Temporary fencing suits short-term, low-risk sites where the priority is marking a boundary and deterring casual trespass. Site hoarding, a solid barrier of at least 2 metres, is the correct and often legally expected choice wherever a site borders a public footpath, road, school, or any area with regular pedestrian traffic. The decision rests on three factors: risk to the public, site location, and project duration.
The Construction (Design and Management) Regulations 2015 require every UK construction site to be secured against unauthorised access, and HSE guidance document HSG151 expects the perimeter to match the level of risk. Hoarding erected on or over the public highway also needs a licence from the local council under Section 172 of the Highways Act 1980. The sections below explain how the two systems differ, what the rules demand, and how to make the right call. This guidance draws on the hands-on experience of Keep Safe & Secure Ltd in installing and maintaining both systems on live construction sites across the UK.
What the Rules Actually Demand
CDM 2015 places the duty on the principal contractor to prevent unauthorised people, particularly children, from entering the site. The regulations do not name a specific product; they demand a perimeter that is suitable for the hazards inside and the people outside. HSE inspectors apply that test in practice: a quiet rural compound may pass with mesh panels, while an excavation beside a school gate will not. Where the perimeter fails and a member of the public is injured, prosecution typically follows.
Location adds a second layer of rules. Any hoarding or fencing standing on the public highway requires a Section 172 licence, usually with conditions covering height, lighting, and pedestrian walkways. Large branded graphics on hoarding can also trigger advertisement consent under planning rules, so plain or project-information panels are the safer default. The stakes justify the effort: research cited by insurer Allianz Cornhill puts the cost of theft to the UK construction industry at around £800 million a year, and a Chartered Institute of Building survey found 92% of respondents had experienced theft on site.
How the Two Systems Compare
| Factor | Temporary Mesh Fencing | Site Hoarding |
| Construction | Steel mesh panels on rubber or concrete feet, joined with couplers | Solid timber or steel sheets fixed to a braced frame or posts |
| Typical height | 2 metres | 2.4 metres (2 metres minimum) |
| Best suited to | Short projects, low footfall, groundworks, utilities, events | Urban sites, long programmes, high footfall, demolition |
| Legal position | Acceptable where risk assessment supports open visibility | Expected by HSE near public areas; highway licence often required |
| Screening | None; site remains visible | Full visual and partial dust or debris screening |
| Security level | Deters casual entry; panels can be lifted or unclipped | Strong physical barrier; difficult to breach quietly |
| Installation | Hours; no ground fixing needed on most surfaces | Days; often needs post holes or ballasted frames |
| Relocation | Moved and re-set easily as the site changes | Fixed; alterations need planned work |
Where Mesh Fencing Performs Well
Mesh panels shine on fast-moving jobs: utility works, road maintenance, landscaping phases, and compounds that shift week by week. Open sightlines also let passing patrols and CCTV see straight into the site, which matters on locations monitored remotely overnight.
Bonus tip: Standard fencing clips undo with one spanner. On any site left unattended overnight, fit anti-tamper couplers and stagger the panel feet so two panels share each block; sites secured this way suffer noticeably fewer lifted-panel entries.
Where Hoarding Is the Only Compliant Option
Choose hoarding whenever the public passes within touching distance of the perimeter, when demolition or piling creates flying debris, or when the programme runs beyond a few months. Solid barriers also block the visibility of plant and materials, removing the window-shopping opportunity that drives most opportunist theft.
Bonus tip: A 2.4-metre hoarding acts like a sail. Ask the installer for wind-load calculations on exposed or coastal plots, and paint the boards within the first week; fresh graffiti attracts more graffiti, while an early anti-graffiti coating keeps cleaning to a wipe-down.
