Office Fit-Out RAMS Guide for UK Contractors

Key Topics in an Office Fit-Out RAMS

Phased occupation and floor-by-floor management

Office fit-outs commonly involve working on some floors of a building while other floors remain in occupation. The RAMS must describe the floor-by-floor interface: physical segregation at stairwells and lift lobbies, dedicated contractor access routes that do not pass through occupied areas, and the communication procedure with the building manager or tenant representative before works start on a new phase. Occupied floors must retain full access to fire exits, emergency lighting, welfare facilities, and first aid. The phasing programme and its health and safety implications must be communicated to tenants in occupied areas before each phase begins.

Services isolation for occupied floors

Office buildings share services vertically between floors — electrical risers, data cabling, HVAC ducts, sprinkler mains, and chilled water circuits. Isolating services for a fit-out floor without affecting occupied floors requires careful coordination with the building's Authorised Persons (electrical, mechanical, sprinkler). The RAMS must identify every service that passes through or adjacent to the fit-out area, confirm the isolation method and responsible AP for each, and describe the notification period for planned outages — typically 48-72 hours' written notice to tenants for any planned service interruption.

Dust and noise for active workplaces

Dust from cutting, grinding, and sanding in an occupied office building creates health risks for office workers on adjacent floors and can contaminate data centre environments and server rooms. The RAMS must specify dust containment (sealed hoarding, negative pressure where practicable, HEPA filtration for extract ventilation), working hours for noisy operations (agreed with the building manager and tenant), and daily air quality checks at the boundary of the work area. For any works adjacent to a server room or data centre, coordination with the IT manager is required before any works that could generate dust, static, or vibration in proximity to the equipment.

Manual handling in occupied buildings

Office fit-out involves the delivery and installation of large, heavy items — raised floors, partitions, furniture, AV equipment, kitchen units, and M&E plant. Manual handling routes through occupied areas must be planned and communicated to building management: corridor clearances, lift capacity and pad protection, stairwell restrictions, and banksman requirements in car parks and loading bays. Items exceeding 25 kg must have a two-person lift plan or a mechanical handling method specified in the RAMS. The risk of blocking evacuation routes during deliveries must be explicitly managed — no large deliveries should block fire exits even briefly.