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3’0” x 6’8” HM, Hollow Metal Door – Commercial Steel Door (36” x 80”)

Our 3’0” x 6’8” HM, Hollow Metal Door (36 inches wide x 80 inches high) — with an actual door size of 35 3/4” x 79 1/8” — is a durable, secure, and versatile commercial steel door engineered for industrial, institutional, and commercial applications throughout the U.S. Designed for exceptional strength, security, and longevity, this hollow metal door is ideal for high-traffic environments and is available with fire-rated options to meet building and life-safety codes.

Availability: 57 in stock (can be backordered)

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Description

Manufactured from heavy-duty sheet steel, this hollow metal (HM) door delivers the strength of solid steel while maintaining a lightweight, easy-to-operate design for smooth installation and daily use. The hollow metal core enhances insulation, helping improve energy efficiency, temperature stability, and sound control in commercial interiors.

Featuring a sleek, modern profile, the 36” x 80” hollow metal door integrates seamlessly into nearly any architectural style or commercial setting. It includes a factory-applied primer finish, making it ready for custom painting or finishing to match project specifications. Compatible with standard commercial frames and hardware, this door is built for reliability, compliance, and long-term performance.

Key Features:

  • Nominal Size: 3’0” x 6’8” (36” x 80”)

  • Actual Door Size: 35 3/4” x 79 1/8”

  • Heavy-duty HM hollow metal steel construction

  • Designed for commercial & industrial use

  • Fire-rated options available

  • Excellent security, impact resistance, and durability

  • Energy-efficient insulated hollow metal core

  • Factory-primed for custom paint finishes

  • Trusted as one of the best hollow metal doors in the U.S.

This 3’0” x 6’8” hollow metal door is a top choice for projects requiring professional-grade security, code compliance, and long-lasting performance, making it a leading solution for commercial metal doors across the United States.

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3’0” x 6’8” HM, Hollow Metal Door – Commercial Steel Door (36” x 80”) 3’0” x 6’8” HM, Hollow Metal Door – Commercial Steel Door (36” x 80”)
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3’0” x 6’8” HM, Hollow Metal Door – Commercial Steel Door (36” x 80”) 3’0” x 6’8” HM, Hollow Metal Door – Commercial Steel Door (36” x 80”)
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Hi, What is the rough opening dimension for this door? Gordon C Eckler Jr asked on March 7, 2026

Thank you for the question Gordon,
To give you the most accurate rough opening for 36" x 80" door, we first need to know which type of frame you are using, as the measurements change depending on the installation method.
Option 1: Wrap Around Type (Most Common) Choose this if you are installing the frame over existing sheetrock.
Rough Opening Width: 38"
Rough Opening Height: 81 1/8"
Quick Tip: We calculate this by adding 2" to the door width and 1 1/8" to the door height.
Option 2: Butt Up Type Choose this for new masonry construction where the frame is installed between blocks.
Rough Opening Width: 40 1/4"
Rough Opening Height: 82 1/8"
Quick Tip: We calculate this by adding 4 1/4" to the door width and 2 1/8" to the door height.
Hope this helps

Isaac answered on March 13, 2026 store manager
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