Custom Small Mailing Boxes

Who Uses Small Mailers

Most of our small mailer customers sell through their own websites or marketplaces, and they post a steady flow of low-value, high-care items. A ring needs to arrive on its card without having slid into a corner. A lip balm should not be dented. A set of enamel pins has to stay on its backing. Sellers who do not need print start with our plain mailer boxes for unprinted orders.

• Jewellery makers posting rings, earrings and necklaces
• Marketplace shops selling stickers, pins and patches
• Beauty brands sending samples and minis
• Phone accessory sellers posting cases and cables
• Candle and wax melt brands sending tester packs
• Craft suppliers posting beads, threads and small kits

Board and Construction

Small mailers are usually made from E-flute or the even thinner F-flute corrugated. The fine flutes keep the walls slim, which helps with letterbox sizes, while still giving more crush resistance than a folding carton. The outer liner can be brown kraft for a natural look or white for brighter print, and the inner liner can be printed too.

Folding styles vary slightly. A roll end tuck front mailer has double-thickness side walls that roll over and lock, which feels sturdy even at small sizes. A simpler tuck top style uses less board and is quicker to fold, suiting very light items. We will suggest the better style for your item's weight and the way you pack.

Board choice also affects how the box feels when the customer picks it up. A mailer that flexes when squeezed gently feels cheap, even if it protected the item perfectly well. For premium jewellery or skincare, stepping up from F-flute to E-flute, or adding a lamination to the outside, gives a firmer, smoother feel that matches the price of what is inside. The flute sizes are explained in our corrugated flutes explained guide.

Making the Unboxing Count

Small parcels are opened quickly, often standing at the door, so the first look inside needs to land in a second or two. Printing the inside lid with a pattern, a thank you line or a social handle is one of the most effective small upgrades. A small card insert with a slot for a ring, or a die cut cradle for an earring card, keeps the item in the centre and presents it properly.

Outside, many sellers keep it simple: a logo on the lid and the website on one side. Plain kraft with a one-colour logo is a classic look and costs less than full coverage print. Full colour print suits brands with bold patterns or illustrations and makes every parcel recognisable on the doormat.

A branded seal sticker on the front tuck adds a final touch for very little cost, and it doubles as a simple tamper check.

Sizing Your Small Mailer

Lay out the item exactly as it will be packed, including any jewellery card, pouch, tissue or thank you note, and measure length, width and height. Add a few millimetres all round so the item fits without forcing. If the box feels too roomy, a small insert or a folded tissue layer is better than going up a size, because a smaller box saves postage and board.

Many shops use two sizes: one very slim box for single items and one slightly deeper box for bundles. Sharing one print design across both keeps branding consistent and simplifies the order.

Weight is the other half of the postage sum. A heavier board, a thick insert and a glossy card all add grams, and some postage bands are tight. Weigh a fully packed sample on your kitchen scales before you commit, especially if you are close to a band limit. We can suggest a lighter board or a thinner insert if the numbers are close, without losing the protection the item needs. Orders that outgrow a small mailer move to our foldable mailer boxes for bigger items.

Check the Letterbox Limit Before You Choose a Depth

Small mailers live or die by postage, so before you fix a size, measure your packed item in its tissue or jewellery box and check the depth against the letterbox limit you want to post under; a few millimetres decides whether a parcel is a large letter or a small parcel. Tell us the item sizes, the postage limit, and whether one design should cover a single-item box and a bundle box. Choose kraft or white board by your branding and decide whether a tear strip and an inside print are wanted, because both are cheaper to include from the start. Artwork is a logo and any inside message, sent as vector files, and the free proof shows the dieline flat and folded. A custom quote comes by email within one working day, minimums are quoted per job so a studio can order a few hundred, and mailers are made in 4–7 working days after approval, shipping flat with free tracked delivery to UK mainland addresses. Glass and ceramics need the thicker build on our fragile mailer boxes for glass page.