Site, Traffic & Hoarding Signs

Danger Construction Site No Trespassing Sign

SKU IB-SIT-069 ISO 7010 W001
From £28.97· UK delivery £7.95, free over £99

A Danger Construction Site No Trespassing sign keeps people who have no reason to be there out of the area. Sizes A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm) in 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

Turnaround
…Working out your price

Price is final. No VAT added. UK delivery £7.95, free over £99. Scottish Highlands +£10; islands and NI quoted.

Artwork

Design fees are fixed, shown as their own line in your basket, and cover the whole quantity of this item. You can also upload later: we email you after you order.

UK mainland delivery £7.95, free on orders over £99. Remote areas are quoted.

  • Every file checked before print
  • Final price, no VAT added
  • Secure card payment by Stripe
  • Checked by our Manchester team

Overview

The short answer, then the detail.

A Danger Construction Site No Trespassing sign keeps people who have no reason to be there out of the area. Sizes A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm) in 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite. UK mainland delivery £7.95, free over £99; no VAT added.

Use this sign where you need to say "Danger Construction Site No Trespassing" clearly. It keeps people who have no reason to be there out of the area, and is commonly fitted in building sites, compounds, plant rooms and private land. The design uses a yellow hazard triangle with a bold DANGER message.

By common convention the word DANGER is kept for hazards that could kill or seriously injure, so it stands out from routine caution signs.

Under the Construction (Design and Management) Regulations 2015 the principal contractor must take steps to prevent unauthorised access to the site, and safety signs are part of that. Keep a note of where each sign is fitted as part of your records.

For signs that stay outdoors for a long time, Dibond is the most durable choice. The options are 3.5mm Correx fluted polypropylene, light and waterproof, ideal for temporary and site signs, 3mm Foamex (rigid PVC foam board), light and easy to fix indoors or for short-term outdoor use and 3mm Dibond aluminium composite, rigid and weatherproof for long-term outdoor use.

Danger Construction Site No Trespassing Sign: sizes and materials

Choosing a size: we allow about 1 metre of viewing distance for every 25mm of sign height, based on the distance-factor method in ISO 3864-1. That gives A3 landscape (420 × 297 mm) (reads at about 12 m), A2 landscape (594 × 420 mm) (reads at about 17 m), A1 landscape (841 × 594 mm) (reads at about 24 m).

Where to put it: At every gate and entrance and along the boundary.

Artwork, file check and delivery

Every order for a danger construction site no trespassing sign gets a free file check by a person before anything is made. Depending on the size and material you choose, we print it in our Manchester workshop or our UK production partner makes it to order. UK mainland delivery is £7.95 per order, free on orders of £99 and over; see delivery for timings and areas. We are not VAT registered, so no VAT is added to the price shown.

More like this: construction site signs, or the full site signs range. Not sure which to choose? Read our guide to safety sign colours.

Prices by size

Popular sizes, smallest first.

Size3.5mm Correx3mm Foamex3mm Dibond aluminium composite
A3 landscape · 420 × 297 mm
A2 landscape · 594 × 420 mm
A1 landscape · 841 × 594 mm

Final prices per item with the lowest-priced options. UK delivery £7.95, free on orders over £99. Choose a price to load it into the price calculator.

Specifications

Materials, sizes and finishing for this product.

ISO 7010 referenceW001 (General warning sign)
MessageDanger Construction Site No Trespassing
Sign typeDanger
Materials3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite
SizesA3 landscape (420 × 297 mm), A2 landscape (594 × 420 mm), A1 landscape (841 × 594 mm)
Viewing distanceA3 landscape: 12 m, A2 landscape: 17 m, A1 landscape: 24 m
PrintFull colour, single sided
Made byMade to order by InstantBanners, Manchester, in our workshop or by our UK production partner, depending on the option
SKUIB-SIT-069
PriceFinal price shown in the configurator. No VAT is added.
DeliveryUK mainland £7.95 per order, free on orders of £99 and over. Scottish Highlands +£10; islands and NI quoted.
Artwork checkFree file check on uploaded artwork (resolution, size and bleed).

Which size do I need?

