Construction Site Signage: Durable Signs for Australian Building Sites

Construction signs on corflute (fluted polypropylene) are the standard signage format for Australian building sites, civil works, and temporary public infrastructure projects. Corflute, a fluted polypropylene board with a smooth printable face, is selected for this application because it is inherently weatherproof, resistant to impact, and printable in full colour for high-legibility safety and regulatory content.

The range covers three standard sizes: 600 x 450mm, 600 x 900mm and 900 x 1200mm. The 900 x 1200mm size is the large format standard for site-entry safety boards and regulatory compliance signs. Signs are available in 3mm and 5mm corflute, with the thicker option providing additional rigidity for larger formats or high-wind installation conditions.

Full-colour print means hazard symbols, safety pictograms, regulatory text, site-specific contact information, and company branding all reproduce clearly on the same sign. On an active site, legibility and durability are not optional. Construction signs need to communicate quickly to workers, contractors, and visitors who may be moving fast through an unfamiliar environment.

• Available in 600 x 450mm, 600 x 900mm and 900 x 1200mm
• 3mm corflute standard, 5mm available for larger formats and high-wind sites
• Full-colour print: hazard symbols, text, pictograms, and branding
• Weatherproof and UV-resistant, rated for outdoor site conditions
• Compatible with H-frame stands, corflute holders, cable ties, and fence fixings

The figures below are live order totals on this page for Custom Construction Signs with the default selection: Thickness 3mm, Printing One Sided, Cutting Rectangle, and No Eyelet. All prices are in Australian dollars and include GST.

• 600 x 450 mm: 1 for $30 ($30 each), 2 for $45 ($22.50 each), 5 for $97.50 ($19.50 each), 10 for $120 ($12 each)
• 600 x 900 mm: 1 for $39 ($39 each), 2 for $62 ($31 each), 5 for $117.50 ($23.50 each), 10 for $180 ($18 each)
• 900 x 1200 mm: 1 for $59 ($59 each), 2 for $96 ($48 each), 5 for $170 ($34 each), 10 for $280 ($28 each)

Standard delivery is $15 per order and express delivery is $60 per order, Australia-wide. Pickup from Oakleigh South, Victoria is available at no charge. Other sizes, options and quantities are priced live in the calculator on this page, and production time is 24 hours.

Corflute is a corrugated polypropylene board with a smooth face on each side. The fluted internal structure gives the board strength and rigidity while keeping the overall weight low, which is important on sites where signs are handled, repositioned, and moved between locations regularly. The 3mm thickness is the industry standard for most construction site signage applications; 5mm provides increased stiffness for large-format boards and locations with exposure to sustained wind.

Polypropylene does not absorb water. Unlike paper-based or cardstock substrates, corflute does not warp, soften, or delaminate when wet. This makes it reliable through rain events without the sign degrading mid-project. UV resistance extends the print life through extended outdoor exposure typical of multi-week or multi-month construction projects.

Corflute also handles the physical contact common on active sites. Minor impacts from equipment, tools, and passing personnel do not crack or split the board. When a sign is damaged beyond use, it can be replaced at low cost, and the affordability of the format makes periodic replacement practical for large site signage programs.

Construction signs are available in three standard sizes:

• 600 x 450mm: The closest standard size to A2, with similar area and able to run landscape or portrait. Suited to pedestrian-area hazard notices, information boards, and subcontractor identification.
• 600 x 900mm: The most popular standard size, slightly larger than A1, so it covers every A1 job. Common for PPE requirement notices, exclusion zone markers, and directional signage at access points.
• 900 x 1200mm: The large-format standard for site-entry safety boards and regulatory compliance signs.

Signs in 3mm corflute (fluted polypropylene) install into standard H-frame sign holders, cable-tie to chainmesh fencing, hoarding, and temporary barriers, or slot into corflute A-frame holders. The 5mm option provides enough self-support for use in sign holders without additional bracing in most wind conditions. For permanent mounting on posts or walls, the sign can be drilled and fixed with standard hardware without splitting the board.

For non-standard sizes, custom dimensions, or shaped signs, contact the team to discuss options and lead times.

