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Site, Traffic & Hoarding Signs

Warning Construction Site No Trespassing Sign Printing

from £26.07 ISO 7010 W001

Need "Warning Construction Site No Trespassing" on a wall, door or fence? Our warning construction site no trespassing sign printing does it: one clear sign that tells anyone without business there to stay out, in 3 sizes and 3 boards.

Turnaround
…Working out your price

Price is final, no surprises at checkout. UK delivery £7.95, free over £49.99 this week. 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.

Charity, school, club or place of worship? up to 10% off every orderBusiness? up to 5% off your first order

  • Free UK delivery over £49.99 this week
  • Dispatch from 2 working days
  • Printed in the UK

Overview

This warning sign tells anyone without business there to stay out. Typical homes for it are private land, plant rooms, compounds and building sites. Our warning construction site no trespassing sign printing is made to order in the size and board you choose.

Putting it up

On each gate and entrance, then at intervals along the boundary. Repeat the key signs along the hoarding so they can be seen from every approach, not just the main gate.

The right size for warning construction site no trespassing sign printing depends on the reading distance. Rule of thumb from ISO 3864-1: each 25 mm on the short side of the sign gives roughly a metre of reading distance. That makes A3 to about 12 m, A2 to about 17 m and A1 to about 24 m. Anything read from a distance or a moving vehicle wants the larger sizes.

What the sign says

It reads "Warning Construction Site No Trespassing". Yellow triangle, black border: the shape everyone reads as "watch out". The WARNING heading grabs attention, then the words underneath name the hazard.

Warning construction site no trespassing sign printing: which material

There is a board for each kind of spot in our warning construction site no trespassing sign printing range:

  • 3.5mm Correx, the fluted plastic board: light, waterproof and cheap to replace, which is why it is the site-sign favourite
  • 3mm Foamex, a rigid PVC foam board that screws or sticks up easily and is happiest indoors or out for a season
  • 3mm Dibond, aluminium skins on a solid core, the one to pick for a sign that stays outside for years

Short job, Correx. Indoors, Foamex. Long job outdoors, Dibond.

Site signs get knocked, splashed and blown about, so Correx or Dibond usually makes more sense on a live job than Foamex.

On a construction job the Construction (Design and Management) Regulations 2015 make the principal contractor responsible for keeping unauthorised people out, and boundary signs are part of how that is done.

Send a print-ready PDF, build it in the online designer, or pay for our artwork service (you get 1 design and 2 rounds of changes). Whichever you pick, a person checks the file before it prints. Every warning construction site no trespassing sign printing order is made to order and dispatched from the UK. We charge £7.95 to send it anywhere on the UK mainland, and nothing once your goods come to £100 or more after discounts. Mainland Highlands postcodes add £10; Northern Ireland, the islands, the Isle of Man, the Channel Islands, Scilly and the Isle of Wight are quoted. Full details are on the delivery page.

Close relatives: construction site signs and everything in site, traffic & hoarding signs. Stuck on the choice? Our guide to safety sign colours helps.

Sizes and prices

Smallest first. Tap a price to load that size into the buy box.

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 over £49.99 this week. Choose a price to load it into the price calculator.

Specs

Materials, sizes and finishing.

ISO 7010 referenceW001 (General warning sign)
MessageWarning Construction Site No Trespassing
Sign typeWarning
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 and dispatched from the UK
SKUFP-SIT-209
PriceFinal price shown in the configurator. No surprises at checkout.
DeliveryUK mainland £7.95 per order, free over £49.99 this week. 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.

Questions

Quick answers about warning construction site no trespassing sign printing.

How big should the Warning Construction Site No Trespassing sign be?

Think about the furthest point someone needs to read it from. For "Warning Construction Site No Trespassing", A3 landscape (420 × 297 mm) for readers up to 12 m away, A2 landscape (594 × 420 mm) for readers up to 17 m away and A1 landscape (841 × 594 mm) for readers up to 24 m away. Those distances assume ordinary light, so if it is gloomy or people are driving past, step up one size.

Is there a standard pictogram that says "Warning Construction Site No Trespassing"?

ISO 7010 has nothing specific to this message, so the sign uses the general warning symbol, W001, alongside the text.

Where is the best place to put the "Warning Construction Site No Trespassing" sign?

Put it at each gate and way in, then repeated along the boundary so it can be seen from any side. Check nothing will stand in front of it, like open doors, stacked stock or parked vans.

Am I legally required to display "Warning Construction Site No Trespassing"?

