STS202 BR1, BR2, BR3 and BR4 explained

If you are confused about security door standards such as STS202 BR1, BR2, BR3 and BR4 then read on, we’ll try to explain!

The technical specification STS202 (also known as STS202 Issue 3: 2011) involves a series of stringent tests. These tests are graded into separate classes of resistance. Each one of these classes equates to an increasingly prolonged attack and an additional set of available tools for the ‘attacker’.

What are STS202 BR1 and BR2?

These are separate attack levels that a door has to withstand to be able to be credited this standard. While it is associated with opportunist break-ins, it is still surprising how many doors currently sold in the UK fail this test. Typical attacks in this category are likely to avoid unnecessary risk and noise such as heavy banging or power tool usage. The tools used are commonly hand tools, levers and physical force.

What are STS202 BR3 and BR4?

These are more stringent attack levels that you would definitely associate with more experienced burglars who are aware of their likely reward. These criminals plan their attacks well and are prepared to make noise to get through the door. The attack tools used range include:

  • spanners
  • lock picking tools
  • screwdrivers
  • pliers
  • wedges
  • mole grips
  • large hammers
  • battery powered drills
  • cold chisels
  • bolt cutters
  • axes
  • large crowbars
  • forceful kicks and blows

Where would you find BR3 and BR4 doors?

These are often found on more commercial properties as can they withstand attacks for a longer duration. Henleys not only provide solutions for commercial clients, but can provide domestic clients with the same levels of protection. We can further boost your security with our internal security doors, external security doors, bespoke safe rooms, bulletproof panelling and more.