DNA Products

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The DNA Products Sectional Overhead Doors are ideal for use in factories, warehouses and other industrial applications. When space is restricted or there is no room for a Roller Shutter these vertically opening doors are a great solution to your needs. This type of door also offers extra insulation and soundproofing to any opening. Weather seals ensure that all doors are long lasting when used outdoors.

If you are looking for insulation and durability,

look no further.

Call us on 01472 361601 or email [email protected]

Kingspan 610mm x 40mm thick                    composite panels manufactured using 0.5mm thick hot dipped zinc coated (to BS EN 10147) steel internal and external facing sheets, each with a class 1 surface spread of flame when tested to BS 476: Part 7:1971. These sheets are bonded together using IPU foam, which has a density of 40ks/m3. The panel itself gives a “U” value 0.51 W/m2 K, meaning that typical 5,000 x 5,000 wide door has a

“U” value of 0.9 W/m2 K and has formed tongue and grooved hinged joint, incorporating a neoprene seal running the full length of the panel to give excellent weather resistance. 80mm panel also available has a typical “U” value of 0.24 W/m2 K, meaning that a typical 5,000 x 5,000 wide door has a “U” value of 0.54 W/m2 K. The acoustic value of the door panel has a single weighted sound reduction of [RW] of 25db. Standard stucco finish is embossed primer coated to both faces.

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Panel Design

Incorporates a standard V-grooved pattern to both internal and external faces.

Panel Hardware

The roller carriers are adjustable and along with the intermediate panel hinges, are hot dipped galvanized steel. The rollers which run in the side-track are sealed for life, self-lubricating bearings c/w a nylon tyre to give smooth and quiet operation and sealed directly to the seal connected to the side fixing angle. This is also pre-drilled.

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Panel Options

Kingspan Plastisol XL200 or polyester coating to the external face an extensive range of colours. Internal RAL 9010. Factory paint finish to either internal or external face to any

BS or RAL colour.

Panel Finishes External

25 Micron, Stucco Embossed, Thermosetting Polyester Paint or Kingspan XL Forte - 200 micron, Leather-grain embossed thermoplastic paint with excellent abrasion resistance.

Panel Finish Internal

25 Micron, Stucco Embossed, Thermosetting Polyester Paint in RAL Bright White RAL 9010.

Sectional Door 1 Sectional Door Colour Chart

Standard External Colours

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Door Head Gear

Sectional doors are counterbalanced to ensure the smooth running of doors. Using minimal effort. All counterbalance spring calculations are designed to get the maximum life out of the door springs we manufacture (most typical loading docks are calculated to a minimum of 20,000 cycles). The springs are high tensile helical wound steel. Shot blasted for improved performance. The springs are mounted on a steel shaft supported by bearing brackets incorporating sealed bearing rollers, to ensure free running of the shaft. Also mounted on the spring shaft are the cable drums. These carry the aircraft quality cables, which have 7:1 safety factor. These are looped and swaged using a hydraulic press to ensure the cables do not get detached from the cable drums or the brackets which connect the cables to the bottom of the door panels. Spring break devices and cable breaks are fitted to doors as standard to comply with CE markings.

Guide Tracks

The door tracks are galvanized steel ‘J’ type (designed to give free and easy running for bearing rollers). These are mounted on a galvanized steel jamb angle for fixing purposes via Indupart’s unique stud welding system which ensures the most effective seal to the building as the tracks need no adjustment on site. Cable break devices are fitted to all doors to comply with CE markings, we also offer an optional anti lift bracket.

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Guide Track Options

Guide tracks are individually manufactured to suit site conditions, taking into consideration door size, headroom and roof pitch, see ‘installation clearance’s’ section for details.


Epdm Perimeter Seals. Our Sectional Doors are fully perimeter sealed, as well as the intermediate panel seals, to provide the most effective weather seal to your door. All fixing faces, floors and lintels must be flush and square.


A range of manual and automatic operations are available (GFA Operators which include emergency chain override in the event of a power failure), including a large number of safety features as options.

Other Options

As you would expect, we also offer a massive range of optional extras, including but not limited to, double-glazed windows, integral personnel doors in main door and door safety furniture.


Designed for industrial applications.


Doors to comply with BS EN 13241-1:2003 + A1 : 2011

Mechanical Aspects – PASS (BS EN 12604)

Requirements for safety in use of power operated doors – PASS (BS EN 12453)

With 3rd Party Certification by recognized testing authority.


Wind Pressure – CLASS 3 (BS EN 12424) – Doors to achieve higher wind load classes are available on request


Manual Opening Force –PASS

Water Penetration – CLASS 3 (BS EN 12425)

Air Permeability – CLASS 2 (BS EN 12426) offering an air tightness of 12m3/m2h at a pressure of 50Pa

Air Leakage –Class 3

CE Marked with Manufacturers declaration of conformity.

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DNA Products Sectional Door - Standard Lift 40mm

Technical Drawing PDF


DNA Products Sectional Door - High Lift 40mm

Technical Drawing PDF


DNA Products Sectional Door - Vertical Lift Lift 40mm

Technical Drawing PDF


DNA Products Sectional Door - Low Headroom 40mm

Technical Drawing PDF

Sectional Door - Standard Lift Sectional Door - High Lift Sectional Door - Vertical Lift Sectional Door - Low Headroom

Drawings for the following available upon request:

High Lift + Pitch

High Lift Consoles

High Lift Consoles + Pitch

Low Headroom + Pitch

Low Headroom + Springs

Standard Lift Springs – Low Headroom Track

Standard Lift + 3-inch track

Standard Lift + 80mm Thick Panel

Standard Lift + Pitch

Vertical Lift Consoles

We can also offer full Service and repairs on this model

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