Corflute construction signs suit any site or project where outdoor safety, compliance, and hazard communication are required and signage must withstand weather and physical site conditions. Common applications include:

• Building and residential construction: Site-entry safety requirements, PPE notices, exclusion zones, and subcontractor identification boards at house, apartment, and commercial building projects across all stages of construction.
• Civil and road works: Hazard communication, pedestrian diversion signage, traffic management information, and regulatory compliance boards for road, bridge, and infrastructure projects where signs must be weatherproof and easily repositioned.
• Demolition sites: Exclusion zone markers, asbestos and hazardous material warning signs, and emergency contact information boards at demolition sites where conditions change rapidly and signage needs to be updated quickly.
• Commercial fit-outs and refurbishments: Occupied buildings undergoing fit-out use construction signs to mark hazardous areas, direct occupants away from active work zones, and communicate safety requirements to staff and visitors unfamiliar with site conditions.
• Utilities and infrastructure works: Water, gas, power, and telecommunications projects use construction signs to communicate excavation hazards, service locations, and access restrictions to members of the public in urban environments.
• Local council and public works projects: Councils use compliant construction signs for footpath works, park and facility upgrades, and public infrastructure maintenance where regulatory signage is a legal requirement.

Construction sign printing here is a full-colour digital print onto 3mm or 5mm corflute fluted plastic, trimmed to 600 x 450mm, 600 x 900mm or 900 x 1200mm. Builders, site managers, civil contractors and owner builders send artwork, approve the proof we send back, and the boards print. Standard production for construction signs is 24 hours after your design proof is approved.

Builder signage tends to arrive as one of three jobs, and all three run through the same process:

• New site set-up: a full set of builders signs going up at once, usually a large site-entry board plus PPE and hazard signs at each access point. Order the entry board at 900 x 1200mm and the supporting signs at 600 x 900mm or 600 x 450mm.
• Replacement boards: single signs damaged or faded mid-project. Construction signs can be ordered in small quantities, including single signs, so a replacement does not need a minimum run.
• Multi-site rollouts: the same artwork printed for several active sites, with only the site address or contact panel changing. Send the list of sites with your enquiry and the team can quote it as one job.

Because print is full colour across the whole board, hazard symbols, safety pictograms, regulatory text, licence and permit numbers and your company logo all sit on the one sign at no extra cost. High-visibility backgrounds including safety yellow, orange, and red print at full saturation on the corflute face.

Artwork comes in as PDF (preferred), SVG, and Adobe Illustrator files with 3mm bleed. If you do not have finished artwork, the team can set the board out for you from the information you need to display. For the full picture of what Australian sites are expected to show, see our guide to construction site signs in Australia and the companion guide to construction site safety signage.

Most construction sites run more than one kind of board, and they are not interchangeable. The three sizes on this page map onto them directly.

• Project sign board (company signboard): the board at the site entrance carrying the principal contractor name, licence or permit number and a contact number. This is the one that needs to be read from the footpath or the road, so 900 x 1200mm is the size to order. Keep the contact number the largest element after the company name.
• Site notice board: the information board inside the site, typically in the shed or amenities area, holding site rules, emergency contacts, the site plan and current notices. 600 x 450mm suits a board people read standing in front of it; 600 x 900mm is the size for a larger board.
• Mandatory and PPE boards: hard hat, high-visibility and safety footwear requirements at every entry point. 600 x 900mm is the workhorse size here because it reads at walking pace from several metres.
• Subcontractor identification boards: trade name and contact details for each subcontractor on site. 600 x 450mm is the usual choice, and single signs can be ordered as trades come and go.

On construction sign board design, the two things that decide whether a board works are contrast and hierarchy. Dark text on a light ground or white text on a saturated safety colour both read well outdoors; mid-tone on mid-tone does not. Put the single most important line at the top at roughly twice the size of the body text, and resist filling the board edge to edge, because white space is what makes the top line findable at distance.

What a project signboard or site notice board is required to display varies by state and by the conditions attached to your development consent. AS 1319 (Safety signs for the occupational environment) governs the safety sign categories; the project and notice board content usually comes from your state regulator and your consent conditions. Our guide to construction site sign requirements sets out the categories and the state-by-state picture. Check Safe Work Australia and your state or territory regulator before you finalise artwork.

Construction signs are printed and dispatched from our Melbourne production floor at 23 Manton Road, Oakleigh South, Victoria. Artwork, proofing and approval all happen by email, so construction signage for a site in Sydney, Brisbane, Perth, Adelaide, Canberra, Hobart, Darwin or regional Australia runs on exactly the same process and the same timeline as a site in Melbourne.

Production is 24 hours after design proof approval, with delivery on top. Once dispatched, metro Melbourne, Sydney, Brisbane and Adelaide typically take 1-2 business days. Perth and regional areas take 2-4 business days. All orders ship with tracking.