Under the Construction (Design and Management) Regulations 2015 the principal contractor has to stop unauthorised people getting onto the site. Signs at the boundary are part of how that is done. Where signs go is set by your own risk assessment.

Will the Warning Construction Site No Trespassing sign survive outdoors?

Yes, if you order it in Dibond or Correx; both cope with rain. Foamex is better kept indoors or somewhere sheltered. Pick the material in the options before you order.

Why is the Warning Construction Site No Trespassing sign in these colours?

A yellow triangle with a black edge always means a hazard is ahead. The "Warning Construction Site No Trespassing" sign uses that standard layout, so people read its meaning before the words.

Is the price shown for the "Warning Construction Site No Trespassing" sign the full price?

Yes, for the goods. The figure on the page is the one you pay at checkout. Postage to the UK mainland is £7.95 per basket, not per item, and free when your goods total £100 or more.

Asked by buyers

How cheaply can I get hold of the Warning Construction Site No Trespassing Sign?

Picked the way the page first loads, with A3 landscape (420 × 297 mm) and 3.5mm Correx, the Warning Construction Site No Trespassing Sign comes to £27.52. Any other mix of options, a faster turnaround included, gets its own price the moment you choose it, and that figure is what you pay at checkout. Only delivery is left to add. On its own the opening price of £27.52 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero.

Which turnaround speeds can I choose for the Warning Construction Site No Trespassing Sign?

Allow 5 working days on Saver, 3 on Standard or 2 on Express before the Warning Construction Site No Trespassing Sign is handed to the courier, based on the options the page opens with. Weekends and bank holidays are not counted, and nothing starts until the order is paid and the artwork is confirmed. Pick another size or material and the days beside each speed update, sometimes by a day. After it leaves us, the courier normally delivers in one to three working days and you get the tracking link by email.

Which size of the Warning Construction Site No Trespassing Sign can people read from further away?

Rough reading distances for "Warning Construction Site No Trespassing": about 12 m for A3 landscape, 17 m for A2 landscape or 24 m for A1 landscape. The rule of thumb behind them: each 25 mm of height buys roughly one metre of distance. If the light is poor, or people pass quickly on foot or at the wheel, go for the next size up. The figures use the distance factor from ISO 3864-1, and your own risk assessment should settle the final choice. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all.

Where is the best spot for a Warning Construction Site No Trespassing Sign?

Picture someone arriving at a building job, a house extension or a self-build plot who needs to see "Warning Construction Site No Trespassing". Fix it by the way in and right where the hazard begins, so nobody can reach the risk without walking past it. Give it decent light and a clear line of sight, with nothing parked, stacked or swinging open in front of it. Keep a short list of where each sign went: it slots into your risk assessment records and makes the odd walk-round check quick. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx.

What message is a Warning Construction Site No Trespassing Sign giving?

Start with the symbol on "Warning Construction Site No Trespassing". W001 is the ISO 7010 pictogram for general warning sign, so even someone without much English gets the gist at a glance. The design follows the warning sign pattern (a black-edged yellow triangle), used to flag up a hazard. That colour and shape code is laid down by the 1996 Safety Signs and Signals Regulations. Typical spots: a building job, a house extension or a self-build plot.

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

From £36.41, with the cheapest settings and the Saver service. Material by material, it is 3.5mm Correx at £36.41, 3mm Foamex at £42.91 and 3mm Dibond aluminium composite at £61.17. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Nothing is printed ahead of time: each sign is made to order for you. For reference, Warning Construction Site No Trespassing Sign is listed in 3 sizes, the smallest being A3 landscape (420 × 297 mm).

Could the total go up after I reach the checkout?

No surprises: what the page shows for this sign is the goods figure you pay at checkout. Delivery is the one extra, £7.95 to a UK mainland address, and it drops away when the goods reach £100 after discounts. Paid artwork help shows up as its own basket line, so you can check each amount before paying. Nothing is printed ahead of time: each sign is made to order for you. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On its opening option, Warning Construction Site No Trespassing Sign leaves us after 5 working days on Saver.

Can I mix different safety signs in a single order?

You can. Each sign gets a separate basket line, with whatever size and board suit it, and you pay once at the end. Delivery is charged per order, not per sign: £7.95 to the UK mainland, or free once the goods come to £100 or more. For "Warning Construction Site No Trespassing" the sizes are A3 landscape, A2 landscape and A1 landscape. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all.

How much for the biggest size, A1 landscape (841 × 594 mm)?

