Flash Safety
Warning Constructions activities in progress Sign
Warning Constructions activities in progress Sign
Prices exclude VAT — VAT added at checkout
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Bulk discounts — applied automatically at checkout
| 10–24 signs | 5% off your order |
| 25+ signs | 10% off your order |
| Trade account | Up to 30% off — apply here |
Mix and match any signs — quantities count across your whole order.
- UK made & held in stock
- Free UK delivery over £50
- Same-day despatch before 12 noon
Warning Constructions activities in progress hazard safety sign. Complies with current UK / ISO 7010 safety signage standards. Ideal for construction sites, workplaces, factories and public premises.
Available in three sizes (200 x 300mm, 300 x 400mm, 400 x 600mm) and three materials: self-adhesive vinyl (indoor), 1mm rigid plastic (indoor/outdoor) and 3mm aluminium composite (premium outdoor). UK manufactured and held in stock for fast dispatch.
Size & material guide
Size & material guide
Sizes
200 × 300mm — doors and internal walls
300 × 400mm — corridors, gates and workshops
400 × 600mm — site entrances, car parks and long viewing distances
Materials
Self-adhesive vinyl — peel and stick, best indoors on smooth surfaces
1mm rigid plastic — screw or pad fix, indoor and outdoor use
3mm aluminium composite — premium rigid panel for harsh outdoor conditions
Delivery & returns
Delivery & returns
Free UK delivery on orders over £50 (£6.50 standard below that). Stock signs ordered before 12 noon are despatched the same working day. Returns accepted on unused stock signs — see our returns policy for details.
Compliance & quality
Compliance & quality
Designed to BS EN ISO 7010 and BS 5499 safety signage standards. UK manufactured. Aluminium composite signs carry a 5-year UV print warranty.
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