What size spill kit do I need?
Question
What size spill kit should a UK workplace keep on site?
Short answer
The correct spill kit size depends on the maximum credible spill, the liquid type, container size, site layout, drainage risk, response time and whether staff can safely manage the incident. Many sites need a combination of spill kits, absorbent socks, drain protection and inspection records rather than one kit alone.
SERPRO practical guidance
Begin with the largest container or transfer operation in each area, then consider how far a spill could travel before staff respond. A small internal store may need a compact kit and socks, while a yard, loading area or fuel store may need larger oil-only equipment, drain covers and clear location signage. SERPRO’s spill kit calculator can help staff think through these practical factors.
Common mistake to avoid
Do not rely on a single central kit if the site is large or has several risk areas. Spill kits need to be close enough for staff to use quickly.
Related SERPRO products
Related SERPRO guidance
- Spill kit capacity explained
- Where should spill kits be located?
- All spill control questions and comparisons
External references
Author: SERPRO Ltd. Version: 1.0. Review date: 12 May 2026.
This guidance is general practical information only. It does not replace site-specific risk assessment, COSHH assessment, safety data sheets, waste classification or professional advice where required.