Heavy-duty and industrial-duty insulated steel sandwich doors. Installed by RAV Garage Door Repair.
Hörmann 350S heavy-duty (25 gauge 2" thick) and 354S industrial-duty (24 gauge 2" thick) commercial doors are insulated as standard. As with all our commercial models, traditional Hörmann quality is evident with our layered panel bonding construction process.
First, hot dipped galvanizing is applied to the steel substrate, followed by a baked-on polyester base coat, then a durable baked-on polyester finish coat. This layering creates a long-lasting surface finish for maximum protection against adverse effects of the elements. This steel finish is applied on both the inside and outside door skins which are then bonded to a HCFC-free polystyrene core.
The 350S and 354S have an R-value of 10.4, so with any model, enhanced energy efficiency and sound-dampening are achieved. A polystyrene insulation fills the top of the door channel for maximum insulation. Our optional double end stile design along with thermally broken tongue and groove section joints add to overall structural integrity.
Tongue & Groove Section Joints
Sandwich Construction
Panel Surface Treatment
Bottom Weather Seal
The microgroove, flush, and raised panel designs have a wood grain texture. Our door panels are constructed using top-of-the-line galvanized steel sheets that are treated with four layers of a strength and weather-resistant coating for a long-lasting surface finish and reduced maintenance costs.
🔧
Our double end stile design adds to the overall structural integrity and long term performance of the door. Available as an upgrade for all door sizes, standard for doors over 16'2" wide.
🛡️
Hörmann 354S and 350S doors come with safety fixtures on the bottom sections for added protection and peace of mind.
🏗️
350S & 354S door panels are prepared inside and out for maximum protection against the elements. Hot dipped galvanizing, baked-on polyester base coat, and durable baked-on polyester finish coat provide a long-lasting surface finish.
Wood grain texture
Wood grain texture
350S only · Wood grain texture
All surface finishes are covered with a durable baked-on polyester finish coat for long-lasting looks.
* Metallic Silver not available in short raised panel designs.
Available as an upgrade for all door sizes for added structural integrity.
HCFC-free polystyrene core provides R-10.4 thermal rating.
RAV Garage Door Repair — Serving
© 2025 RAV Garage Door Repair LLC. All rights reserved.
RAV Garage Door Repair LLC is a trusted garage door service company dedicated to providing fast, reliable, and affordable repair, installation, and maintenance solutions.