From £54.24, with the cheapest settings and the Saver service. Material by material, it is 3.5mm Correx at £54.24, 3mm Foamex at £63.13 and 3mm Dibond aluminium composite at £88.40. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

I am not a business. Can I buy just one sign?

Of course. Anyone can order, with no trade account and no minimum beyond one. Prices for the Warning Construction Site No Trespassing Sign begin at £27.52, checkout works without an account and you pay by card. Parents, clubs, churches and small shops order single items all the time. On its own the opening price of £27.52 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero.

Our event is close. Can the Warning Construction Site No Trespassing Sign be rushed?

Yes. Choose Express and the Warning Construction Site No Trespassing Sign can be on the way in 2 working days on the opening option, for £36.71, where Saver is £27.52 and takes 5 days. Then give the courier one to three working days, and send the artwork with the order, because the clock does not run until the file is sorted. If the date is really tight, message us on the Contact page before paying and we will tell you honestly.

Will anyone look at my file before it is printed?

Yes, a real person on our team opens every uploaded file and checks the size, the bleed and the resolution. If something is off, you hear from us before anything is made. We print what you send, though, so read the spelling, numbers and dates yourself as well. Making starts when the order and the file are both confirmed. Make the artwork for this sign the same size as the one you order, such as A3 landscape (420 × 297 mm). For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. For reference, Warning Construction Site No Trespassing Sign is listed in 3 sizes, the smallest being A3 landscape (420 × 297 mm).

How many pixels does a photo need to print well on this sign?

Close-up items need about 300 dpi at full size. So an A1 landscape (841 × 594 mm) layout wants about 9,933 by 7,016 pixels. Keep lettering and logos as vectors if you can. An image copied off a web page or a social post rarely has enough pixels; if yours looks likely to print soft, our file check flags it. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Someone else is putting our file together. How does it reach you?

Easiest route: they send the finished file to whoever placed the order, and it gets uploaded after ordering. Up to 3 files of 25 MB each are fine. They can also reach us through the Contact page, as long as they quote your order number so it lands on the right job. Production waits for the checked file, so a late file means a later dispatch date. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Can the wording on a Warning Construction Site No Trespassing Sign be changed, or our logo added?

Yes. To reword "Warning Construction Site No Trespassing" or add a logo, pick the typesetting option (£15) for your text and logo on a clean layout, or the design-from-your-brief option (£35), then send us the details. Both paid options include one first draft and two rounds of changes. Uploading your own print-ready file costs nothing, and someone on our team looks it over before printing. Leave the safety symbol and its colours untouched, though: altering them makes the meaning less clear. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx.

What thickness is the Warning Construction Site No Trespassing Sign, and does it feel sturdy?

That depends on the board you tick: Correx at 3.5 mm, Foamex at 3 mm and Dibond at 3 mm. Dibond feels stiff because a plastic core is sandwiched between two thin aluminium sheets, yet it is still simple to screw or stick up. Foamex is foamed PVC, so it weighs very little in the hand. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Before delivery, this sign costs from £27.52. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

We are putting up a full set of signs at our premises. Which ones sit well next to this one?

A school corridor, a shop floor or a club house rarely needs just one notice. Two that often go up beside this one: PPE Must Be Worn Sign and Safety Helmets Must Be Worn Sign. Keep every sign in one board type so the set matches, look up sizes and prices on each page, then check out once: one delivery charge for the whole basket, free over £100 of goods. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all.

It gets dark early in winter. Can people still read the Warning Construction Site No Trespassing Sign in the evening?

Not in pitch darkness. Pick Correx, Foamex or Dibond and it is the same story: nothing on this page reflects headlights or glows by itself. Fix it where a street light, porch light or security lamp already shines, or fit a small light above it. Where a risk assessment asks for photoluminescent or reflective signs, those need to come from a specialist maker rather than from us. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Before delivery, this sign costs from £27.52. On its opening option, Warning Construction Site No Trespassing Sign leaves us after 5 working days on Saver.

Will a Warning Construction Site No Trespassing Sign cope with rain and wind outdoors?

Rain is rarely the problem for "Warning Construction Site No Trespassing"; sunshine is. Every printed sign fades slowly in strong sun, so make a habit of checking outdoor ones and renew any that have faded too far. Dibond is the board to pick for a permanent outdoor home. Correx is waterproof and suits temporary outdoor use. Foamex copes with a covered spot but prefers life indoors. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx.

What is the easiest way to put up a Warning Construction Site No Trespassing Sign?

