SR2 security doors

SR2 security doors are steel doorsets tested to LPS 1175, Issue 8 code B3. They resist three minutes of attack with basic hand tools. ArxBridge supplies and installs them for commercial, public and industrial buildings across the UK where the threat is an opportunist intruder. They sit at the entry level of the security range.

• B3LPS 1175 Issue 8 rating code
• 3 minutesAttack time against hand tools
• SR2Rating name under LPS 1175
• Steel doorsetsSingle, double and glazed

What SR2 doors are

SR2 is the entry level of the LPS 1175 forced entry range. The B3 test attacks the doorset for three minutes with tools such as screwdrivers, pliers and hand saws: the kit of an opportunist rather than a prepared intruder. The doorset must keep the attacker out for the full three minutes.

Like every LPS 1175 rating, SR2 covers the whole assembly. The leaf, frame, locks, hinges and fixings are tested together, and the doorset is supplied with third-party test evidence for the configuration ordered. The LPS 1175 guide sets out the full rating table.

SR2 is a real rating, not a label. A steel door that has never been tested to LPS 1175 is not an SR2 door, however heavy it feels. Ask for the test evidence for the exact doorset.

Picking the rating for sr2 security doors

SR2 suits doors where the risk assessment expects an unprepared attacker: plant rooms, stores, back-of-house doors and secondary entrances. Where the attacker is likely to arrive with better tools, move to SR3 and SR4 security doors instead.

How SR2 doorsets are built

The leaf is a folded steel shell with reinforcement at the lock, hinges and edges, sized to defeat three minutes of hand tool attack. The frame is steel, anchored to the wall structure, with fixings covered by the test scope. Multi-point locking is common, spreading the load so no single point can be prised in the time available.

Hinges are rated for the leaf weight and protected against pin removal. Cylinders resist drilling and snapping to the level the test demands. Glazed SR2 doorsets use attack-rated glass retained by a tested bead, so the vision panel matches the leaf. Every component is chosen because it sat in the tested assembly.

Combining sr2 security doors with other ratings

SR2 pairs well with a fire rating where a compartment door also needs forced entry resistance. The assembly is tested to EN 1634-1 and LPS 1175 as one doorset (see fire and security doors). For sites worried about quiet attack, LPS 2081 SRB covers three minutes with stealth tools and can be specified on swing doorsets (see swing security doors).

Where the building also needs vehicle protection at the boundary, rated doors work alongside tested barriers (see security bollards). State each rating at quote stage so the test evidence covers the combination.

Where SR2 doors are used

Retailers fit SR2 doorsets to stockrooms and service corridors (see high-value retail). Schools and colleges use them on plant rooms, IT suites and stores (see education). Offices and public buildings use them for back-of-house and riser cupboards. SR2 is the workhorse rating: specified wherever a standard commercial door is not enough but the threat does not justify SR3.

What sets the cost and lead time for sr2 security doors

Configuration drives the price of an SR2 doorset more than the rating itself. Double leaf costs more than single leaf; glazed more than solid. Hardware adds next: high-security cylinders, access control readers and panic hardware each carry supply and commissioning time. Powder coating in a special colour or a marine-grade system extends the factory programme.

Quantity matters. A run of identical doorsets moves quickly through manufacture; ten different sizes and hardware sets do not. Site factors close the list: restricted access, working around occupants and phased handovers. As with every page here, no prices are published; the quote follows the schedule.

How to specify SR2 doors

1. Name the rating. Write “SR2 (B3) to LPS 1175 Issue 8” in the door schedule.
2. Define the configuration. Single or double leaf, solid or glazed, swing direction.
3. Set the hardware. Lock type, cylinder standard, closer, and any access control.
4. Confirm the openings. Structural sizes and wall construction for each position.
5. Request test evidence. Ask for the third-party evidence covering the exact doorset.