Product Description
The Simpson MIT318 Top-Flange I-Joist Hanger for 2-1/2 in. x 18 in. Engineered Wood is a 16-gauge steel connector from Simpson engineered to support 90 deg. connections of I-joists to headers with maximum down load capacity while requiring a minimum number of fasteners. Featuring a Funnel Flange design for easier member placement and positive-angle nailing technology developed specifically for I-joists, this top-flange hanger is a practical, cost-effective solution for engineered wood framing where reliable load transfer and faster installation are both priorities.
Key Features
- Positive-angle nailing (PAN) minimizes splitting of the flanges while permitting time-saving nailing from a better angle - means installers drive fasteners more efficiently with less risk of damaging the I-joist flanges during assembly.
- Nail hole material is not removed with positive-angle nailing - preserves the structural integrity of the connector so the connection performs as engineered without compromise.
- Funnel Flange design allows for easier placement of members - reduces time spent aligning the joist during installation, keeping framing work moving smoothly.
- Optional triangle nail holes for increased uplift capacity - gives builders flexibility to upgrade the connection's uplift resistance where project conditions demand it, with the addition of properly-secured web stiffeners.
- Optional fastening with PAT for steel applications/header - extends the hanger's versatility to steel header applications without requiring a different connector entirely.
- Cost-effective solution for standard 90 deg. connections in comparison to welded hangers - delivers structural performance at a lower installed cost, making it a practical choice for production framing and custom builds alike.
- G90 zinc galvanized finish on 16-gauge steel - provides extra corrosion resistance, making the hanger suitable for environments where moisture exposure is a concern.
Why This Product
- Built specifically for engineered wood I-joists - the MIT318 is purpose-designed for I-joist-to-header connections, with PAN technology and a Funnel Flange that address the real-world handling and splitting challenges unique to engineered lumber framing.
- High down load capacity with fewer fasteners required - the top-flange design maximizes load transfer without demanding an excessive number of nails, reducing both labor time and material usage on the job site.
- Versatile connection options in a single connector - optional triangle nail holes for added uplift capacity and optional PAT fastening for steel headers mean one hanger can adapt to varying structural requirements rather than forcing a switch to a different product.
- Domestic manufacturing and G90 galvanized protection - made in the United States from 16-gauge steel with a zinc galvanized G90 coating, the MIT318 is built to consistent quality standards with corrosion resistance suited for demanding construction environments.
Specifications
- Model Number: MIT318
- Member Size: 2-1/2 in. x 18 in.
- Width: 2-9/16 in.
- Height: 18 in.
- Seat Depth: 2-1/2 in.
- Top Flange: 2-5/16 in.
- Gauge: 16
- Coating/Finish: Zinc Galvanized, G90
- Country of Origin: United States
- Installation Fasteners: Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist (sold separately)
Options
- Contact us for Configurable Options and Special orders
Note: Product dimensions may differ from picture. Please see the item description above for specifications.
Frequently Asked Questions
What type of joist is the MIT318 designed to support?
The MIT318 is designed to support 90 deg. connections of I-joists to headers, making it specifically suited for engineered wood applications with a 2-1/2 in. x 18 in. member size.
What is positive-angle nailing (PAN) and why does it matter?
Positive-angle nailing (PAN) is a design feature specifically created for I-joists that minimizes splitting of the flanges while allowing nailing from a better angle to save installation time. Importantly, the nail hole material is not removed with this method, preserving the structural integrity of the connector.
Can the MIT318 be used for increased uplift capacity?
Yes. Optional triangle nail holes on the MIT318 may be used for increased uplift capacity. However, optional uplift nailing requires the addition of properly-secured web stiffeners.
What fasteners are required to install the MIT318?
Install the MIT318 with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist. For steel header applications, optional fastening with PAT is also available.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.