354S / 350S

Commercial Insulated Steel Sandwich Doors

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350S / 354S

Commercial Insulated Steel Sandwich Doors

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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, and standard bottom section safety fixtures contribute to safety.  The 350S are available in white, brown, sandstone, black, or silver metallic.  The 354S is available in white or brown. 

Feature Rating
Thermal Rating


Durability


Low Maintenance


Characteristic 350S Heavy Duty 354S Heavy Duty
Insulation value R-10.4 R-10.4
Steel thickness 25 ga. 24 ga.
Section thickness 2" 2"
Design options 3 panel styles + 3 window designs 2 panel styles + 3 window designs
Colors 5 color finishes 2 color finishes
Warranty Door: 10yr - Hardware: 1yr - Springs: 1yr Door: 10yr - Hardware: 1yr - Springs: 1yr

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Panel Construction

The industry leader in innovative door safety, insulation, and strength

1. Tongue & Groove Section Joints

Precisely designed thermally broken section joints reduce air infiltration and create a weather tight seal.

2. Sandwich Construction

A 3-layer steel front and back construction with insulating polystyrene core increases energy savings.

3. Panel Surface Treatment

A galvanized finished painted steel provides superior corrosion resistance for years of trouble-free performance

4. Bottom Weather Seal

Keeps out wind, rain, debris and other elements for added energy savings.

Hörmann Innovations

Door Design Options

Choose your panel, color and windows

Glass Options

Supporting Documents

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