Product Description
The Simpson DGT Top-Flange Fire Wall Hanger is a patent-pending, load-tested connector engineered for multifamily, multilevel Type III residential construction where code-compliant fire wall separation is required. Designed for 1-3/4 in. x 16 in. engineered wood joists, this top-flange hanger is the first fire wall hanger built to install with a power nailer, allowing crews to complete the framing connection quickly before drywall goes up. Two layers of 5/8 in. gypsum board slip into place after framing is complete, keeping the installation sequence efficient and the project on schedule. Tested in accordance with ASTM E814 and carrying a two-hour fire-resistant rating for use on both sides of the wall, the DGT delivers a single, verified solution for fire-rated joist connections in wood-framed construction.
Key Features
- Power nailer compatible - first in its category - installs with a power nailer or by hand using 1-1/2 in. or 2-1/2 in. nails, cutting labor time before drywall and helping keep construction schedules on track.
- Two-hour fire-resistant rating (Intertek Design No. SST/WPCF 120-01) - rating is valid on both sides of the wall and applies to 2x4 or thicker walls, supporting code compliance in fire-rated assemblies without additional testing uncertainty.
- Top-flange design accommodates back-to-back installation - engineered for use on 2x6 (minimum) walls, allowing hangers to be set on both sides of a shared wall without conflict, simplifying layout in multifamily framing.
- Space for two layers of 5/8 in. drywall after framing - gypsum board slides in post-framing, so the hanger does not interfere with the drywall installation sequence, reducing rework and coordination issues on site.
- Loads tested and code listed for both nail sizes - verified for 0.148 in. x 1-1/2 in. and 0.148 in. x 2-1/2 in. nails, whether power-driven or hand-installed, giving installers fastener flexibility without stepping outside tested parameters.
- 12-gauge steel with G90 zinc galvanized finish - the heavy-gauge construction provides structural integrity at the hanger seat, while the galvanized coating adds corrosion resistance for long-term performance in framed assemblies.
- Sized for 1-3/4 in. x 16 in. engineered wood joists - the 1-13/16 in. seat width is matched precisely to this member size, ensuring a proper fit with common engineered lumber used in multilevel residential framing.
Why This Product
- Built for fire wall compliance from the start - with a tested two-hour fire-resistant rating per ASTM E814 covering both sides of the wall, this hanger is purpose-built for projects where fire separation is a code requirement, eliminating the need for workaround solutions or field modifications.
- Saves measurable time on multifamily framing - the power-nailer-compatible design means crews can fasten hangers faster before drywall goes up, reducing labor hours at a stage of construction where schedule pressure is highest in multilevel residential projects.
- Simplifies back-to-back installation at shared fire walls - the innovative top-flange configuration is specifically designed for 2x6 (minimum) walls, making it a practical choice for multifamily Type III construction where two hangers share a common bearing wall.
- One hanger, two nail size options - being loads tested and code listed for both 1-1/2 in. and 2-1/2 in. nails, power-driven or hand-installed, reduces the need to stock or special-select fasteners, making field installation more straightforward across different crew setups.
Specifications
- MPN: DGT1.81/16
- Brand: Simpson Strong-Tie
- Member Size: 1-3/4 in. x 16 in.
- Seat Width: 1-13/16 in.
- Height: 15-15/16 in.
- Gauge: 12
- Coating/Finish: Zinc Galvanized, G90
- Country of Origin: United States
- Fire Rating: Two-hour, tested per ASTM E814
- Fire-Resistant Rating: Intertek Design No. SST/WPCF 120-01
- Installation Fasteners: Install with (6) 0.148 in. x 1-1/2 in. OR 0.148 in. x 2-1/2 in. nails in the top; (2) 0.148 in. x 1-1/2 in. nails OR (4) 0.148 in. x 2-1/2 in. nails in the face; and (6) 0.148 in. x 1-1/2 in. nails in the joist (sold separately)
Approved Applications
- Multifamily residential construction requiring fire wall separation
- Multilevel Type III residential construction
- Fire-rated walls requiring two-hour protection on both sides
- Back-to-back hanger installation on 2x6 (minimum) walls
- Engineered wood joist framing measuring 1-3/4 in. x 16 in.
Downloads and Resources
- Two-hour Fire-Resistant rating Intertek Design No. SST/WPCF 120-01
- Specifications
Related Products
- Contact us for additional DGT size options and custom configurations
Note: Product dimensions may differ from picture.
Frequently Asked Questions
What is the fire rating of the DGT1.81/16 fire wall hanger?
The DGT1.81/16 carries a two-hour fire-resistant rating tested in accordance with ASTM E814. The rating applies to 2x4 or thicker walls and is valid for use on both sides of the wall. It is certified under Intertek Design No. SST/WPCF 120-01.
What nail sizes are approved for installing the DGT1.81/16?
The DGT1.81/16 is loads tested and code listed for both 1-1/2 in. and 2-1/2 in. nails with a diameter of 0.148 in. These nails can be power-driven or hand-installed. Specifically, install with (6) nails in the top, (2) or (4) nails in the face depending on nail length, and (6) nails in the joist.
Can drywall be installed after the framing is complete when using this hanger?
Yes. The DGT1.81/16 features a top-flange design that reserves space for two layers of 5/8-in. gypsum board (drywall) to be slipped into place after framing is complete, allowing the power nailer installation to proceed before drywall is hung.
What is the minimum wall thickness required for back-to-back installation of the DGT1.81/16?
The innovative top-flange design of the DGT1.81/16 supports back-to-back installation on walls that are 2x6 at minimum. The two-hour fire rating applies to 2x4 or thicker walls in general use.
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