Method Statement: Installation of Internal Metal Lockers, Electronic Digital Locks, and Integrated Bench Seating – Method Statement

Overview

This method statement details the end-to-end installation of internal metal lockers with electronic digital lock modules and integrated bench seating within changing rooms. It includes substrate/plinth preparation and leveling, locker unit setting out, ganging, wall-tie anchoring, electronic lock battery installation and master programming/calibration, timber bench slat fixing, alignment and performance checks, documentation, and handover.

Included Activities

• Pre-installation surveys, permits to drill, and substrate verification.
• Floor plinth preparation: grinding, patch repair, self-leveling screed application, and tolerance checks.
• Delivery, unloading, staging, unpacking, and inspection of lockers, benches, and accessories.
• Setting out, ganging (unit-to-unit connection), leveling/shimming, and fixing to plinths.
• Wall-tie/anti-tip anchoring to solid or framed substrates, including proof testing.
• Installation of integrated bench frames and timber slats/seat tops beneath lockers where specified.
• Installation and commissioning of electronic digital lock modules, batteries, programming and calibration.
• Alignment checks, door and latch functional testing, sampling tests, snag rectification, cleaning, protection.
• Compilation of QA/QC records, warranties, as-built drawings, lock schedules, training, and final handover.

Exclusions

• Builder’s work outside the plinth levelling stated above (e.g., major screed rework beyond localized leveling).
• MEP modifications, electrical wiring to mains, or IT integrations not expressly required by the lock manufacturer.
• Structural design of anchors beyond typical selection and proof testing; final design loads to be confirmed by the Engineer.

Tolerances and Performance Targets [Verify per project specifications]

• Plinth levelness: ±3 mm over a 2 m straightedge; local variation ≤2 mm over 300 mm.
• Locker plumb/level: ≤2 mm deviation over full locker height/width.
• Face offset between adjacent locker faces: ≤1 mm; door gaps uniform within ±1 mm.
• Bench seating height: 450 ±5 mm; slat spacing 8–12 mm; screw spacing 300–400 mm c/c.
• Anchor proof load: 1.5 × service load or 3 kN minimum (whichever governs), displacement ≤1.0 mm at proof load, no slip or damage.
• Digital lock commissioning: 100% pass on 10 operating cycles per door; sample 10% subjected to 100 cycles without fault.

• Approved submittals for lockers, benches, locks, anchors, batteries, and finishes.
• Confirm room readiness: walls and floors complete, MEP first/second fix complete, lighting operational, ambient conditions 10–30°C and RH 30–65% for timber stability [Verify per spec].
• Confirm plinth dimensions/locations vs. drawings; ensure structural capacity of substrates for fixing and imposed loads [Verify].
• Services scan and mark-out of walls/plinths (GPR/ferroscan/multidetector). Obtain Permit to Drill where required.
• Design confirmation for anchor types, embedment, edge distances, and load assumptions; method for framed partitions (locate studs/ply backing) [Verify per project].
• Calibrations in date for laser, torque wrench, pull tester; pre-use inspections logged.
• Deliveries scheduled; storage area dry, level, protected; acclimatize timber slats ≥24 h in room conditions.
• Task Briefing/RA/MS induction for all operatives; toolbox talk on manual handling and drilling hazards.
• Inspection and Test Plan (ITP) approved; WIR notifications issued in line with hold/witness points.
• Protection materials ready (floor, finished walls/fixtures).

Key Hazards and Controls

• Hazard: Drilling into hidden services (electric, water, fire systems)
• Likely consequence: Electrocution, flooding, system impairment.
• Engineering/procedural control: Mandatory wall scan (GPR/ferroscan/multidetector) and mark-out; review as-built MEP; Permit to Drill; trial holes with non-percussive drill where risk remains.
• Required PPE: Safety glasses, cut-resistant gloves, RPE (FFP2/3) when drilling, hearing protection.
• Collective preventive measure: Exclusion zone with barriers; lockout/tagout of nearby circuits if applicable.

• Inspection/permit/supervision: Permit to Drill, supervisor sign-off, pre-use tool checks. [Verify per project HSE plan and local regulations]

• Hazard: Silica dust and debris from drilling/grinding

• Likely consequence: Respiratory irritation, long-term illness.
• Engineering/procedural control: On-tool M-class extraction; wet suppression for grinding if compatible; vacuum cleanup (no dry sweeping).
• PPE: FFP3 respirators, goggles.
• Collective measure: Local exhaust ventilation; dust screens as needed.

• Inspection/permit/supervision: Equipment inspection log; RPE fit testing records.

• Hazard: Manual handling of lockers/benches (bulk, awkward shape)

• Likely consequence: Musculoskeletal injury, crush/pinch.
• Engineering/procedural control: Team lifts with handling aids (trolleys/dollies), route planning, keep doors removed/secured during carry.
• PPE: Safety footwear (S3), cut-resistant gloves, back support as needed.
• Collective measure: Mechanical aids, floor edge protection, keep routes clear.

• Inspection/permit/supervision: Manual handling briefing; supervisor oversight during moves.