To mount "Warning Construction Site No Trespassing" on a wall, drill a hole near each corner of the board and screw it on with a washer under each head; stop once it feels snug, as Foamex in particular does not like being overtightened. Where drilling is not wanted, say on a painted door or a smooth wall inside, double-sided foam tape or sticky pads hold it well. The Correx version is simplest cable tied to a fence or fixed to a post. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx.

Does the material change the price of the Warning Construction Site No Trespassing Sign?

Taking the smallest size, A3 landscape (420 × 297 mm), as the example: 3mm Dibond aluminium composite at £47.58, 3mm Foamex at £32.83 and 3.5mm Correx at £27.52. Larger sizes follow a similar pattern, and the full grid sits in the size table further up the page. Think about where it is going first: a cheap material in the wrong spot can end up costing more. Before delivery, this sign costs from £27.52. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Do we legally have to display a Warning Construction Site No Trespassing Sign?

Your risk assessment answers that one for "Warning Construction Site No Trespassing". Where it shows a risk still remains after other steps, the 1996 Safety Signs and Signals Regulations say an employer must signpost it, and that applies to a cafe with two staff as much as a factory. Signs back up the other measures you take; they are never a substitute for them. The symbol on this sign follows ISO 7010, reference W001.

Can I send this sign back if I no longer need it?

If it arrives faulty, damaged or not what you ordered, yes: under the Consumer Rights Act 2015 we reprint or refund. A change of mind is different. Each order is made to your specification, and reg. 28(1)(b) of the Consumer Contracts Regulations 2013 takes those goods out of the 14-day right to cancel. Before production starts, though, you can cancel for all your money back. Before delivery, this sign costs from £27.52. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

I am not sure which options to pick for this sign. Can someone advise me?

Yes. Type your question into the box on this page and a real person replies. Mention where the sign will be used, how long you need it to last and the date you need it by. Answered questions may be shown on the page for other buyers, so leave personal details out of it. Private questions can go through the Contact page, and anything the options here cannot price can go through the Get a quote page. Before delivery, this sign costs from £27.52. Nothing is printed ahead of time: each sign is made to order for you. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

I have spotted a typo after paying. Can it be fixed?

Tell us quickly through the Contact page, quoting your order number. Before production starts we can take a corrected file, or cancel and refund the whole order. After that it cannot be changed. A print that matches your finished design or the file you sent is not a fault, so it pays to read every word and number before you order. Before delivery, this sign costs from £27.52. Nothing is printed ahead of time: each sign is made to order for you. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

Can I pay for the Warning Construction Site No Trespassing Sign by card as a guest?

Yes. Guest checkout is fine, and any debit or credit card works. Stripe processes the payment for us, which keeps your card number off our system entirely. We begin making this sign once the payment has cleared and the artwork is confirmed. Large or out of the ordinary jobs can be quoted first from the Get a quote page. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. Nothing is printed ahead of time: each sign is made to order for you. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

We need a few different designs. Do they each need their own order?

No. Each design goes into the basket as a separate line with its own file or online design, and you pay for them all in one checkout. Delivery is counted once for the whole order and costs nothing when the goods reach £100. If two lines share the same artwork, pick the artwork option that reuses a file already in your basket, so any design fee is only paid once. Before delivery, this sign costs from £27.52. Nothing is printed ahead of time: each sign is made to order for you. For reference, Warning Construction Site No Trespassing Sign is listed in 3 sizes, the smallest being A3 landscape (420 × 297 mm).

How do I work out how many Warning Construction Site No Trespassing signs to order?

Picture someone arriving for the first time. Every door they could come through, every approach to the risk and every corner where the route bends is a place for a sign. Large sites and long corridors usually need repeats, with bigger versions where people read from a distance. Put matching signs on a single basket line and raise the quantity; different sizes or materials go on lines of their own. Before delivery, this sign costs from £27.52. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On its opening option, Warning Construction Site No Trespassing Sign leaves us after 5 working days on Saver.

Who looks after me once I have bought the Warning Construction Site No Trespassing Sign?

FatPrint does, from start to finish. We take your order and payment, a person on our team checks your file, and the Warning Construction Site No Trespassing Sign is made to order for you rather than taken off a shelf. It then goes to you by courier, with tracking sent by email. Questions before or after ordering go through the box on this page or the Contact page, and a person replies.

I am ordering this sign for a school or charity. Do I need to open an account?