If you are working to a site start date, a council inspection or a handover, send that date with your enquiry so the team can confirm the timeline fits before you order. For multi-site builders running work across several states, the same artwork can be printed and shipped to each site address on the one order.

Ordering construction signs Australia wide runs through the one Melbourne production floor, so the specification, the proof and the turnaround are identical wherever the site is. Regional and remote sites order exactly as metro sites do; only the transit leg changes.

Building site signs and construction site signs are the same boards under two names, and Australian sites use both interchangeably. What follows is the set most new building sites order at once, with the size that suits each job. Everything here prints on the same 3mm or 5mm corflute board in 600 x 450mm, 600 x 900mm or 900 x 1200mm.

• Site entry board, 900 x 1200mm. The principal contractor board at the gate carrying company name, contact number and permit or licence details. This is the only board on a building site that has to be read from the footpath or the road, so it takes the largest format.
• PPE and mandatory signs, 600 x 900mm. Hard hat, high-visibility and safety footwear requirements at each access point. 600 x 900mm reads at walking pace from several metres, which is what these need to do.
• Hazard and warning boards, 600 x 450mm or 600 x 900mm. Site-specific risks: excavation, overhead work, plant movement, live services. Order these last, once the site walk has told you what the actual hazards are.
• Site notice board, 600 x 450mm. The information board in the shed or amenities area holding site rules, emergency contacts and current notices. This size also suits a smaller crew or a second location.
• Subcontractor identification, 600 x 450mm. Trade name and contact details for each trade on site. There is no minimum order, so these can be added one at a time as trades come and go.
• Directional boards, 600 x 450mm. Deliveries entrance, site office, visitor parking, first aid and muster point. Larger building sites need more of these than most people plan for.

Order two or three spares of the mandatory safety signs while the job is on press. They are the boards most often knocked off fencing or damaged by plant, and a replacement ordered later costs more in delay than it does in printing.

Building site signage requirements are set by your state or territory work health and safety regulator and by the conditions attached to your development consent, not by the printer. Our guide to building site signs in Australia sets out the five sign categories and the state-by-state picture. Check Safe Work Australia and your state regulator before you finalise artwork.

A building company searching for job signage usually starts with building signs rather than construction signs, and the results split into two different products. One is a board that carries the company name for the life of the project. The other is a permanent sign on a finished building. This page supplies the project-duration building signage: printed corflute (fluted polypropylene) boards in 3mm or 5mm, cut to standard or custom sizes, full colour, one sided or double sided, waterproof and UV resistant, with no minimum order quantity.

Most of what a building company orders on this stock is custom building signs, and each one has to stay readable in weather and full sun. A principal contractor board carries the company's name, a phone number, and the relevant permit and licence reference. Building company signs on hoarding or temporary fencing keep the brand visible from the street. Commercial building signs on this board are project announcements and developer boards that tell the neighbourhood what is coming. A business building sign at the entry works as a wayfinding cue for subcontractors and deliveries. Building advertising signs do the same job: they promote the builder while the project is active, then they come down.

On a company or contractor board, the details that usually appear include:

• Company name, permit or licence number, and a contact phone number
• Company branding across hoarding and temporary fencing
• Project name or developer announcement text
• Subcontractor identification details
• Directional instructions
• Hazard, warning and mandatory PPE messages

If the project is complete and the sign needs to stay fixed to a wall for years, corflute (fluted polypropylene) is not the right material. A permanent exterior identification panel is a job for PVC signs, and indoor reception or architectural wayfinding is better on acrylic reception panels.

Construction signs in corflute cover the core safety and compliance signage needs on Australian worksites. For car park management, public space, and pedestrian zone signage where existing bollards are in place, bollard signs provide 360-degree visibility without a separate frame. For roadside and site-entry freestanding signage, corflute A-frames offer a frameless folding option made from one scored TEKflute sheet, while A-frame signs use a black powder-coated steel frame with 5mm corflute panels that slide in and print in full colour on both faces. The slide-in panels make A-frame signs a practical choice for site entry and amenities areas where messaging changes across project phases.

For temporary hoarding and fence-line signage in large format, vinyl banners are a weather-resistant option suited to cable-tying across wide hoarding spans. For permanent or semi-permanent outdoor mounting on posts and walls, PVC signs provide a rigid, durable substrate. Both options suit site identification and safety notices that remain in place for the duration of a project.