• Hazard: Working at height (top fixings/anchoring)

• Likely consequence: Falls, dropped objects.
• Engineering/procedural control: Use podium steps with guardrails; 3-point contact; tool lanyards.
• PPE: Hard hats, non-slip footwear, harness only if using MEWP/where required.
• Collective measure: Exclusion zone below; toe boards on podiums.

• Inspection/permit/supervision: Pre-use access equipment inspection; WAH permit where required.

• Hazard: Sharp edges and power tools

• Likely consequence: Lacerations, eye injury.
• Engineering/procedural control: Deburr edges; use guards; correct bits/speeds; isolate tools before bit change.
• PPE: Safety glasses, gloves.
• Collective measure: Bench-mounted work area, clamp workpieces.

• Inspection/permit/supervision: PAT test and daily checks; competent users only.

• Hazard: Battery handling for locks

• Likely consequence: Chemical irritation/leak, short-circuit heating.
• Engineering/procedural control: Use OEM-specified cells; insert with correct polarity; do not mix old/new; store in original packs; collect spent cells in insulated container.
• PPE: Nitrile gloves for leakers, eye protection.
• Collective measure: Battery spill kit; designated container for WEEE.

• Inspection/permit/supervision: MSDS on site; waste consignment notes.

• Hazard: Noise/vibration from drilling

• Likely consequence: Hearing damage, hand-arm vibration.
• Engineering/procedural control: Low-vibration tools; limit exposure time; task rotation.
• PPE: Hearing protection (SNR per site assessment), anti-vibration gloves.
• Collective measure: Schedule noisy works off-peak; signage.

• Inspection/permit/supervision: HAV monitoring where required.

• Hazard: Fire risk from hot works (if any cutting required)

• Likely consequence: Fire, smoke.
• Engineering/procedural control: Avoid hot works where possible; if unavoidable, Hot Work Permit, fire watch, extinguishers.
• PPE: Flame-resistant gloves, eye/face protection.
• Collective measure: Remove combustibles; fire blankets.
• Inspection/permit/supervision: Hot Work Permit, fire watch log.

Note: All controls to be verified against the Project HSE Plan and local regulations. Conduct daily point-of-work risk assessments and toolbox talks.

• Waste segregation: Separate metals, timber, cardboard/packaging, plastics, and WEEE (locks/batteries). Use labeled containers; maintain consignment records.
• Battery/WEEE disposal: Collect spent/leaking cells in insulated, ventilated containers; dispose via licensed carrier in compliance with WEEE/RoHS. Keep SDS available.
• Dust and air quality: On-tool extraction; FFP3 for operatives; maintain negative pressure or dust screens where sensitive areas adjoin.
• Noise: Limit drilling/grinding to agreed hours; use low-noise bits; provide hearing protection and signage.
• VOCs/chemicals: Select low-VOC primers/adhesives where used; keep lids closed; spill trays for chemicals.
• Timber sustainability: FSC/PEFC certificates retained; avoid unnecessary offcuts via pre-measurement; return unused full-lengths to supplier where possible.
• Housekeeping: Keep walkways clear; immediate cleanup of debris; protect finished floors/walls with approved coverings.
• Energy use: Use battery tools where feasible; switch off idle equipment; maintain chargers/PAT.
• Water: If wet grinding used, capture slurry and dispose per site procedure (no discharge to drains).

QA/QC Approach

• Compliance with approved submittals, standards (BS EN 16121/16122, EN 1992-4, BS 8539), and OEM manuals.
• Inspections per ITP with defined hold/witness points. WIRs raised 24–48 hours in advance [Verify].
• Tool calibration control for laser, torque wrench, and pull tester; certificates on file.

Key Checks & Tolerances [Verify per project]

• Plinth levelness: ±3 mm/2 m; local variation ≤2 mm over 300 mm.
• Locker plumb/level: ≤2 mm deviation full height/width; face offset ≤1 mm; door gaps uniform ±1 mm.
• Bench: height 450 ±5 mm; slat spacing 8–12 mm; screws 300–400 mm c/c; countersink flush ±0.5 mm.
• Anchors: embedment/edge distance per design; torque per OEM; proof load per spec (≥1.5 × service or 3 kN min).
• Locks: 100% commissioning pass; cycle test results recorded; master codes sealed for client.

Records

• Setting-out records, plinth level surveys, delivery inspections.
• Anchor installation logs, torque logs, pull test certificates.
• Programming/commissioning sheets; serial-to-door schedule; spare key/card registers.
• Checklists (locker install, bench install, alignment), NCR/CAR logs, as-builts, O&M manuals, warranties.

Defect Management

• Snag list compiled after initial QA; corrective actions tracked to closure with re-inspection and sign-off.

• Approved shop drawings and coordination layouts (locker/bench/anchor details).
• OEM installation/commissioning manuals (lockers, benches, locks, anchors, SL compound).
• Risk Assessment & Method Statement (RAMS), permits (drilling, WAH, hot works if any).
• Calibration certificates (laser, torque wrench, pull tester), PAT records.
• Checklists: delivery, plinth level, locker install, bench install, alignment, functional tests.
• Anchor selection/design basis memo and ETA datasheets; torque charts.
• Programming/commissioning templates; lock serial-to-door schedule; sealed master credential record protocol.
• Waste management plan and WEEE/battery disposal procedure.
• Training materials and attendance records template.