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Site, Traffic & Hoarding Signs

Construction Work Look Out for Overhead Hazards Sign Printing

from £51.39

Construction work look out for overhead hazards sign printing, made to order: a site safety sign that warns that something could drop from overhead. Sizes run from A1 (594 × 841 mm) up to A0 (841 × 1189 mm), on 3.5mm Correx, 3mm Dibond or 3mm Foamex.

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

If "Construction Work Look Out for Overhead Hazards" needs saying clearly, this is the sign, and construction work look out for overhead hazards sign printing is what we do. It warns that something could drop from overhead, and you will find it in loading areas, work at height, cranes and scaffolds.

The message

It reads "Construction Work Look Out for Overhead Hazards". White board, strong coloured header: the layout people expect to see at a site gate.

Putting it up

At the edge of the no-go zone under the work. Put the board at the site entrance where every visitor has to pass it.

Sizing your construction work look out for overhead hazards sign printing comes down to distance. Reading distance is worked out from the sign’s short side: about a metre for every 25 mm, the distance factor from ISO 3864-1. That makes A1 to about 24 m, 700 x 1000 to about 28 m and A0 to about 34 m. Anything read from a distance or a moving vehicle wants the larger sizes.

Construction work look out for overhead hazards sign printing: which material

There is a board for each kind of spot in our construction work look out for overhead hazards 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 Dibond, aluminium skins on a solid core, the one to pick for a sign that stays outside for years
  • 3mm Foamex, a rigid PVC foam board that screws or sticks up easily and is happiest indoors or out for a season

Correx for temporary jobs, Foamex for indoors, Dibond for anything staying outside for years.

One board with all the site rules saves a row of separate signs on the gate.

The Construction (Design and Management) Regulations 2015 expect the site rules and hazards to reach everyone on site, visitors included. A single board at the gate does that in one go.

Got artwork? Upload it. No artwork? Use the online designer, or our paid artwork service (1 design, 2 rounds of changes). Either way a person looks over the file first, free. Each construction work look out for overhead hazards sign printing job is printed to order and sent out from the UK. Delivery to a UK mainland address is £7.95, or free once the order passes £100 after any discount (artwork fees are not counted). The Highlands add £10, and addresses in Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, Scilly or the Isle of Wight get a quote. Full details are on the delivery page.

Also worth a look: site safety boards and everything in site, traffic & hoarding signs. Still weighing it up? Read the guide to safety sign colours.

Sizes and prices

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

Size3.5mm Correx3mm Dibond aluminium composite3mm Foamex
A1 · 594 × 841 mm
700 × 1000 mm
A0 · 841 × 1189 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.

MessageConstruction Work Look Out for Overhead Hazards
Sign typeSite safety
Materials3.5mm Correx, 3mm Dibond aluminium composite and 3mm Foamex
SizesA1 (594 × 841 mm), 700 × 1000 mm, A0 (841 × 1189 mm)
Viewing distanceA1: 24 m, 700 x 1000: 28 m, A0: 34 m
PrintFull colour, single sided
Made byMade to order and dispatched from the UK
SKUFP-SIT-063
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
A1 (594 × 841 mm)24 m
700 × 1000 mm28 m
A0 (841 × 1189 mm)34 m

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

Questions

Quick answers about construction work look out for overhead hazards sign printing.

Which size of Construction Work Look Out for Overhead Hazards sign can be read from across the room or yard?

Measure the distance first, then match it: 24 m calls for A1 (594 × 841 mm), 28 m calls for 700 × 1000 mm and 34 m calls for A0 (841 × 1189 mm). Traffic, dim corners or glare all justify going one size bigger. The largest, A0 (841 × 1189 mm), is the choice for wide open spaces.

Has ISO 7010 got a symbol for "Construction Work Look Out for Overhead Hazards"?

No, ISO 7010 has no pictogram for this exact message. So the sign is words only, set in the usual site board header layout.

Where is the best place to put the "Construction Work Look Out for Overhead Hazards" sign?

Put it at the edge of the exclusion zone underneath the work. Fix it where it will not be hidden by doors, deliveries or vehicles.

Does the law say I must put up a Construction Work Look Out for Overhead Hazards sign?

The Construction (Design and Management) Regulations 2015 expect site rules and hazards to reach everyone on site, visitors included. One board at the gate carrying several messages does that in a single place. Where signs go is set by your own risk assessment for "Construction Work Look Out for Overhead Hazards".

