The Simpson HWPH412 High-Wind Purlin Heavy Hanger is a heavy top-flange joist hanger engineered by Simpson Strong-Tie to support joists on purlins or beams in both wood and cold-formed steel construction. Built for high-wind regions and high-uplift structural demands, this hanger delivers design flexibility and versatility that provides very high uplifts and down loads - making it a reliable choice for panelized roof systems and other demanding load-bearing connections where performance cannot be compromised.

Key Features

• Solid one-piece top flange - provides extra stability in panelized roof applications, reducing movement at the connection point during installation and under load
• Weld-on compatible design - may be used for weld-on applications, giving contractors added installation flexibility across a range of structural configurations
• Sized for 4x12 nominal lumber - ensures a precise, secure fit with no guesswork, eliminating field modification and supporting faster, more consistent installations
• Heavy-gauge steel construction (3 ga. top flange, 7 ga. stirrup) - the thicker top flange handles demanding uplift forces while the stirrup provides the structural depth needed for heavy joist loads
• Simpson Strong-Tie gray paint finish - provides a consistent, durable coating suited for protected structural environments
• Compatible with both wood and cold-formed steel construction - broadens the range of projects this single hanger can serve, from traditional wood-framed roofs to light-gauge steel assemblies

Why This Product

• Purpose-built for high-wind and high-uplift conditions - the HWPH series is specifically designed for enhanced uplift resistance, making this hanger an appropriate choice for structures in wind-prone regions where standard hangers may fall short of project requirements
• Dual-gauge steel where it matters most - the combination of a 3 ga. top flange and 7 ga. stirrup is engineered to handle both very high uplifts and down loads, giving structural designers and engineers the capacity they need without oversizing the connection
• One-piece top flange for stability in panelized roof systems - unlike multi-piece alternatives, the solid one-piece top flange holds its position during panelized roof assembly, supporting more efficient jobsite workflows and a more reliable finished connection
• Versatile across construction types and installation methods - whether used in wood-framed or cold-formed steel construction, or installed with nails or welds, this hanger adapts to the demands of the project rather than limiting design options

Specifications

• Model Number (MPN): HWPH412
• Series: HWPH High-Wind Purlin Heavy Hanger
• Member Size: 4x12 Nominal Lumber
• Seat Width: 3-9/16 in.
• Top Flange Gauge: 3 ga. steel
• Stirrup Gauge: 7 ga. steel
• Finish / Coating: Simpson Strong-Tie Gray Paint
• Compatible Construction Types: Wood and Cold-Formed Steel
• Country of Origin: United States

Approved Applications

• Supporting joists on purlins or beams in wood-framed construction
• Supporting joists on purlins or beams in cold-formed steel construction
• Panelized roof systems requiring extra top-flange stability
• High-wind regions demanding enhanced uplift resistance
• Weld-on structural connection applications

Installation Fastener Requirements

Install with (9) 0.162 x 3-1/2 in. nails in the header and (10) 0.148 x 1-1/2 in. nails in the joist.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What size lumber is the HWPH412 designed to fit?

The HWPH412 is sized for 4x12 nominal lumber, with a seat width of 3-9/16 in. to provide a consistent and secure bearing surface.

Can the HWPH412 be used in both wood and cold-formed steel construction?

Yes. The HWPH412 is designed to support joists on purlins or beams in both wood and cold-formed steel construction. It may also be used for weld-on applications, providing added installation flexibility.

What fasteners are required to install the HWPH412?

Installation requires (9) 0.162 x 3-1/2 in. nails in the header and (10) 0.148 x 1-1/2 in. nails in the joist.

What gauge steel is used in the construction of the HWPH412?

The top flange is made from 3 ga. steel and the stirrup is made from 7 ga. steel. The hanger features a solid one-piece top flange for extra stability, and is finished with a Simpson Strong-Tie gray paint coating.