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Internal, External & FD30 Steel Doors – Steel Door Online

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Technical Drawings & System Details

Architects, designers and installers often require precise technical information before specifying steel doors for a project.
On this page you can download and review detailed drawings for our steel door systems, including single doors, double doors, fixed partitions and fire-rated configurations.

All drawings are based on the Ottostumm W40FR system and illustrate frame profiles, glazing details, optional closers and installation sections.

Ottostumm W40FR - SD

Single Steel Door – W40FR System

Ottostumm W40FR - SD (conceal self closer)

Single Steel Door – Concealed Self Closer

Ottostumm W40FR - FW

Fixed Steel Partition / Fixed Wall

Ottostumm W40FR - DD (external self closer)

Double Steel Doors – External Self Closer

Need help interpreting the drawings or specifying your project?

Our team works closely with architects, builders and homeowners to ensure every steel door system meets structural and aesthetic requirements.

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