Can I buy more than one Construction Work Look Out for Overhead Hazards sign?

Yes, change the quantity before you check out; every sign is made to order. Need a big mix of different signs for a school, club or site? Use the Get a quote page. Spend £100 on goods (design fees are not counted) and UK mainland delivery is free; otherwise it is £7.95 once.

Is anything added to the price of the "Construction Work Look Out for Overhead Hazards" sign at checkout?

Only delivery, where it applies. What the page shows is what you pay for the goods at checkout. The £54.24 starting price for the "Construction Work Look Out for Overhead Hazards" sign is the full price of the goods. Spend £100 on goods (design fees are not counted) and UK mainland delivery is free; otherwise it is £7.95 once.

Why is the Construction Work Look Out for Overhead Hazards sign in these colours?

Site boards gather several safety messages under one coloured header. The "Construction Work Look Out for Overhead Hazards" sign uses that standard layout, so people read its meaning before the words.

Asked by buyers

How much will the Construction Work Look Out for Overhead Hazards Sign set me back?

£54.24 is where the Construction Work Look Out for Overhead Hazards Sign starts, set up as A1 (594 × 841 mm) and 3.5mm Correx on the Saver speed. Change the size, material, extras, quantity or speed and the total on the page moves straight away. The price you see is the price you pay at checkout, with delivery the only thing that can be added. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted).

If I buy the Construction Work Look Out for Overhead Hazards Sign today, when will it leave you?

As the page first opens, the speeds for the Construction Work Look Out for Overhead Hazards Sign are Express 2 working days, Standard 3 and Saver 5, counting Monday to Friday and skipping bank holidays. The count begins once we have your order and a file ready to print. A bigger size or a different material can move it by a day either way; each speed shows its own days as you choose. Tracking arrives by email on the day it ships, and the courier usually takes one to three working days from there.

Is delivery ever free?

It is £7.95 for the whole order, not per item, and free once the goods reach £100 after any discount code; design or artwork charges are left out of that £100. On its own the opening price of £54.24 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A mainland Highlands postcode puts a single £10 on the order. Northern Ireland has its delivery priced before you pay, and so do the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man. Before delivery, this site board costs from £54.24. On its opening option, Construction Work Look Out for Overhead Hazards Sign leaves us after 5 working days on Saver.

How do I choose between the board options for the Construction Work Look Out for Overhead Hazards Sign?

Start with where "Construction Work Look Out for Overhead Hazards" will live. The choices are 3mm Foamex, 3mm Dibond aluminium composite and 3.5mm Correx. Outdoors for years: Dibond, an aluminium composite that stays flat and weatherproof. Indoors, in a shop window or under cover: Foamex, a light and smooth foamed PVC, with the thicker sheets holding their shape better on big boards. A few weeks outside: Correx, a light and waterproof fluted polypropylene at the lowest price.

Can I leave this site board outside?

That depends on the board you pick for "Construction Work Look Out for Overhead Hazards". Dibond: yes, for the long term. Correx: yes, for temporary jobs, as it is waterproof. Foamex: indoors or in a sheltered spot, because weather and full sun can make it bow. Whatever the board, strong sun fades print slowly, so a long-term sign lasts better out of full sun. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx.

Where is the best spot to put up the Construction Work Look Out for Overhead Hazards Sign?

Count the entrances first: every one of them should have its own board. At each, mount it facing people as they arrive and high enough to read without stepping onto the site. Attach it to the hoarding, gate or Heras fencing so it stays put in a strong wind. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Before delivery, this site board costs from £54.24. On this page, Construction Work Look Out for Overhead Hazards Sign starts from £54.24.

How do people usually fix up this site board?

Mounting "Construction Work Look Out for Overhead Hazards" starts with a hole near each corner, then screws or cable ties. Correx usually goes onto a fence with cable ties, or onto stakes; a tie threaded through the flutes grips well. For smooth indoor walls you would rather not drill, foam tape or adhesive pads do the job. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx.

What information should a board like the Construction Work Look Out for Overhead Hazards Sign give people arriving on site?

