If you require a high level of door security in your home or business steel security doors are the perfect answer. Exterior steel doors are suitable for applications requiring higher than normal levels of security and are supplied with a variety of locking options including panic escape bars, sash locks and access control systems.
The fact is that a timber front door and uPVC type doors are simply not strong enough and do not provide the level of deterrence required. Statistics have indicated that attackers can bypass uPVC door locks for instance with relative ease. A determined burglar will also get through a wooden door even if fitted with a number of high security locks. Don’t be put off by a steel door as being boring or industrial looking. A wide range of types are available on the market that comes in various grades depending on the level of threat, many colour shades and including luxury wooden grain effect.
Typical Applications
Typical applications for security doors include:
Residential steel security doors
and
Commercial steel security doors such as:
- Universities
- Leisure facilities
- Schools
- Embassies
- Banks
- Post offices
- Retail outlets
Crime is an ever present problem these days and it now more important to have an effective crime prevention policy in place to protect your premises. Steel security screen doors, with the strength of a safe vault, will resist varying levels of forced entry attempts that will defiantly put a burglar off. Statistics have indicated that a burglar spends 2 to 3 minutes on opening a door using various devices. Steel security doors and frames can resist a series of enforcement attacks by using a variety of hand tools such as crowbars, hammers, screwdrivers chisels etc. over a period of time of up to 20 minutes regardless of noise.
Typical examples of security door types
Main Features
The main features of steel shield security doors include:
- All steel construction for added strength
- Attack resistant
- All steels are electro zinc coated for maximum corrosion resistance
- All joints and corners welded
- High security locks, hinges, dog bolts and anti pry strips
- Can incorporate vision panels
- Outward opening for maximum security
- Many styles and finishes available including wood effects
Specification
A typical specification for high security steel doors is as follows:
| Door outer steel skin | 1.2 mm thick *Zintec steel as standard however 1.6mm and 2.0 mm available for higher security applications |
| Overall door thickness | 45 mm (1¾”) |
| Door structure | Frame internal structure comprising 3 mm thick steel tubing covered with outer skin in one piece with a double pan construction folded and bolted all fused together to form solid steel security doors |
| Anti pry strip | 3 mm thick anti pry (jemmy) strip that protects the lock from attack using a crowbar |
| Escutcheon plates | Escutcheon plate to protect the lock |
| Additional security at hinge stile | Up to four steel 17.5 mm dia. security dog bolts that engage the door into the steel frame on the hinge side |
| Hinging | Each door fitted with up to four stainless steel heavy duty with ball-bearings adjustable hinges for added strength and durability Hinges also available incorporating dog bolts |
| Door threshold | Low profile aluminium threshold for disability access in accordance with building code |
| Door handles and locking | A central cylinder with up to 20 steel extending bolt locking system together with 5 dead bolts. This system will effectively lock the door top, bottom and locking stile. Drill proof key barrel. The keys can be registered so they cannot be copied in a local locksmith without authorisation from the property owner. Usually 3 copies of the keys are supplied with the door on installation D shaped lever handles that are bolted through the security door |
| Door finishes available | Steel doors and door frames are generally supplied as standard with a powder coated finish usually matt grey that is ready for painting on site. An optional extra the door set can be supplied pre painted from a wide range of colours The door set can also come in wood grain effect or lined with timber veneer in various species and colours |
| Door viewer | Provides up to 180 degrees of view on the outside of the door |
| Vision panel | 200 x 300 mm viewing area using 44 mm thick toughened glass sandwich secured in an all steel constructed reinforced and welded frame. Frame can be coloured to match main door |
| Door retainer | High security retainer allowing partial opening of the door to observe a visitor (similar to a door chain, but stronger) |
| Door core insulation | Inside the door filled with fibre glass for thermal insulation |
| Door frame | Galvanized frame, 1.6 mm – 2 mm thick either painted or lined with wood veneered fixed to a sound wall opening. Supplied with draught weather seals |
| Guarantee | All steels galvanised and come with anti corrosion warranties’ for up to 5 years |
| Door weight | Approximately 50Kg/m2 |
| Standard door dimensions (structural opening) | Width 900 mm (2’ 11½”), Height 2100mm (6’ 10¾”) Width 1000 mm (3’ 3½”), Height 2100mm (6’ 10¾”) |
* Electro-Zinc Coated Steel (Zintec)
This is British Steel’s electro-zinc coated steel available in sheet and coil fomats. The advantages Zintec steel over uncoated mild steel is that the corrosion resistance protects the steel while in transit, in storage, during the production and in the manufacturing of the finished products.