Site Hoarding Installation in Newmarket - Step by Step

Why the process matters as much as the product

A site hoarding installation is not complicated, but each stage needs to be done in the right order and to the right standard. Rushing the early stages causes problems - poorly positioned posts, missed underground services, or gate openings that do not align with site access - that are expensive and time-consuming to fix once the hoarding is up. Understanding what a proper installation involves helps you ask the right questions of any contractor and know what to expect when the team arrives on site.

Stage one - the initial site assessment

Before any timber is ordered or any posts are driven, someone who knows what they are looking at needs to walk the proposed perimeter. This is not a five-minute job. The assessment covers the full perimeter line, the ground conditions along it, any obstructions such as drainage inspection covers or utility marker posts, and the fall across the site if the ground is not level.

The position of access gates is agreed at this stage, not retrofitted later. The assessor should identify where deliveries will arrive, where the site compound will be, and whether any section of hoarding will border a pavement or road. If it does, there may be a requirement to notify the local highway authority before erecting anything on or overhanging the public highway.

Ground conditions are assessed visually and, if there is any doubt, by probing. Soft ground, filled ground, or ground that has been disturbed by nearby excavation will need either deeper post embedment, concrete-filled post bases, or temporary steel foot plates rather than driven timber posts. Getting this wrong at the assessment stage means panels that shift under load later in the job.

Stage two - measuring and ordering materials

Once the perimeter is confirmed, materials are calculated. The standard approach is to measure the total perimeter length and divide by panel width to get the number of panels needed, then add posts at the appropriate centres. Gates are counted separately, and the gate construction is specified - single or double leaf, pedestrian or vehicle, locking mechanism.

Timber for site hoarding is typically treated softwood. The treatment is important: untreated timber in ground contact will begin to rot within months, particularly at the base where it is most exposed to moisture. Any materials ordered for a site hoarding job should be pressure-treated to at least Use Class 3, and ideally Use Class 4 for components in ground contact.

Panel height is confirmed at the ordering stage. The standard is 2.4 metres. If taller panels have been specified, longer posts are needed, and the bracing design needs to account for the additional wind load on a taller panel area.

Stage three - preparing the site before installation

On the day of installation, the area where posts will be driven or set needs to be clear. Any vehicles, skips, or materials stored along the perimeter line need to be moved. If the posts are going into made-up ground or the hoarding runs across a hard-standing, the installer needs to confirm in advance whether posts will be driven, set in excavated and back-filled holes, or fixed into proprietary foot plates.

A cable and service check should happen before any post goes into the ground. Utility plans for the site should be consulted, and on any site where the location of underground services is not certain, a hand-dig or CAT scan (using a cable avoidance tool) should precede any mechanical driving. This is not a bureaucratic precaution - hitting an electrical cable or a water main during hoarding installation is a serious incident.

Stage four - installing the posts

Posts are the structural element of a timber hoarding run. Everything else is only as good as the posts holding it up. Standard practice for 2.4-metre hoarding is to set posts at 2.4-metre centres, driven or set to a minimum of 600mm depth in firm ground. In softer ground, posts need to go deeper - 750mm to 900mm is not unusual. Posts should be checked for plumb as they go in, not adjusted after panels are fixed.

If the hoarding runs along a gradient, the panel heights are usually stepped in sections rather than following the slope continuously. This maintains a clean top line, gives consistent panel heights, and avoids the gap at the base that forms when a panel follows a slope and the low end sits above ground level.

Stage five - fixing the panels

Panels are lifted into position and fixed to the posts with structural screws or bolts, not nails. Nailed connections work loose over time and cannot be tightened; screwed connections can be checked and re-tightened if any movement occurs. Panels should bear tightly against each other at the joints, with no gap wide enough to see or reach through.

Any panel that does not sit flush to its neighbour - because of an inconsistency in post alignment, a high point on the ground, or a variation in panel size - should be corrected at this stage. A small gap at installation becomes a larger gap as the timber moves seasonally. Wedge fillets or additional framing members can be used to close problem joints without removing and repositioning posts.

Once the panels are fixed, the base of the hoarding is checked along its full length. Where the ground is not level and a gap exists between the panel base and the ground, that gap needs to be blocked or filled. Debris, water, and access can all pass through a base gap that looks trivial from a distance.

Stage six - gate installation and final checks

Gates are hung after the main hoarding run is complete, so the opening can be adjusted if the as-built position differs slightly from the plan. Gate posts need to be set more solidly than standard hoarding posts because they carry the dynamic load of a moving leaf as well as the static load of the panel weight. Double-leaf gates should swing clear of each other and close to a central rebate stop rather than meeting end-to-end, which allows them to be forced apart.

All locks and latches are tested before the installer leaves site. The client or site manager should be shown how to operate any locking mechanism and should be given any keys at handover, not left to chase them up later.

A final walk of the perimeter checks that every panel is secure, every gate operates, and no fixing points have been missed. Any signage required by site safety rules - hazard notices, emergency contact numbers, no-entry signs - should be fixed at this stage.

During the build - checks and maintenance

A hoarding that was solid on day one will not necessarily stay solid for the life of the project without attention. After periods of high wind, heavy rain, or frost, the perimeter should be walked and any loose panels or shifted posts identified and dealt with promptly. A panel that has moved but not fallen can usually be reset and re-fixed; one that has fallen needs full replacement and the root cause - usually a post that has lost its embedment - addressed at the same time.

On a long project, the base of timber panels in ground contact should be inspected every few months. Treated timber is resistant to rot but not immune to it, particularly on sites where ground water is present. Any section showing significant deterioration should be replaced rather than left.

Final stage - dismantling and clearing the site

Dismantling is the reverse of installation but requires its own care. Posts that have been in the ground for a long period can be difficult to extract without disturbing the surrounding ground, particularly on hard-standing or close to existing structures. The dismantling team should fill post holes flush with the surrounding surface, not leave open holes or raised concrete stubs.

Timber panels from a site hoarding can often be reused on another project if they have been properly maintained. Material that is beyond reuse should be disposed of correctly - pressure-treated timber cannot go to landfill as general waste and must be taken to a licensed facility.

Site hoarding in Newmarket - talk to us before you start

We cover Newmarket and the wider area from our base in Haverhill, working on sites ranging from single-dwelling refurbishments to commercial developments. If you are planning a project and need hoarding installed before work begins, call us with your perimeter length and start date and we will set out exactly what the job involves for your specific site.