It tells anyone walking in what the site expects of them: which PPE to put on, where to sign in, and which hazards and banned activities apply. Under the CDM Regulations 2015, workers and visitors should get clear information, and a board by the gate is the normal way to give it. Read the wording against your own site rules and risk assessment before ordering. Word for word, this site board says "Construction Work Look Out for Overhead Hazards".

How much does a 700 × 1000 mm site board cost?

From £68.54, with the cheapest settings and the Saver service. Material by material, it is 3.5mm Correx at £68.54, 3mm Dibond aluminium composite at £110.22 and 3mm Foamex at £79.34. 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. Before delivery, this site board costs from £54.24. Material choices for Construction Work Look Out for Overhead Hazards Sign: 3.5mm Correx, 3mm Dibond aluminium composite or 3mm Foamex.

Can a private person buy a single site board?

Yes. One is enough, and you do not need a business name or an account to check out. The opening price is £54.24, and any bank card will do. On its own the opening price of £54.24 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A person still checks your file before it is printed, just as for a big order. Before delivery, this site board costs from £54.24.

How much for the biggest size, A0 (841 × 1189 mm)?

From £89.90, with the cheapest settings and the Saver service. Material by material, it is 3.5mm Correx at £89.90, 3mm Dibond aluminium composite at £142.86 and 3mm Foamex at £103.58. 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. Before delivery, this site board costs from £54.24.

Is there a quicker turnaround for this site board?

Work back from the day you need it. Express takes 2 working days to get the Construction Work Look Out for Overhead Hazards Sign out, against 5 on Saver, and costs £72.32 on the opening option rather than £54.24. Add up to three working days for the courier, plus any time you need to finish the file. Cutting it fine? Put your date in the question box before you order.

I live in the Scottish Highlands. Will the Construction Work Look Out for Overhead Hazards Sign cost more to send?

The whole UK is covered. Outside it, sadly, we cannot deliver. Mainland addresses in the Highlands pay one extra £10 on the order, even when delivery would otherwise be free. For Northern Ireland, and for the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man, we tell you the delivery cost before you pay, so message us your postcode on the Contact page or our Get a quote page. Choose Saver and this site board leaves us after 5 working days; Express brings that down to 2. Before delivery, this site board costs from £54.24. On its opening option, Construction Work Look Out for Overhead Hazards Sign leaves us after 5 working days on Saver.

Will anyone look at my file before it is printed?

Every file gets a human check for size, bleed and resolution, and we contact you about any problem before printing. Nobody can know your details better than you, so double-check names, numbers and dates: we print what is supplied, and work begins once the order and file are confirmed. Make the artwork for this site board the same size as the one you order, such as A1 (594 × 841 mm). Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

Which file formats can I upload?

A PDF made at the size you ordered works best, with the fonts embedded or turned into outlines. AI, EPS and SVG are fine too, as are high resolution JPG, PNG or TIFF images. Word, PowerPoint or Canva designs can be used, but save them out as a full quality PDF where you can. Attach up to 3 files of up to 25 MB each on the product page, or order first and send them afterwards; we email you a link. Make the artwork for this site board the same size as the one you order, such as A1 (594 × 841 mm).

What thickness is the Construction Work Look Out for Overhead Hazards Sign, and does it feel sturdy?

For a rigid sign, the board sets the thickness: Correx at 3.5 mm, Dibond at 3 mm and Foamex at 3 mm. Foamex is a lightweight PVC foam board. Dibond has aluminium on both faces around a plastic middle, so it stays flat and firm but is easy to fix. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Nothing is printed ahead of time: each site board is made to order for you. On this page, Construction Work Look Out for Overhead Hazards Sign starts from £54.24.

Would the Construction Work Look Out for Overhead Hazards Sign be useful for builders and contractors?

For sites, extensions and renovations, look under Builders & Construction in the shop: the Construction Work Look Out for Overhead Hazards Sign is listed there. Prices begin at £54.24; 3 sizes are listed, starting at A1 (594 × 841 mm); the material choices are 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. People buying for that kind of work often add Caution Site Speed Limit 10 mph Site Banner or 24 Hour CCTV in Operation Site Banner. Put everything in one order and delivery is free at £100 or more.

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

Two good companions for it are Site Safety Rules Sign and 8 Message Site Safety Board. Each has a page of its own with every size, material and a live price, and picking one material for all of them makes the wall look like a matching set. Put the lot in a single basket and you pay one delivery charge, which drops to nothing when the goods reach £100. You will also find this site board in our Builders & Construction section. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

It gets dark early in winter. Can people still read the Construction Work Look Out for Overhead Hazards Sign in the evening?

