Matt Black Mailer Boxes Printed to Your Inside Size
A matt black mailer box is corrugated board printed in a solid black flood across every outer panel, then sealed with a matt or gloss varnish; matt gives the soft, low-shine surface most sellers want. It suits jewellery, grooming, candles and gift sets where a dark box gives the parcel a quiet, finished feel.
From £0.25 a box exact price on a written quote, within one working day
- Free design proof before anything is printed
- Production takes 4 to 6 working days after proof approval
- Free tracked UK mainland delivery in 2 to 3 working days
- Misprints or damage reported within 10 days with photos are reprinted or refunded
- Low minimums, quoted per job
Specification
What matt black mailer boxes from us are made of and how they are measured. Anything not listed here, ask in the quote.
| Style | Roll-over lid mailer with tuck-in front and side dust flaps |
|---|---|
| Board | Brown kraft or white-lined, E-flute 1.5 mm or B-flute 3 mm |
| Size range | 100 x 80 x 30 mm to 600 x 450 x 450 mm, inside |
| Typical start | 250 x 180 x 80 mm inside, set to your item |
| Full colour black flood outside; inside plain or printed | |
| Finish | Matt or gloss varnish over the black |
| Inserts | Die-cut board inserts, dividers and paper void fill, quoted with the box |
| Supplied | Flat, creased and bundled |
| Price | From £0.25 a box; exact price depends on size, board, print and quantity |
How to measure for a matt black mailer box
Measure the packed contents at the longest, widest and deepest points, including any insert or tissue. Add 3 to 5 mm to each figure so the black lid closes without stretching the print across a bulge.
Send those numbers as the inside size. Name the postal band if it matters and we will keep the outside within it.
Which board for which job
E-flute at 1.5 mm gives the flattest surface for a black flood, so the box looks smooth and even. B-flute at 3 mm suits larger or denser parcels, and the black still covers it well, with a little more texture from the wider flute.
Design Your Matt Black Mailer Mailer Box
Drop your logo on a real photo of our matt black mailer boxes, set the size and quantity, and send it. A designer sets up the real dieline and sends a free proof.
Your logo is placed on a real photo of our box. A designer redraws it to scale on the dieline and sends a free proof before anything is printed.
How is a matt black mailer box made?
We start with standard corrugated board, either brown kraft or white-lined. The outer face is printed with a solid black flood in full colour, edge to edge, before the sheet is cut and creased. A matt or gloss varnish then goes over the black to set the sheen and protect the ink.
So the colour is print, not a special board. That keeps the box in the same price band as other printed mailers and lets you add a logo, a pattern or an inside message in the same run. It sits in our printed mailer boxes and finishes range.
Who chooses black mailer boxes?
Black reads as calm and grown-up in a stack of brown parcels. Sellers pick it when the product inside is small, considered or meant as a gift.
- Jewellery makers posting rings and necklaces in a fitted tray.
- Grooming brands sending beard oil, balm and a comb as one set.
- Candle sellers who want a dark box to frame a pale jar.
- Coffee and tea shops posting tins or bags with a printed card.
- Gift businesses building Father's Day or anniversary bundles.
What these sellers share is a product that looks better against a dark backdrop, and a customer who will notice the difference.
Kraft or white-lined under a black flood?
Both take black well, but they behave differently once the box is open. On kraft, the cut edges and the inside show warm brown, which gives a two-tone look when the lid lifts. On white-lined board, the inside is clean white, so any inside print looks crisp and the contrast with the black lid is sharp.
If you want the inside left plain, kraft gives a softer feel. If you want a bright pattern or message inside, white-lined board is the safer base. Price is close between the two, so the choice comes down to how you want the box to look when it opens.
What should go on a black box?
Light ink on a black flood is where this box earns its place. A white logo on the lid, or a single line of text on the front wall, stands out more than the same artwork on brown.
| Artwork on the black | How it reads | Tip |
|---|---|---|
| White logo on the lid | Strong contrast, easy to spot | Keep fine lines thicker than you would on white |
| One accent colour | Bold against the dark field | Pick a bright tone; deep shades sink into black |
| Full colour photo | Works inside a white panel | Let the black frame the image |
| Text on the front wall | Seen as the box is handed over | Short words, larger type |
| No print, black only | Plain and understated | Add a printed sticker seal |
White ink on black needs slightly heavier strokes than black ink on white, because the dark field creeps in at the edges. Send your logo and we will flag any lines that look too thin on the proof.
If the artwork has several colours, ask for a version on a black background as well as the usual one. Seeing both side by side on the proof saves a reprint later.
Matt or gloss varnish on black?
Matt varnish gives the soft, dark finish most people picture when they ask for a black mailer. It cuts glare and hides light scuffs better than a shiny surface.
