Expandacom Technical Details

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Length: 6,204mm / Width: 2,309mm (with gutter 2,391mm) / Height: 2590mm, Weight: 1,286kg


The prefabricated Expandacom is an insulated closed volume demountable accommodation unit, designed for use in very restricted areas above and below ground. Assembly is simple, and is achieved by mounting the sandwich panels and components into the steel frame and chassis, requiring only manpower.

The unit comes with 1 x door panel and 2 x window panels as standard. These panels can be placed anywhere within the frame in order to design different configurations. Additional windows/doors can be placed within the structure.


Chassis (complete) 523kg

Chassis (per section) 82kg

Blank wall panel 17kg

Window panel 40kg

Door panel 55kg

Inner roof panel 15kg

Outer roof panel (complete) 204kg

Outer roof panel (per section) 80kg

Total assembled weight 1,286kg


50mm sandwich panels consisting of two 0.60mm powder coated galvanized steel sheets with 50mm high density (16 kg/m3) polystyrene insulation. Colour: Off-white (RAL 9002).


Ceiling supporting frame consists of a rigid and torsion resistant cold formed 1.50 mm supporting frame, (retention bars) powder coated in off-white (RAL 9002) which locate into spiggots in the four corners of the 3mm corner posts. The outer roof skin is in two parts, and consists of 0.60mm box profile galvanized steel complete with integral gutters. The roof structure has an evenly distributed load capacity of 100 kg/m².


No electric wiring and equipment fitted. The unit is designed to have a surface mounted electrical installation.

Optional electric pack available.


The floor consists of a steel structure reinforced to satisfy bearing capacity and rigidity requirements. Flooring is fixed on top of the bearing structure composing of 12mm Cement particle board on which 2 mm thick PVC linoleum covering is laid over. (Flash point B1 – difficult to burn, smoke density Q1).

Chassis supporting frames and structure are manufactured from 3mm cold formed galvanized steel profiles . Vertical profiles are 1.5 & 2mm cold formed powder coated black steel profiles. The chassis can be split into five parts if  required. No insulation in chassis.

Structure has 250 kg/m² evenly distributed load capacity. Deflection is L/300 when placed directly onto level ground.


Apertures are cold formed powder coated 1.23 mm galvanized steel. The door is 0.6 mm powder coated galvanized flat steel formed into a sandwich panel with 50mm honey comb insulation c/w with all door furniture and euro cylinder lock.

Windows: uPVC double glazed window with vacuum sealed unit (4+10.5+4), inward opening with locking handle. 805 x 1135mm. Fly screens are available.


All nuts, bolts, and interconnecting trim are included in the package. To stack/link you will require additional add-on ‘kits’ that are available from your dealer.


Expandacom can be extended side to side or end to end by using the special linking kit. Units can be stacked by using the stacking kit. Both items are available separately.


When double stacking, the units need to be pre-assembled, prior to being craned or forklifted into position


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6m Expandacom Technical Drawing
6m Expandacom Technical Drawing


All components of the Expandacom flat pack office container are packed to ensure that they are not damaged during transportation, loading and unloading under normal circumstances. The smallest transportation cube is achieved in this packing process.  Flatpacked dimensions 2,425mm x 6,240mm x 510mm, 1,286kg.


All components are replaceable. Additional window and door panels can be added to the original structure at any time.

Due to our continuous product development programme we reserve the right to change the specification without prior notice.

Expandacom is not designed to comply with U.K Building Regulations approval.

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