Solid Internal Door

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The Solid Internal Multi Purpose Door

The OIT multipurpose internal door has been manufactured and designed for tough everyday use in both industrial and commercial properties, workshops and administrative buildings, schools, barracks, apartments, nursing homes, hospitals, public authorities and more. In each application, the door is subject to a large deal of wear and tear. To put your mind at ease, the OIT door has also been qualified as a burglar resistant door (DIN EN V 1627). This brilliant new multipurpose internal door has been specifically designed to withstand such rough treatment.

The Hormann OIT 40 is a heavy-duty and reinforced internal door.

The OIT doors are available as a ready-to-hang door leaf or as a complete ready-to-fit door set.

The door leaf is delivered with a fitted lock and bright galvanised hinge top parts V 0026 WF firmly screwed into the reinforced sections, but without lever handle set.

Door set
The door leaf is equipped with a lever handle set and a special corner frame made from 1.5-mm-thick galvanized sheet steel with powder-coated primer in Traffic white (similar to RAL 9016) as standard.

The frame is fitted with an EPDM seal on 3 sides, with welded frame parts and grouting lugs. The door is delivered with corner and profile frame as well as block frame; you can also insert it into an existing standard frame or in every Hörmann steel frame.

Multiple Uses - Multiple Sizes! 

The OIT Multi Purpose door is available in 3 different varieties for different purposes; Single Leaf Door, Double-Leaf Door and Single Leaf High Security Apartment Door. Both single leaf doors are available in similar ordering sizes, however the double-leaf door is only available in larger ordering sizes.

The OIT burglar resistant multi purpose door is also available with a range of optional extras to make your door feel unique and optimise your needs. This includes:

> A range of handle sets - Plastic, Aluminium and Stainless Steel levers and knobs!
> Wide Angle Spy Hole
> Letter Box
> Ventilation Grile
> Retractable Bottom Seal
> TS4000 Door Closer
> Bathroom Lock
> Glazing
> Card Locks for Hotel Use





Single Leaf Doors are available in any size upto:
1250mm wide
2250mm high
      Double Leaf Doors are available in any size upto:
2500mm wide
2250mm high
Standard Single Leaf Door Sizes   Standard Double Leaf Door Sizes


OIT multipurpose door with porthole circular windowed section in aluminium in catering kitchen facility OIT double swing doors with several uses such as office blocks, schools, meeting halls, community centres high security apartment doors with modern apperance and top grade locking system and high insulation and acoustic values
Single Leaf Door Double-Leaf Door Single Leaf High-
Security Apartment Door

Steel doors from Hörmann are more than just practical. They are defined by their conforming visual appearance. The advantage for architects and building owners: Doors fitted on the same building level fulfilling different functional requirements are perfectly suited to one another.

Dependent on the purpose of the door and requirement profile, we offer OIT doors with three different infills available on request.

tubular chipboard infill composite timber infill mineral wool infill

Tubular Chipboard

Offers dimensional stability necessary in everyday use

U = 2.5W/m²K

Composite Timber
on request

For improved acoustic & thermal insulation

Mineral Wool
on request

For improved acoustic and thermal insulation

U = 1.7W/m²K


Available In A Range Of Superb Colours


Galvanised Traffic White
(similar to RAL 9016)
Light Grey
(similar to RAL 7035)
Dove Blue
(similar to RAL 5014)
Sepia Brown
Light Ivory Window Grey
(similar to RAL 7040)
White Ash Cherry Natural Oak
Light Oak Beech Dark Oak
Golden Oak Rosewood


Also Available With Window Sections


Circular Glazing - 300mm

Aluminium glazing frame anodized in natural finish (E6/EV1) on request in brushed stainless steel.

Window Section Fig. 5

Glazing frame with galvanized door leaf - Aluminium (can be painted)

Window Section Fig. 6

Glazing frame with powder-coated door leaf: Aluminium anodized in natural finish (E6/EV1)

Window Section Fig. 7

Glazing frame with foil-coated door leaf: stained timber matching the door leaf