Gloss varnish makes the black deeper and catches the light, which suits bold logos. It shows fingerprints more readily. Either one protects the ink from rubbing against other parcels in a sack.
Can you print inside a matt black mailer?
Yes. The inside can stay plain, carry a full colour pattern, or flip the scheme with a black inside and a kraft outside. A message on the underside of the lid is the most common choice.
Inside print adds a second print pass, so it is priced separately on the quote. If both faces matter equally, our double sided printed mailer boxes are set up for exactly that.
What size black mailer box do I need?
Start from the packed item plus 3 to 5 mm clearance on each side. The typical starting size is 250 x 180 x 80 mm inside, which holds a small gift set or a folded shirt.
For a Royal Mail Large Letter, keep the outside within 353 x 250 x 25 mm; a Small Parcel takes up to 450 x 350 x 160 mm. Check the current band limits before you order. The step-by-step mailer box measuring guide shows where to put the ruler.
How do you pack a black mailer box neatly?
A dark box shows dust and fingermarks more than kraft, so a tidy packing routine helps.
- Wipe the bench and keep flat blanks face down until you fold them.
- Fold the base and walls, then set any insert or tissue inside.
- Place the product and fold the side dust flaps in over it.
- Roll the lid over and tuck the front lip behind the front wall.
- Add the address label to a plain area you planned on the proof.
Handle folded boxes by the edges rather than the lid face, and they reach the customer looking as dark and even as they left you.
Mistakes to avoid with black mailers
- Choosing thin, delicate white lettering that fills in against the black.
- Putting a dark accent colour on black and losing it completely.
- Leaving no plain space for a label, so it sticks over the logo.
- Picking gloss for a box that will be handled a lot before it ships.
- Forgetting that kraft will show brown on every cut edge.
How do I order matt black mailer boxes?
Tell us the inside size, kraft or white-lined board, the quantity and any artwork for the lid or inside. We send a written quote within one working day, from £0.25 a box, with low minimums set per job.
A free proof shows the black flood and your artwork on the flat layout, and nothing is printed until you approve it. Production takes 4 to 6 working days after approval, and free tracked UK mainland delivery follows in 2 to 3 working days. Request your matt black box quote in writing or message +44 7578 382054 on WhatsApp.
Related mailer boxes
Other closures and finishes that start from the same idea.
Custom Printed Mailer BoxesFull colour outside, one colour inside or bothFrom £0.25 a box
White Mailer BoxesWhite-lined board, printed or left plainFrom £0.25 a box
Insert Fitted Mailer BoxesDie-cut board insert holds each item in placeFrom £0.25 a box
Tuck Top Mailer BoxesRoll-over front, tuck-in lid, prints inside and outFrom £0.25 a boxMatt Black Mailer Boxes questions
Are matt black mailer boxes made from black board?
No. They are kraft or white-lined corrugated board printed with a solid black flood, then varnished. That keeps them flexible on size and print.
Can I have a white logo on a matt black mailer box?
Yes. White ink on the black flood is the most common choice and gives the strongest contrast on the lid.
Will a matt black mailer box show scuffs in the post?
A varnish over the black protects the ink, and matt hides light marks better than gloss. Deep scratches through the board can still show brown or white beneath.
What colour is the inside of a matt black mailer box?
Brown on kraft board or white on white-lined board, unless you add inside print. You can also print the inside black.
Can a matt black mailer box have a coloured inside?
Yes. A full colour pattern or a flat colour inside is a common pairing with the dark outside.
Do the edges of a black mailer box show the board colour?
Yes. Cut edges and flute ends show the board beneath the ink, brown on kraft and white on white-lined.
Is gloss varnish available on a black mailer box?
Yes. Gloss gives a deeper shine but shows fingerprints more than matt. Both are offered on the same box.
Can a matt black mailer box hold jewellery securely?
Yes, with a die-cut board insert that holds each piece in its own slot. The insert can be printed black to match the box.
Which flute gives the smoothest black finish on a mailer box?
E-flute at 1.5 mm has a flatter surface, so the black flood looks more even. B-flute shows a little more texture.
Can I add an accent colour to a matt black mailer box?
Yes. Bright accents such as gold-toned yellow, coral or sky blue read well; deep shades get lost against the black.
Will a postage label stick to a matt black mailer box?
Yes. Standard paper labels stick to varnished board. Plan a plain area on the proof so the label does not cover your logo.
Can my matt black mailers have a printed message inside the lid?
Yes. The underside of the lid is the most popular spot, priced as inside print on the same job. Our guide to printing inside the lid covers layout.
Your question is not here? Ask on WhatsApp or call +44 7578 382054.
Tell us what you post
Send the product, a rough inside size and a quantity. We reply in writing within one working day with a price and a free design proof. Prefer to talk? Call +44 7578 382054 or message us on WhatsApp.