plywood should run parallel to the joists, not across them. The moment of inertia of the three 2 x 10 southern yellow pine joists used for a test section was calculated to be 296.8 inches^4. The moment of inertia of the three 2 x 10 southern yellow pine joists used for a test section was calculated to be 296.8 inches^4. We feel much better about the floor after installation of the reinforcers. That for the steel reinforced joists was calculated to be 512.5 inches^4. 540-589-9669 | dan@joistrepair.com, For availability in other countries please call - 540-589-9669, Notch Reinforcer Installation Instructions. If you want to use nails they should probably be power driven to produce a very tight hole fit. 2x10 HR Floor Joist Hole Repair Kit for reinforcing joist or truss holes, route utilities right through floor joists 155 reviews $64.95 $59.95 Sale 2x10 DNR Deep Notch Floor Joist Reinforcer - For deep notch cuts up to edge of joist, truss, in structural member 23 reviews $99.99 $79.95 Sale Replacing a TJIJoist. Cast Iron sink in an Ikea cabinetnon apron. If your project requires faster service please call and we will do our best toaccommodate your needs. This is where the wood comes in. admin@nolan-engineering.com, Designed by Elegant Themes | Powered by WordPress. In a full flitch beam the metal is trapped between two pieces of wood, preventing buckling under load.Flitch beams often fail to deliver their rating since the holes in the metal are over-sized. Floor Joist Repair Cost for a 500-Square-Foot Room. Some orders that are placed early in the day may ship that day while others may not. The Design Report is stamped by certified Engineers in multiple States and has been accepted by Building Inspectors across the United States and Canada. ATTENTION INTERNATIONAL CUSTOMERS: CUSTOMS FEE MAY BE INCURRED UPON DELIVERY. Please download the engineering report for aditional details. "The steel straps were 1.5-inch by 1/8-inch, and were nailed to the joists with 16p nails 6-inches on center.". When renovating a building, you might be challenged by floor joists that have been cut to allow for pipes or conduits to pass through, or you may be considering cutting existing joists to install new plumbing or conduits. All fasteners and driver tip are included. It's probably too much to ask but if possible it would be good to jack up each beam prior to sistering on a new joist. . Outside Diameter), CS 25 ft. 16-Gauge Galvanized Coiled Strap, HTT 16 in. This would *pre-stress* the steel, such that it was carrying a significant % of the dead load, right from the go. TJI joists with top flange notches. The DP24 has been tested and found suitable for tension repairs where the notch cut is from the bottom of the joist up. By clicking "I AGREE" below, you are giving your consent for us to set cookies. Installation Instructions and Eng Report. Notch size is 6" wide and 5.25" deep, allowing for the custom installation of plumbing, electrical, or other utilities. After running the bolt or rod from the inside out through the ledger, position the deck-joist hardware and screw it in place. Nailing two 2x4s together will work to span about three joists, unless the sag is under a weight-bearing wall. Use all specified fasteners; see General Notes. The DP34 works for notches up to 16" wide. An easier way of doing this is to forget the jacking and attach a steel strap only at the beam ends and then drive a opposed wedges between the steel and the joist at mid span. Installing strapping. An easy-to-use guide illustrating requirements for the repair and protection of plumbing, HVAC and electrical utilities in various building codes, and what Simpson Strong-Tie products should be used. Skyline Joist Reinforcer solutions are strongest and Reinforcers made for routing plumbing, wiring, and HVAC right through floor joists. The trick is to keep the steel from buckling, which can be avoided by fastening every few inches with nails, screws, or bolts. That is not the case here. Model # RPS28Z. 1-16 of 710 results for "Joist Straps" RESULTS 6 Pcs Connector Straps, Steel 14-Gauge Hurricane Tie ,Hot Dip Galvanized Joist Hangers Fit 4 X Truss to Rafter Connector , for Roofing Trusses Wood Timber Connectors 4 $1999 FREE delivery Thu, Feb 16 on $25 of items shipped by Amazon Or fastest delivery Tue, Feb 14 Each kit consists of a steel strap that is ideally screwed to the bottom of the floor joists. Choosing a selection results in a full page refresh. Flat T Shape Large Tee Repair Plate Bracket Mending Fixing Corner 70x50x20mm - Pack of 20. SKU: HWSIJX15. x 4 in. Repair detail for TJI joists with holes too close to bearing. Screws work better, but need to be in tightly dimensioned holes.Even 16d nails are a little small for the compressive strength of most wood types in this type of application. The DP34 Deep Notch Repair Kit restores the strength of Floor Joists resulting from very deep notch cuts from the bottom of the Joist up. Common Repairs. Replacing some part with a piece fastened on, such as a steel strap on the bottom, is really making it into a composite joist. They have holes for nails and are screwed to fasten them in place securely. "Those joist reinforcers worked fantastic! (Available from NTIS as ADA013987.). Two connections per deck are all that's needed. What is the price range for Metal Straps? This product is manufactured from pre-galvanised mild steel classified as Euro class A1 in accordance with EN 13501-1, making it resistant to corrosive chemicals and physical impacts. Find My Store. Click for Drawings of Plates They are not generally required at the ends of . Get an in-depth look at the connectors that safely secure the parts that hold up the deck joists. http://www.homebuildingandrepairs.com/repairs/framing/index.html Click on this link for more information about home repairs. Even though I seemed to be the only one who noticed it, I just couldn't stand the wobble. The joists are true 2x8 or thereabouts. Allowable loads have been increased for wind or earthquake loading with no further increase allowed. The DP24 Deep Notch Repair Kit restores the strength of Floor Joists resulting from very deep notch cuts from the bottom of the Joist up. Call us at 540-589-9669. Decrease quantity for Joist Repair Kit - 34" Strap, Increase quantity for Joist Repair Kit - 34" Strap. Need aHole Reinforcer instead? Have an exterminator solve the insect problem before fixing your joists. That for the steel reinforced joists was calculated to be 512.5 inches^4. Joist End Repair Plates - BM6, BM9 and BM17 (in two depths) 1. Of course, the strength of this design is limited by the amount of anchorage of the steel strap but if reducing deflection by half is the goal, it works quite well.