4m Concave Flags – Built for Active Construction Sites
Need signage that holds up under pressure? Our 4m concave feather flags deliver consistent readability and professional impact in changing site conditions.
With their inward-curved base, these flags maintain a taut appearance and reduce motion—even in strong winds. Crafted from durable poly-fabric and printed using eco-solvent inks, they offer long-lasting clarity across distance. Great for use at public-facing areas, contractor site entrances, and temporary traffic points.
Each flag comes with a fibreglass pole and round water base, making setup quick and tool-free.
Flag Height 4000mm (4m) – suited for medium to large signage needs on-site.
Kit Contents Supplied with printed flag, fibreglass pole system, and stable water base. Single-sided with mirrored reverse.
What makes the concave flag different from other shapes?
The concave base shape keeps the fabric tensioned, meaning your message stays clear even in windy conditions.
Can I print health & safety messages?
Absolutely. These flags are widely used for PPE zones, directional signage, and H&S compliance messages.
Is next-day delivery available?
Yes. We offer next-day UK-wide delivery and same-day collection from our Bolton facility.
Are replacement graphics available?
Yes. You can reuse the pole and base with replacement flag graphics for different projects or updates.