Key Specifications at a Glance
| Specification | Temporary Mesh Fencing | Site Hoarding |
| Standard panel size | Approx. 3.5 m wide x 2 m high | Sheets built to 2.4 m height as standard |
| Base or foundation | Rubber block or concrete feet; no excavation | Posts set in concrete, or freestanding ballasted frames |
| Fixings | Anti-tamper couplers recommended | Screwed sheeting on braced timber or steel framework |
| Access points | Pedestrian and vehicle gate panels clip in anywhere | Purpose-built lockable gates planned at design stage |
| Extras available | Debris netting, privacy scrim, stabiliser struts | Viewing windows, lighting, signage, anti-climb toppings |
| Design guidance | HSE HSG151 site security principles | Temporary Works Forum hoarding design guidance (TWf2012:01) |
What to Weigh Up Before Committing
Run through five points before ordering either system. First, duration: anything beyond roughly three months in a populated area usually justifies hoarding. Second, footfall: count who passes the boundary, including children on school routes. Third, ground conditions: sloping or soft ground complicates hoarding posts and may push the design toward ballasted frames. Fourth, wind exposure: open plots need engineered bracing for solid barriers. Fifth, licensing lead time, covered below.
Factor in crime risk as well. Direct Line Group recorded 44,514 tool thefts in the UK in 2023, a 5% rise on the previous year, and perimeter choice is the first variable insurers examine after a claim. A solid, well-lit boundary paired with monitored cameras changes how a site is assessed as a target.
Bonus tip: Section 172 highway licences can take several weeks to process in busy boroughs. Apply as soon as the site layout is drawn, not when the hoarding contractor is booked; a late licence stalls the entire mobilisation.
Perimeter Protection Handled by Keep Safe & Secure Ltd
Four services pair directly with the decisions covered above:
- Fencing and Hoarding Services – Supply, installation, and maintenance of mesh fencing and solid hoarding matched to site risk and licensing conditions.
- Security Guards – SIA-licensed officers controlling access points and protecting high-value plant during and outside working hours.
- Mobile Security Patrols – Scheduled and random perimeter checks that pick up lifted panels, damage, and attempted entry between shifts.
- CCTV Installation & Surveillance – Camera coverage designed around the perimeter line, giving remote eyes on mesh-fenced sites overnight.
Questions Asked Before Choosing
Is planning permission needed for hoarding
Not for the hoarding itself in most cases, but a highway licence applies on public land, and large advertising graphics may need separate consent. Confirm both with the local council before fabrication.
Can mesh fencing be used on a city-centre site
Only where a documented risk assessment shows the public faces no significant hazard, which is rare in dense urban settings. Most city councils and principal contractors specify solid hoarding as a condition of works.
How quickly can each system go up
A mesh perimeter for a typical plot is installed within a day. Hoarding usually takes several days once materials, ground fixings, and licences are in place, so it belongs on the mobilisation programme early.
Keeping the Perimeter Compliant Over Time
How often should the perimeter be inspected
Walk the full line at least weekly, and always after high winds or reported incidents. Log each inspection; the record proves compliance if the HSE ever asks.
What should happen when panels or boards are damaged
Isolate the breach immediately with spare panels or barriers, then repair within 24 hours. A visible gap invites both trespass and liability.
Does a highway licence need renewing
Yes. Licences run for fixed periods, and overruns without renewal can bring enforcement notices. Diary the expiry date alongside programme milestones.
When should fencing be upgraded to hoarding mid-project
Upgrade when the work changes character: demolition starting, deep excavation opening near the boundary, or footfall increasing after a nearby development opens. Reassess the perimeter at every phase change.
How is hoarding removed at project end
Take down sheets before frames, reinstate any post holes in the footway to the council’s specification, and photograph the reinstated surface. Highway authorities inspect before releasing licence obligations.
The Bottom Line
Match the barrier to the risk, not the budget line. Mesh fencing handles short, low-risk, changeable sites; solid hoarding protects the public, screens the works, and satisfies regulators wherever people pass close by. Check CDM 2015 duties, secure highway licences early, and inspect the line throughout the programme. Assess the specific site, its neighbours, and the length of the works before placing an order.
Speak to a Perimeter Specialist
For advice on the right barrier for a specific site, or a combined plan covering fencing, hoarding, patrols, and cameras, contact Keep Safe & Secure Ltd by email at info@keepsafesecure.com or by phone on +44 330 118 8340. A short conversation about the site layout and programme is usually enough to identify the compliant option.