A safety sign must be large enough to read from where people will see it. Our conservative guide, based on the distance-factor method in ISO 3864-1, is about 1 metre of viewing distance for every 25 mm of sign height (the shorter side). Use it with your own risk assessment.

SizeReadable from up to about
A3 landscape (420 × 297 mm)12 m
A2 landscape (594 × 420 mm)17 m
A1 landscape (841 × 594 mm)24 m

Well lit or internally lit signs can be read from further away; dim areas need larger signs.

Who makes it

Made to order by InstantBanners, Manchester

InstantBanners is a sign and print shop in Manchester. We check your file will print well. Depending on the size and material you choose, it is printed in our Manchester workshop or made by our UK production partner.

  1. 01Your artworkUpload your print-ready file, or choose one of our paid design services.
  2. 02File checkA person checks uploaded files for size, bleed and resolution.
  3. 03Made to orderPrinted in our Manchester workshop or by our UK production partner, depending on the option, then sent to you.

Frequently asked questions

About danger construction site no trespassing sign.

What size Danger Construction Site No Trespassing sign do I need?

Pick the size by how far away people will read it. A3 landscape (420 × 297 mm) reads at about 12 m, A2 landscape (594 × 420 mm) reads at about 17 m, A1 landscape (841 × 594 mm) reads at about 24 m. These distances are a conservative guide for normal lighting.

Is there an ISO 7010 symbol for "Danger Construction Site No Trespassing"?

No ISO 7010 symbol covers this exact message, so the sign pairs the text with the ISO 7010 W001 general warning sign.

Where should the Danger Construction Site No Trespassing sign go?

At every gate and entrance and along the boundary. Make sure it is not hidden by doors, stock or vehicles.

Is a Danger Construction Site No Trespassing sign a legal requirement?

Under the Construction (Design and Management) Regulations 2015 the principal contractor must take steps to prevent unauthorised access to the site, and safety signs are part of that. Your own risk assessment decides where signs are needed.

Can I order several?

Yes. Set the quantity at checkout; each sign is made to order. For a large run of mixed signs, ask for a quote.

Is VAT added to the price?

No. We are not VAT registered, so no VAT is added to the price shown. UK mainland delivery is £7.95 per order, free on orders of £99 and over.

What does the colour of the sign mean?

The yellow triangle warns of a hazard and the word DANGER marks it as serious. This sign follows that layout.

Can I put the Danger Construction Site No Trespassing sign outside?

Yes, in Dibond or Correx. Foamex is best kept indoors or in sheltered spots.

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What customers say about our Manchester print shop on Google

5.0Google rating
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Questions

Buyer questions about this product, answered. Can't see yours? Ask below and our team will reply.

How far away can the Danger Construction Site No Trespassing Sign be read?

Work back from how far away people will be when they need to read it. Using our guide of about 1 m of viewing distance for every 25 mm of sign height: A3 landscape (420 × 297 mm) reads from about 12 m, A2 landscape (594 × 420 mm) reads from about 17 m and A1 landscape (841 × 594 mm) reads from about 24 m. In poor light, or where people are moving quickly, go a size up. The guide is based on the distance-factor method in ISO 3864-1; use it with your own risk assessment.

Which sizes can I order the Danger Construction Site No Trespassing Sign in?

The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) at £28.97 up to A1 landscape (841 × 594 mm) at £57.10. In between: A2 landscape (594 × 420 mm). Prices are the lowest option for each size.

Which material should I choose for the Danger Construction Site No Trespassing Sign?

It depends where it goes and for how long: 3mm Dibond aluminium composite is rigid and weatherproof, the one for long-term outdoor use and busy areas. 3mm Foamex is light and smooth, best indoors or in sheltered spots. 3.5mm Correx is light and waterproof, ideal for temporary signs on fences and sites.

I do not have artwork. Can you design it for me?

The Artwork choice on this page offers: "I will upload print-ready artwork" (free), "Add my text and logo to a clean layout (typesetting)" (£15), "Design it for me from my brief" (£35), "Redraw or vectorise my logo from a low-res file" (£50) and "Design a new logo for me" (£100). Design fees are fixed, show as their own line in the basket and cover the whole quantity of that item. Typesetting includes 1 proof and 2 rounds of changes; design from your brief includes 1 design and 2 rounds of changes. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

How much does the Danger Construction Site No Trespassing Sign cost?

