Technical-room and shaft doors: types and where they go

Every building has a service side the residents never think about: plant rooms, risers full of pipes and cables, meter cupboards, water and electrical intakes, store rooms. Each of those openings needs a door that is tougher than a cupboard panel and chosen for the job it does. Technical and shaft doors are steel, powder-coated and made to measure for exactly these spaces — and where the building's fire strategy puts a compartment line across one of them, that opening becomes a certified fire door instead.

What a technical door is

A technical door is a steel service door. It is not a decorative entrance and it is not a fire door by default — it is the robust, made-to-measure closure for the parts of a building that keep it running. The construction is built for duty:

• Steel leaf and frame, for the knocks and daily use a service area sees.
• Powder-coat finish, in RAL custom colours, so the door resists wear and can match the corridor or stay a plain neutral.
• Made to measure, because plant rooms and risers rarely come in standard sizes.
• Optional vision panel, where staff need to look into a space before entering.

That is the baseline. These doors earn their keep on the duty cycle a service area imposes: trolleys, tools, contractors in and out, and a frame that has to stay square after years of it. The question that decides which kind of door each opening gets is not the toughness — all of them are steel — but where the opening sits in the building.

Where each type goes

The table is a starting point, not a rule. The same physical opening — a riser door, say — might be a plain shaft door in one building and a certified EI 60 door in another, depending entirely on where the fire-safety design draws its compartment lines.

Technical door or fire door? The line that decides

This is the one judgement that matters, so it is worth stating plainly. A technical door and a fire door can close the same-looking opening, but they are not interchangeable:

• A technical door is specified where the opening needs a robust, secure steel closure but is not on a fire-separating line.
• A fire door — EI 45, 60, 90 or 120, certified — is specified where the opening is on a fire compartment or evacuation line. A plant room or shaft that separates fire compartments does not get a plain technical door; it gets the certified class the design assigns.

That class is not a preference and not an upsell. It comes from the building's fire-safety design, prepared under the technical regulation approved by Government of Georgia Decree No. 41. The designer assigns the rating to the opening; the supplier matches a door to it. If your schedule does not yet say which technical openings are fire-rated, that is a conversation with the fire-safety designer before anyone orders doors — we will not guess a rating.

What Unigon supplies for the service side

Unigon DOORS makes both families, so the whole service side can come from one specification:

• Technical and shaft doors — steel, powder-coated, RAL custom colours, made to measure, optional vision panel.
• Certified fire doors — EI 45, EI 60, EI 90 and EI 120, backed by certificates, for the technical openings that sit on fire lines.

Because both are produced to the project's dimensions, a run of risers or plant rooms can mix plain technical doors and fire-rated doors on one schedule, each made to its own opening, and arrive as one delivery.

A checklist before you specify technical doors

• Every technical opening is listed with its location and function.
• Each opening is marked fire-rated or not, per the fire-safety design.
• Fire-rated openings carry their required class (EI 45 / 60 / 90 / 120).
• Sizes are confirmed — these are almost always made to measure.
• Finish and RAL colour are specified per corridor or area.
• Vision panels are noted where a space must be checked before entry.
• Certificates for the fire-rated doors are agreed for handover.

Get the service side specified right

Send us your schedule with each technical opening and the fire class where one applies, and we will match every one to a technical, shaft or certified fire door — steel, powder-coated, made to measure — and quote them together. We supply across Tbilisi, Batumi, Kobuleti and Rustavi. Call +995 596 81 88 00 or write to sales@unigon.ge to get a quote.