Only if a light falls on it. The Correx, Dibond and Foamex versions are printed without any reflective or glow-in-the-dark layer. So for a church car park, a school path or a yard used on winter evenings, put it beneath a lamp that is already there, or add a light. If your risk assessment says a sign has to reflect or glow, buy that one from a firm that makes them. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Nothing is printed ahead of time: each site board is made to order for you.

Which material is cheapest for the Construction Work Look Out for Overhead Hazards Sign?

Taking the smallest size, A1 (594 × 841 mm), as the example: 3mm Foamex at £63.13, 3mm Dibond aluminium composite at £88.40 and 3.5mm Correx at £54.24. 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 site board costs from £54.24. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

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

Of course. Tell us three things: where this site board will go, whether it is for one day or for years, and your deadline. Send that through the question box on this page or the Contact page, and a member of the team will suggest options. If what you need is outside the options listed, the Get a quote page lets you describe it and get a price. Nothing is printed ahead of time: each site board is made to order for you. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

Can I buy the Construction Work Look Out for Overhead Hazards Sign and other products in the same basket?

Yes. Different products, sizes and quantities can all sit in one basket, each as its own line with its own options. Delivery is charged once for the whole order, £7.95 to the UK mainland, and it is free when the goods reach £100 after discount codes. If two items share a design, choose the option to reuse artwork from another basket item and there is no second artwork fee. Nothing is printed ahead of time: each site board is made to order for you. Before delivery, this site board costs from £54.24. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

Can I swap my file once I have paid?

It depends on timing. Until production begins, a new file can replace the old one, or the order can be cancelled with a full refund; once it has begun, nothing can be changed. Message us straight away on the Contact page with your order number. Items printed exactly as supplied or designed do not count as faulty, so check names, numbers and dates first. Nothing is printed ahead of time: each site board is made to order for you.

Our club needs a big batch of site boards, or an odd size. Can you price it?

Our Get a quote page is the place, and it also handles delivery to Northern Ireland and the islands. For anything the page cannot do, tell us the size, number, material, date and postcode on Get a quote, add a file if you have one, and we email a price back. Nothing is printed ahead of time: each site board is made to order for you. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all. On this page, Construction Work Look Out for Overhead Hazards Sign starts from £54.24.

Which cards do you take, and is paying online safe?

You pay by debit or credit card when you check out, and you can do it as a guest without making an account. Card details are handled by Stripe, a specialist payment company, so the full card number never reaches us or sits on our system. Printing starts after payment goes through and your file has been checked. If your group needs a price agreed before anyone pays, ask for a quote instead. Nothing is printed ahead of time: each site board is made to order for you. Before delivery, this site board costs from £54.24.

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

One checkout covers the lot. Add a basket line for every design, attach the right file to each, then pay once. You pay a single delivery charge of £7.95 for the whole order, or nothing if the goods add up to £100 or more. Repeating one design on another line? Choose the artwork choice that points to a file already in the basket, and no second design fee is charged. Nothing is printed ahead of time: each site board is made to order for you. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

Can I send this site board back if I no longer need it?

Not for a change of mind. This site board is made for your order, and goods made to your specification fall outside the 14-day cancellation right (reg. 28(1)(b) of the Consumer Contracts Regulations 2013). You can still cancel and get all your money back before production begins. Anything faulty, damaged or wrong is covered by the Consumer Rights Act 2015, and we reprint it or refund you. Nothing is printed ahead of time: each site board is made to order for you. Before delivery, this site board costs from £54.24. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

Can a volunteer order without setting up an account?

Yes. There is a guest checkout, so a one-off order does not need a login. Payment is by debit or credit card, processed by Stripe. The confirmation email that follows lists everything bought and what was paid, which helps when you claim the money back from the group. What the page shows is what the group pays, plus any delivery. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all. Nothing is printed ahead of time: each site board is made to order for you. On this page, Construction Work Look Out for Overhead Hazards Sign starts from £54.24.

Our treasurer needs a receipt for the accounts. What do we get?