The Danger Construction Site No Trespassing Sign starts from £28.97 with size A3 landscape (420 × 297 mm) and material 3.5mm Correx on the Saver turnaround. The price in the calculator changes live as you pick the size, material, finishing, quantity and turnaround, so you see the final price before you add to basket. No VAT is added because we are not VAT registered. Delivery is added at checkout: UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it).

How long does the Danger Construction Site No Trespassing Sign take to make?

On the option the calculator opens on, Saver is ready to dispatch in 5 working days, Standard in 3 and Express in 2. These are working days to dispatch, counted from when your order and artwork are confirmed, and other sizes or materials can take a day more or less: the calculator shows the exact days next to each turnaround. Courier delivery usually takes 1 to 3 working days after dispatch, and we email the tracking details when the parcel leaves us. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

Do you charge for delivery?

UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it), so one sign at £28.97 on its own pays £7.95, and the charge disappears once your basket reaches £99. Mainland Scottish Highlands postcodes add £10 once per order. Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, the Isles of Scilly and the Isle of Wight are quoted before you order.

What type of sign is the Danger Construction Site No Trespassing Sign?

"Danger Construction Site No Trespassing" is a danger sign, warning of a serious hazard. It carries the ISO 7010 W001 symbol (general warning sign), so people understand it even if they do not read English. The colours and shapes follow the scheme set out in the Health and Safety (Safety Signs and Signals) Regulations 1996.

How thick is the Danger Construction Site No Trespassing Sign?

The board options are 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite, so the board version is as thick as the figure in its name. Dibond is two thin aluminium skins with a plastic core, so it is rigid but still easy to fix. Foamex is a light foamed PVC board.

Will the Danger Construction Site No Trespassing Sign show up at night?

Only where there is light on it. We print on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite, which are not reflective or glow in the dark. For car parks, yards and routes used after dark, position signs under existing lighting, or light them. Where your risk assessment calls for reflective or photoluminescent signs, you will need a specialist supplier.

How do I fix the Danger Construction Site No Trespassing Sign to a wall or fence?

Foamex and Dibond boards can be screwed to a wall through holes drilled near the corners; use washers and do not overtighten, especially on Foamex. On smooth indoor walls and doors, double-sided foam tape or adhesive pads avoid drilling. Correx is best cable tied to fencing or fixed to posts. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

Do you check my file before printing?

Yes. A person from our team checks every uploaded file for size, bleed and resolution, and tells you if something needs fixing before anything is made. We print what you supply, so check spelling, phone numbers and dates yourself too. Production starts once your order and artwork are confirmed. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

What resolution does my artwork need for this sign?

For items read close up, aim for 300 dpi at the finished size. At 300 dpi an A1 landscape (841 × 594 mm) design needs about 9,933 × 7,016 pixels. Logos and text are best as vector artwork, which stays sharp at any size. Photos taken from websites or social media are usually far too small; our file check flags images that may print soft.

Can I order now and send my artwork later?

Yes. You can upload your file on the product page, or place the order and upload later: we email you after you order. Your designer can send the file to us by email or WhatsApp with your order number, so it does not have to come through you. The turnaround clock starts once your order and artwork are confirmed, so send the file early if you have a deadline. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

Can I change the wording or add my logo to the Danger Construction Site No Trespassing Sign?

Yes. Choose "Add my text and logo to a clean layout" (£15, 1 proof and 2 rounds of changes) or "Design it for me from my brief" (£35) in the Artwork options and tell us what you need. You can also upload your own print-ready file at no charge, and a person checks it before printing. Keep safety symbols and colours as they are: changing them can make the sign harder to understand. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

What happens if my file is not good enough to print?

Our file check catches the usual problems: the wrong size, no bleed, low resolution images and text too close to the edge. We tell you what needs fixing before anything is printed, and you can send a new file. If you would rather we sort it, the typesetting option (£15, 1 proof and 2 rounds of changes) sets your text and logo on a clean layout. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

What file should I upload?

