Simpson Strong-Tie MMLUI39 (2-1/2″ x 9-1/2″) MMLU Face-Mount Manufactured/Modular Hanger for Engineered Wood
Simpson Strong-Tie MMLUI39 Description
The MMLUI39 is a face-mount hanger designed for modular and factory-built construction, offering versatile fastener placement and compatibility with power nailers.
Simpson Strong-Tie MMLUI39 Includes
- (1) MMLUI39 Hanger
Simpson Strong-Tie MMLUI39 Features
- Versatile fastener placement enables faster installation
- Designed with factory-used tools in mind
- Built specifically for optimal fastening using a power nailer
Simpson Strong-Tie MMLUI39 Applications
- Factory-built modular construction
- Engineered wood joist support
Simpson Strong-Tie MMLUI39 Installation Overview
- Install nails with a powered nail tool, ensuring face protection and straight installation through the nailing grid.
- Adjust nail tool pressure to avoid overdriving nails and causing steel dimpling.
- Place at least one 8d x 1 1/2″ or 10d x 1 1/2″ nail into each nailing grid.
- Add nails as per the MMLU Installation and Load Table for increased capacity.
- Ensure minimum vertical spacing of nails in the same grid is 1/2″ without splitting the wood header.
- Verify MMLU height equals or exceeds 60% of joist height for rotation resistance.
- Install I-joist web stiffeners or floor truss end vertical webs when side flanges do not support the top flange or chord.
Simpson Strong-Tie MMLUI39 Specifications
| Material | 20 gauge |
| Finish | Galvanized |
| Joist Size | 2-1/2 in. x 9-1/2 in. |
| Width | 2 9/16 in. |
| Height | 9 1/8 in. |
| Coating/Material | Zinc Galvanized, G90 |
| Packaging Quantity | 1 |
NOTE: Ensure nails are installed straight through the nailing grid using a powered nail tool to avoid ricochet and follow all safety instructions.
