What size eyelash box fits single-pair, multi-pair and cluster lash trays?

How do I measure a thermoformed plastic lash tray for a custom box?

Two plastic lash trays that both hold 16 mm strip lashes can differ by a quarter inch in outer width depending on how wide the thermoformed plastic rim is trimmed. Never guess your box dimensions from a supplier photo. Place your physical lash tray on a flat table with its clear plastic dust cover snapped on, and measure three external numbers with calipers or a steel ruler: the longest horizontal edge from left to right (Length), the shorter edge from top to bottom (Width), and the vertical height from the flat bottom of the tray to the highest peak of the clear plastic dome over the lash curl (Depth). Once you record those three external tray numbers, add 1/16 inch (about 1.5 mm) to Length, Width and Depth to get your inside box dimensions. That 1/16 inch tolerance gives your fulfillment team enough room to slide the tray and a decorative paperboard backing card into printed eyelash cartons without catching on the side glue flap, while keeping the fit tight enough that the tray cannot shift crooked behind your die-cut front window.

1. Measure outer flange length (L): read the full flat plastic rim from left edge to right edge, not just the curved lash bridge.
2. Measure outer flange width (W): read the full plastic rim from top edge to bottom edge.
3. Measure snapped-on dome height (D): measure from the table surface to the tallest peak of the clear cover over the lashes.
4. Add 1/16 inch (0.0625 in) to L, W and D if inserting the tray alone, or add 1/8 inch to D if adding a thick glitter or rigid backing card underneath.
5. Measure window bridge offset: record the distance from the top edge of the tray down to the two curved lash cradles so the window centers over the fibers.

What are the standard eyelash box dimensions by tray type?

While CubitPack cuts every order to your exact inside length × width × depth with no tooling fees, most false eyelash trays across US beauty supply stores, salons and online lash brands fall into seven common configurations. Use the benchmark table below to compare single-pair retail cartons, adhesive combo boxes, multi-pair lash books and under-lash cluster starter kits. Notice that the third number (Depth) changes based on both lash curl height and whether a cylindrical tube, such as a 5 ml liquid lash adhesive vial or a dual-ended bond-and-seal wand, sits inside the same carton. Whenever a round bottle or wand shares the box with a flat lash tray, the carton depth must clear the diameter of the tube plus a paperboard divider wall.

How deep should an eyelash box be for 15 mm vs 25 mm lashes?

Carton depth is the dimension most often underestimated by new lash brands. Natural everyday strip lashes (8 mm to 15 mm) sit in low-profile blister trays whose clear dust cover rises only about 0.50 to 0.55 inches high, making a 0.625 inch (5/8 in) carton depth plenty roomy. However, Russian Volume, Mega Volume and 25 mm dramatic wisps curve sharply upward from the lash band and require a high-dome blister cover measuring 0.68 to 0.78 inches tall. If you force a 0.72 inch dramatic lash dome into a 0.625 inch folding carton, the front cardboard panel and window film bow outward and press down on the center of the lash arch. After two weeks stacked in a warehouse carton or stuffed into a bubble mailer, the fibers develop a flat crease across the middle. Moving up to a 0.75 inch or 0.875 inch box depth adds pennies of paperboard while keeping dramatic D-curl and CC-curl fibers bouncy right out of the package.

How do I size boxes for 3-pair lash sets, 5-pair books and DIY cluster kits?

Multi-pair lash packs and DIY under-lash extension kits arrange lashes in one of two layouts: vertical stacks (where pairs sit one below another) or book-style columns (where pairs sit in two vertical rows like pages). A 3-pair vertical blister tray typically measures 4.625 × 4.125 inches and fits a 4.75 × 4.25 × 0.75 inch custom tray and sleeve box or window carton. A 5-pair or 7-pair lash wardrobe tray widens to roughly 5.375 × 6.125 inches, which pairs well with a 5.5 × 6.25 × 0.875 inch magnetic book box or drawer carton. DIY cluster lash segment trays are flatter across the lash rows (usually 8 mm to 16 mm individual fans), but the starter kit almost always bundles a dual-ended bond-and-seal tube (about 0.55 in diameter × 4.75 in long) and curved stainless steel tweezers. To hold the flat cluster tray alongside the round tube and tweezers without rattling, use a 5.75 × 4.5 × 1.125 inch carton fitted with a die-cut custom cardboard insert or EVA foam tray that gives the tray, wand and tool their own recessed wells.

How do retail hang tabs and shipping mailers affect eyelash box dimensions?

When your lashes hang on beauty supply pegboards or salon checkout stands, the top hang tab adds 1.0 to 1.25 inches of vertical height above the main carton body. On an integrated Euro-slot custom hang tab box, the inside product cavity is still quoted by its usable length × width × depth (for example 4.75 × 2.5 × 0.75 in), while our structural team extends the back panel upward on the dieline at no extra die cost. Also think one step ahead to how your single lash cartons pack into e-commerce custom mailer boxes or subscription sets. Three standard 4.75 × 2.5 × 0.75 inch lash boxes laid side by side with a lash glue carton fit neatly inside an 8 × 6 × 2 inch mailer box, keeping your USPS Ground Advantage dimensional weight in the lowest possible postage tier.

What are the most common eyelash box sizing mistakes?

Nearly every misfitted lash carton happens when dimensions are taken from the lashes themselves instead of the outer plastic blister tray. Watch out for these five sizing errors

1. Measuring only the curved lash band instead of the full outer flange of the thermoformed plastic tray, which makes the carton too narrow to close.
2. Ordering a 0.50 or 0.625 inch shallow carton for 25 mm dramatic lashes, causing the clear dome and window to mash the curl flat.
3. Adding 1/4 inch or more of extra width around the blister tray, which lets the tray slide sideways so half the lash hides behind the cardboard frame.
4. Forgetting to add 1/16 to 1/8 inch of depth for a glitter, metallic or rigid backing card slipped underneath the clear plastic tray.
5. Sizing a DIY cluster lash kit to the flat segment tray thickness while forgetting the 0.55 inch diameter of the bond-and-seal mascara tube.

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