A PDF at the finished size is best, with fonts embedded or converted to outlines. We also take AI, EPS and SVG, and high resolution JPG, PNG or TIFF files. Word, PowerPoint and Canva files are fine as a starting point, but export a full-quality PDF if you can. You can upload up to 3 files of 25 MB each on the product page, or upload later: we email you after you order. For the Danger Construction Site No Trespassing Sign, set your file up at the size you order, for example A3 landscape (420 × 297 mm).

Will the price change at checkout?

Only delivery is added. The goods price you see in the calculator is final, with no VAT added. UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it). Any artwork or design fee you choose shows as its own line in the basket, so you can see exactly what you are paying for. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

How much is an A2 landscape (594 × 420 mm) sign?

A A2 landscape (594 × 420 mm) sign starts at £38.33 on the lowest priced options and Saver turnaround. Pick that size in the calculator to see the price with your own material, finishing and turnaround. By material: 3.5mm Correx £38.33, 3mm Foamex £45.17 and 3mm Dibond aluminium composite £64.39. UK mainland delivery is £7.95, free once your basket reaches £99.

Can I pay for express production on the Danger Construction Site No Trespassing Sign?

Yes. Express makes this sign ready to dispatch in 2 working days on the opening option, priced at £38.64 against £28.97 on Saver (5 days). To plan back from a date, add 1 to 3 working days for the courier after dispatch and allow for artwork: production starts once your order and artwork are confirmed. If the date is very tight, call 0161 315 1151 before you order.

Do you deliver Danger Construction Site No Trespassing Sign to the Scottish Highlands?

Yes, with a difference in price. Mainland Scottish Highlands postcodes, for example around Inverness, Fort William, Oban and Thurso, pay the mainland rate plus £10 once per order, even when the order qualifies for free delivery. Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, the Isles of Scilly and the Isle of Wight are quoted before you order: use Get a quote or call 0161 315 1151. We do not deliver outside the UK. On the opening option, the Danger Construction Site No Trespassing Sign is ready to dispatch in 5 working days on Saver or 2 on Express.

How do the material prices compare on the Danger Construction Site No Trespassing Sign?

At A3 landscape (420 × 297 mm): 3.5mm Correx £28.97, 3mm Foamex £34.56 and 3mm Dibond aluminium composite £50.09. The gap stays similar on bigger sizes, which the Prices by size table on this page shows in full. Choose on where the sign goes rather than price alone: the cheapest material is not always the one that lasts in that spot.

What other signs go with the Danger Construction Site No Trespassing Sign?

Signs that are often needed alongside it include Unauthorised Entry to This Site Sign, No Hat No Boots No Job Sign, Permit to Work Must Be Obtained Sign and No Admittance Without PPE Sign. Each has its own page with sizes, materials and live prices, and ordering them in the same material keeps a set looking consistent. Add them to one basket: delivery is charged once, and it is free once the goods total reaches £99. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

Is the Danger Construction Site No Trespassing Sign portrait or landscape?

This design is landscape, in A3 landscape (420 × 297 mm), A2 landscape (594 × 420 mm) and A1 landscape (841 × 594 mm). Landscape suits wide spaces such as fences, above doors and along corridors. If you need the other way round, choose a design option and we will lay it out for you.

Can I get the Danger Construction Site No Trespassing Sign bigger than A1 landscape (841 × 594 mm)?

The largest listed size is A1 landscape (841 × 594 mm), from £57.10. For a bigger sign, use Get a quote with the size, material and quantity, and we will price it. Boards larger than A0 travel as oversize items, which adds £15 once per order.

Can I put the Danger Construction Site No Trespassing Sign on a door?

Yes, fixed with double-sided foam tape or screws. A 3mm Foamex board with double-sided foam tape also works well on a flat door. Place it at eye level on the push side or beside the door, where it is not hidden when the door is open. If the door is a fire door, check with whoever manages it before screwing anything into it.

Will this sign be easy to read for people with poor sight?

Strong contrast, a plain bold typeface and a size to suit the viewing distance make the biggest difference. Our standard safety sign designs use the high-contrast colour pairs set by the safety sign scheme. Place signs at eye level, well lit and without glare, and keep the wording short. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

Will my brand colours print exactly?