Every order gets a confirmation email listing what was bought, the options chosen and the amount paid, and a club, school or small firm can file that as its record of payment. What you pay for this site board is the price shown on the page plus any delivery charge, nothing more. If your accounts need a particular kind of invoice, ask through the Contact page before you order and we will tell you what we can provide. Before delivery, this site board costs from £54.24. Nothing is printed ahead of time: each site board is made to order for you.

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

Yes. Treat it as a fresh order of the same item with the same settings, and attach the file you used last time. Keep a copy of the print file in a shared folder so whoever orders next year can find it. Change any details that have moved on, such as a new email address or this year's date, before uploading. Nothing is printed ahead of time: each site board is made to order for you. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

Who looks after me once I have bought the Construction Work Look Out for Overhead Hazards Sign?

You deal with FatPrint the whole way through. Once you order, somebody checks the artwork, the Construction Work Look Out for Overhead Hazards Sign is printed specially for your order, and a courier delivers it with a tracking link by email. Need to ask something along the way? Use the question box here or the Contact page and a real person answers.

Do I have to register before I can buy?

No. Guest checkout is fine, and card payments go through Stripe, so a debit card or a credit card both work. If you choose to open an account while checking out, My Account keeps your past orders. Guest or not, you get an email confirming the order and another with tracking once it is sent. Before delivery, this site board costs from £54.24. Nothing is printed ahead of time: each site board is made to order for you. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

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

Look everything over when it arrives. If something is damaged or missing, contact us within 48 hours through the contact form, with your order number and photos of both the item and the packaging. Please keep hold of it until we reply; we then sort out a reprint or a refund. Your legal rights stay the same, as the returns page sets out. Before delivery, this site board costs from £54.24. Choose Saver and this site board leaves us after 5 working days; Express brings that down to 2. Material choices for Construction Work Look Out for Overhead Hazards Sign: 3.5mm Correx, 3mm Dibond aluminium composite or 3mm Foamex.

Can the Construction Work Look Out for Overhead Hazards Sign carry wording in two languages, for example English and Welsh?

A community centre or a surgery often wants every visitor to understand a notice, and this sign can do that. Tick typesetting for £15, then give us your wording in each language, already translated, since translation is not something we do. You get one first draft and two rounds of changes. Keep the same symbol and sign colours so nobody misreads it. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all.

Will my logo colours come out the same as on screen?

Very close, but not always identical. A screen glows, print reflects light, so a small difference is normal. Sending CMYK artwork keeps it nearest; RGB is changed to CMYK before printing and the brightest greens, blues and oranges can look a touch flatter. For an exact brand colour, give us the Pantone reference and we get as close as the material allows. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all. On this page, Construction Work Look Out for Overhead Hazards Sign starts from £54.24.

I have never ordered printing before. Do I need to know the technical words?

No. A person on our team checks every file for size, bleed and resolution and tells you in plain words if anything needs changing. Or pick typesetting for £15 and we lay out your words and logo for you, with a first draft and two rounds of changes. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. Make the artwork for this site board the same size as the one you order, such as A1 (594 × 841 mm).

What if A0 (841 × 1189 mm) is still too small for the Construction Work Look Out for Overhead Hazards Sign?

The size list tops out at A0 (841 × 1189 mm), starting at £89.90. Anything bigger is priced on request: send the size, the material and how many through our quote form. A board over A0 counts as oversize for delivery, which adds £15 to the order once. Sizes for this site board go from A1 (594 × 841 mm) at the small end to A0 (841 × 1189 mm), 3 in all. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

Could the Construction Work Look Out for Overhead Hazards Sign go on a door, say an office or classroom door?

It can, held on with double-sided foam tape or a couple of screws. On a flat door, the 3mm Foamex board with foam tape on the back is a good alternative. Aim for eye height, either beside the door or on the side people push, so an open door does not hide it. Fire doors are different: ask the person responsible for the building before you drill into one. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx. For reference, Construction Work Look Out for Overhead Hazards Sign is listed in 3 sizes, the smallest being A1 (594 × 841 mm).

What is the safest way to clean this site board?

For "Construction Work Look Out for Overhead Hazards", warm water with a drop of washing-up liquid and a soft cloth, then rinse and dry. Avoid solvents, scouring pads and harsh cleaning products, as they can dull the print or lift it. Keep any spare boards lying flat to stop them bowing. For this site board, the material can be 3mm Foamex, 3mm Dibond aluminium composite or 3.5mm Correx.

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