Technical specifications

model no. mh 101


The Modular FLAT PACK unit or container is designed as a light, solid construction system consisting of STEEL floor and roof frames and corner profiles. The system enables compounding of individual containers in longitudinal and transverse directions without limits. It also enables compounding of containers in 2 floors in height (ground floor + first floor), or in 3 floors in height for warehousing of these containers (ground floor + 2 floor). Wainscots of the container are made of light insulation panels and offer pleasant climate in the interior due to their building and physical properties.

Dimensions and tare (ISO Standard 1161)

  • External length 20’/ (inner length) 20’: 6.055m/(5.771m)
  • External width/ (inner width): 2.435m/(2.151m)
  • External height/ (inner height): 2.790m/(2.51m)
  • Tare weight: 2200 Kg

Containers can be delivered assembled or individually in flat pack or kits 864mm high.

3 kits can be bundled in packages 2591mm high (ISO dimensions).

Technical illustration of a cross-sectional modular building structure with labeled components and a human figure for scale.


Get in touch with our friendly team today for further information on the specification of our products. We offer units for immediate delivery, or bespoke options to suit your requirements.

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Steel framework

  • Material: Cold formed steel profiles in a thickness of 3 to 4mm (Top and Bottom rails).
  • Surface working: electrophoresis layer of 20μm. Waterborne two-component epoxy galvanizing primer of 30μm. Waterborne single component super weather resistant finish paint of 40μm.
  • Fittings: 8 corner fittings (dimensions according to ISO standard 1161), rainwater pipe in the roof framework, plate thickness of 10mm excluding top corner fittings of the top kit of each bundle (20mm thickness).
  • Optional Forklift openings: Openings for fork-lift pockets in the floor framework, dim 90mm x 340mm with centre distance of 2050mm.
Steel framework of prefabricated TF Jackson building

floor composition

  • External wainscot: flat galvanized steel sheet metal in a thickness of 0.4mm.
  • Insulation filling: non-combustible mineral wool in a thickness of 100 mm among hollow steel transverse supports. Mineral wool density: 50 Kg/m3.
  • Steam blockade: PE foil in a thickness of 80μm.
  • CCA boards (Cellulose Fibre Cement Board, Autoclaved) in a thickness of 18mm Density: 1500 Kg/m3.
  • Reaction to Fire Classification: A1 certified ISO EN 13501.
  • PVC flooring covering in a thickness of 1.5mm.
  • Permitted loading: 4 .5 KN/m2.
  • K value: 0.45 W/m2K.
  • R value (Thermal Resistance) = 2.2 m2 K/W.

Dimensions and tare (ISO Standard 1161)

  • External length: 20’/ 6.055m (inner length 5.771m)
  • External width: 2.435m (inner width 2.151m)
  • External height: 2.790m (inner height 2.51m)
  • Tare weight: 2200 Kg
TF Jackson prefabricated building floor

ceiling composition

  • External wainscot: 1.5mm thick corrugated “ISO” Roof, CORTEN made, electrophoresis and painted.
  • Insulation filling: Non-combustible mineral wool in a thickness of 50mm among steel 30 x 50 x 1.5mm roof purlins. Mineral wool density: 50 Kg/m3.
  • Ceiling made of 50mm thick mineral wool sandwich panels screwed to the roof purlins of the ceiling frame.
  • Steam blockade: PE foil in a thickness of 80μm.
  • Housing of electrical connection mounted on the top frame in upper corners of a shorter side wall.
  • Meteor water outlet: 4 x 50mm dia. PVC rainwater pipes, in each corner posts.
  • Permitted loading (ISO roof): 2.8 KN/m2.
  • K value: 0.45 W/m2K.
  • R value (Thermal Resistance) = 2.2 m2 K/W.
Ceiling installation i progress on a prefabricated building

façade side walls

  • Side panels width: 1140mm; total panel thickness: 100mm.
  • Five panels fit into the long side and two panels fit into the short side of container and they are fully interchangeable.

Sandwich mineral wool panel composition:

  • External wainscot: Galvanized and painted.
  • Steel sheet metal in a thickness of 0.5mm, white colour.
  • Insulation filling: Mineral wool in a thickness of 100mm.
  • Inner wainscot: Galvanized and painted steel sheet metal in a thickness of 0.5mm, white colour.
  • Permitted loading: 110 Kg/m2.
  • Mineral wool density: 100 Kg/m3.
  • K value: 0.45 W/m2K.
  • Fire rating: 60 minutes according to BS 476.
Prefabricated flat-packed building at TF Jackson


Standard External Aluminum door:

  • Single fold, 40 mm thick.
  • Pre-painted aluminum frame.
  • Hot galvanized and pre-painted steel sheets (inside and outside).
  • Insulated with PL (polystyrene).
  • Net opening dimensions: 754 x 1985 mm; furnished with a handle lock with 3 keys.


PVC Tilt and Swing Window with Alumnium Rolling Shutter:

  • Windows are made of PVC, Tilt and Swing, in white color.
  • Dimensions 800 x 1100 mm, glazed with double-layer glass in a thickness 5/9/5 mm.
  • Tilt and Swing mechanism with Alumnium made rolling shutter.
  • One window is built into one wall panel.
Prefabricated building windows with shutters

standard colour

  • Complete steel construction and walls are painted in grey-white color (RAL 9002). Door and windows are in white color.

electrical installations


  • Standard: CE.
  • Voltage: 220 V, 50 Hz Single (1P).
  • Network connections: Suitable-connection plug/socket, 3 poles, 32 A , 220V, IP67, mounted on the top frame in upper corners of a shorter side wall.
  • Inner distribution system: Cables of suitable dimensions (6, 2.5, 1.5mm2 for 220 Voltage), flush-mounted.
  • Protection: protective current switch (63 A +/2E-0,03A), automatic fuses (C-characteristics) of suitable power(6A, 16A).
  • Earthing: galvanized connector with a steel plate of dimensions 20 x 60mm welded on the bottom frame.

electrical fixtures and fittings:

  • Electric distribution box – 1×63A+/2E-0.03A (protective current switch), 1×10A & 7×16A as standard layout (automatic fuses).
  • LED strip lights – 2 sets, 40W, IP 65 rated.
  • Flush mounted Light switch – 1 set, 10A, one gang.
  • Flush mounted Power sockets – 6 x UK double socket, 13A; 1 x socket with USB port.
Electrical installation at TF Jackson


Dimensions, Weight, Payload and Stacking are RINA Certified. Certificates available for components.


  • Container units can be delivered in bundles
    – (3 x 20’ kits) 864mm ht. per kit.
    – (4 x 20’ kits) 648mm ht. per kit.
  • Container units can be delivered assembled (for local delivery only).


All components have 1 (one) year warranty; paint has 1 (one) year warranty.

Rights to technical changes are reserved.


Get in touch with our friendly team today for further information or to discuss your requirements. Call us on 01524 60182 or fill out our simple enquiry form, and we’ll be in touch.

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