No account is needed. Guest checkout lets a parent, volunteer or club secretary order once and pay by debit or credit card through Stripe. The price you see is the price you pay at checkout, and the confirmation email you receive lists the items and the amount paid for your records. If the committee needs a price agreed before anyone pays, the Get a quote page is the better starting point. Nothing is printed ahead of time: each sign is made to order for you. Before delivery, this sign costs from £27.52. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

Next year we will want the same sign again. Is reordering easy?

Very. Choose the same product with the same options and upload the same file, and it is made again exactly as before. Save the final print file somewhere safe, as that makes a repeat order a two-minute job. Before you repeat it, read the wording again: dates, prices, opening times and contact details are the things that go out of date. Nothing is printed ahead of time: each sign is made to order for you. Before delivery, this sign costs from £27.52. Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

The parcel turned up damaged. How do I sort it out?

Take photos of the damage and the box it came in, then send them through the contact form within 48 hours of delivery, with your order number. Hold on to the item rather than posting it back; we reply and arrange a reprint or refund. This sits alongside your legal rights, which the returns page covers. Choose Saver and this sign leaves us after 5 working days; Express brings that down to 2. Before delivery, this sign costs from £27.52. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Can the Warning Construction Site No Trespassing Sign carry wording in two languages, for example English and Welsh?

Yes. Choose the typesetting option (£15) and send us the words in every language you want on it. That covers one first draft and two rounds of changes. We lay out the text exactly as you supply it but we do not translate, so have the translation done first. Leave the symbol and colours as they are, so the meaning is clear whichever language someone reads. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Make the artwork for this sign the same size as the one you order, such as A3 landscape (420 × 297 mm). Material choices for Warning Construction Site No Trespassing Sign: 3.5mm Correx, 3mm Foamex or 3mm Dibond aluminium composite.

Bleed and dpi mean nothing to me. Can I still get printing done?

Yes. You do not need any print knowledge to order the Warning Construction Site No Trespassing Sign. Send us your words and logo with the typesetting option (£15) and we build the layout, then you get a first draft and two rounds of changes. Whatever you choose, a real person looks at the file before printing.

Does a Warning Construction Site No Trespassing Sign come upright or wide?

"Warning Construction Site No Trespassing" is laid out in landscape format, available as A3 landscape, A2 landscape and A1 landscape. Wide layouts sit well on fences, over doorways and along corridors. Need it turned the other way? Choose one of the design options and we will rearrange it for you. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all.

What if A1 landscape (841 × 594 mm) is still too small for the Warning Construction Site No Trespassing Sign?

We can still help. Put the size you need, the material and the quantity into the quote request form and we will send a price. For reference, the listed range ends at A1 landscape (841 × 594 mm), and that size costs £54.24 or more. Bear in mind that anything past A0 goes by oversize courier, a one-off £15 on the order. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

The spot gets full sun all afternoon. Could this sign warp in the heat?

Foamex can, Dibond will not. A big, thin Foamex board warms up in direct sun and may bow, especially with fixings only at the corners. Dibond has aluminium faces and keeps its shape, so it is the sensible pick for a long-term outdoor sign. With Foamex, more fixings across a flat wall, or a thicker board, helps it stay straight. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Sizes for this sign go from A3 landscape (420 × 297 mm) at the small end to A1 landscape (841 × 594 mm), 3 in all. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Could the Warning Construction Site No Trespassing Sign go on a door, say an office or classroom door?

Start with the position: eye level, on the push side or on the wall next to the frame, so the message is still visible with the door open. Fix it with double-sided foam tape or screws. A 3mm Foamex board on foam tape also sits well on a flat door. On a fire door, get the go-ahead from whoever looks after the building before any screws go in. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

Can I cut this sign down to size, or drill fixing holes, at home?

Yes, with ordinary tools. For Foamex or Correx, a sharp craft knife and a straight metal edge work: a few light passes, then snap or cut through. Dibond has aluminium skins and needs a fine-toothed saw. Drill slowly with a standard bit and stay at least 10 mm from any edge. Any cutting removes some of the bleed, so plan the layout with that in mind. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx. Nothing is printed ahead of time: each sign is made to order for you. On this page, Warning Construction Site No Trespassing Sign starts from £27.52.

What is the safest way to clean this sign?

Treat "Warning Construction Site No Trespassing" gently: a soft cloth and soapy warm water, a rinse, then a dry. Strong cleaners, solvents and scourers can take the shine off the print or lift it, so leave them in the cupboard. Store spares flat, not leaning, to stop them bowing. For this sign, the material can be 3mm Dibond aluminium composite, 3mm Foamex or 3.5mm Correx.

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