Supply CMYK where you can. RGB files are converted to CMYK for print, which can make very bright greens, blues and oranges look slightly duller. If you need a brand colour matched, give us the Pantone reference and we match it as closely as the material allows. Small differences between a screen and the printed item are normal, because screens give off light and print reflects it. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

Where is the Danger Construction Site No Trespassing Sign made?

The Danger Construction Site No Trespassing Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material. Either way, InstantBanners takes the order, checks your file and deals with you from start to finish, and the item is delivered to you by courier. You can reach our Manchester team on 0161 315 1151 or WhatsApp if you have a question before or after you order.

Can someone help me choose the right options for this sign?

Yes. Call us on 0161 315 1151 or message us on WhatsApp and tell us where the sign will go, how long it needs to last and your deadline. You can also ask a question on this page; our team answers and the question may be published to help other buyers. For a price on something the calculator does not cover, use Get a quote. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

Can I return this sign if I change my mind?

No. This sign is printed to your order, and the 14-day right to cancel does not apply to goods made to your specification (Consumer Contracts Regulations 2013, regulation 28(1)(b)). You can cancel for a full refund before production starts. If an item is faulty, damaged or not what you ordered, your Consumer Rights Act 2015 rights apply and we reprint or refund. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

How do I pay?

By debit or credit card at checkout. Payments are processed securely by Stripe, and we never see or store your full card number. Your order goes into production once payment is taken and your order and artwork are confirmed. For a large or unusual order you can ask for a quote first. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

Can I reorder the same sign later?

Yes. Order the same product and options again and upload the same file. Keep your print-ready file safe so a repeat order is quick. If anything like a phone number or price has changed, update the artwork before you reorder. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

Can I get a quote for a large order or an unusual size of the Danger Construction Site No Trespassing Sign?

Yes. Use the Get a quote page and tell us the size, quantity, material, deadline and delivery postcode, and attach any artwork you have. We reply by email or WhatsApp with a price. A quote is also the way to go for delivery to Northern Ireland and the islands. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

How many Danger Construction Site No Trespassing signs do I need?

Walk the route people take and put a sign wherever someone needs the message and would otherwise miss it: each entrance, each approach to the hazard and each change of direction. Larger areas usually need the same sign more than once, in the size that suits each viewing distance. Add them all as one line with a quantity, or as separate lines if you need different sizes or materials. The Danger Construction Site No Trespassing Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.

Do I need an account to order?

No. You can check out as a guest and pay by debit or credit card, processed securely by Stripe. Creating an account at checkout lets you see past orders in My Account. Either way you get an order confirmation email and a tracking email when your order is dispatched. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

Can I get a VAT invoice?

No. We are not VAT registered, so we do not charge VAT and cannot issue a VAT invoice. You get an order confirmation email with the items, options and total paid, which works as your receipt. Because no VAT is added, the price you see in the calculator is the price you pay for the goods, with delivery shown at checkout. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

Can I change my artwork after ordering?

Contact us straight away on 0161 315 1151 or WhatsApp with your order number. If production has not started we can take a corrected file, or cancel the order and refund you in full. Once production starts the order cannot be changed. Printing that matches the design you approved or the file you supplied is not a fault, so check spelling, phone numbers and dates carefully before you order. The Danger Construction Site No Trespassing Sign comes in 3 listed sizes, from A3 landscape (420 × 297 mm) to A1 landscape (841 × 594 mm).

What if my order arrives damaged?

Check it when it arrives. If anything is damaged or missing, tell us within 48 hours with photos of the item and the packaging, through the contact form or on WhatsApp, with your order number. Do not send anything back until we reply; we then arrange a reprint or a refund. This does not affect your legal rights, which the returns page explains. The Danger Construction Site No Trespassing Sign starts at £28.97 before delivery.

How do I clean this sign?

Wipe with a soft cloth and warm, soapy water, then rinse and dry. Do not use solvents, scouring pads or strong cleaners, which can dull or lift the print. Store spare boards flat so they do not bow. The Danger Construction Site No Trespassing Sign is printed on 3.5mm Correx, 3mm Foamex and 3mm Dibond aluminium composite.

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