Perforated, solid or grille: which shopfront security?
How solid shutters, perforated shutters, roller grilles and retractable grilles compare on security, visibility, planning and cost.
Shopfront security comes in four broad types: solid roller shutters, perforated or punched shutters, roller grilles with an open lattice, and retractable grilles that fold to the side. Each balances security, visibility, weather protection and planning differently.
Last updated 13 October 2026 by the Security Shutters UK team
When is a solid shutter the right choice?
Solid shutters give the most privacy and weather protection and suit higher-risk stock. They create a blank frontage at night, which is why councils resist them in conservation areas and busy shopping streets.
What do perforated shutters offer?
Perforated laths let light and displays show through while keeping most of the strength of a solid curtain. Micro-perforated laths look almost solid from a distance; punched laths give a clearer view. They are a common compromise on high streets.
Why choose a roller grille?
Roller grilles have an open lattice, so displays stay fully visible and air can pass through. Shopping centres often specify them. Small items can pass through the gaps unless polycarbonate infill is added.
Where do retractable grilles fit in?
Retractable grilles need no box and are usually fitted inside the glazing, which often avoids planning issues. They suit doors, rear entrances and smaller frontages, and leave the glass itself exposed.
- Most privacy and weather protection: solid shutter
- Best balance for high streets: perforated shutter
- Most visibility: roller grille
- No box, usually internal: retractable grille
- Tested security: rated versions of shutters and grilles
Sources
- Conwy County Borough Council: shop front security design guide
- North Yorkshire Council: shop front security guidance
This guide is general information, not legal advice. Rules can change, so check with your council, insurer or fire risk assessor where it matters.