Custom Corrugated Boxes

E-flute for retail mailers, B-flute for shipping, BC-flute for heavy freight.

E-flute (1.0–1.5mm) for retail mailers, litho-lam, and premium display — smooth print surface, not for heavy items. B-flute (2.5–3.0mm) for standard shipping cartons and mailers — the default choice for most ecommerce. C-flute (3.5–4.0mm) for heavier items — higher crush resistance but rougher print. BC-flute (5.0–6.0mm, double-wall) for heavy-duty freight, bulk food, and fragile items.

Corrugated is fluted medium + liners (3+ layers); paperboard is single-ply solid board.

Corrugated board is a fluted medium sandwiched between two liner boards — three layers minimum, designed for crush resistance and shipping protection. Paperboard (SBS, kraft board) is a single-ply solid board — designed for print quality and retail shelf presentation, not for shipping protection. Choose corrugated for anything that ships through a carrier; choose paperboard (folding cartons) for retail shelf packaging that does not need to survive shipping alone.

A printed art paper sheet laminated to corrugated board for premium print quality.

Litho-lamination is a two-stage process: first, the artwork is printed offset or digital on a 157 gsm art paper sheet; second, that printed sheet is laminated (glued) to the corrugated board. The result is full-color CMYK or Pantone print quality on a corrugated structure — the format for premium retail mailers and display boxes. Litho-lam costs more than direct flexo print but delivers print quality that flexo cannot match.

Yes — 7–10 business days for a printed sample, 5–7 for a white sample.

We provide white samples (unprinted, exact construction) in 5–7 business days and printed samples (your artwork, finish, and color) in 7–10 business days. Sample fees are credited back against your production order. For corrugated, the white sample also confirms the flute type, board grade, and ECT rating — all critical for shipping protection.

ECT measures stacking crush resistance; burst strength measures puncture resistance.

ECT (Edge Crush Test) measures how much stacking weight the board can resist before collapsing — the right spec for palletized shipping and warehouse storage. Burst strength (Mullen) measures how much puncture force the board can resist before bursting — the right spec for individual packages handled roughly in transit. Most ecommerce corrugated is now specified by ECT (32 ECT is the standard). For heavy or fragile items, ask for burst-rated board (200# minimum).

Yes — corrugated is the most-recycled packaging material globally.

Corrugated board is curbside-recyclable in standard paper streams and is the most-recycled packaging material globally (typically 90%+ recycling rate). If you choose a litho-lam wrap with foil or lamination, recyclability is reduced — check with your local recycler. For brands making a sustainability claim on-pack, choose FSC-certified board, water-based ink, and skip foil. We supply chain-of-custody documentation for all FSC-certified projects.

10–15 business days after sample approval.

Standard production runs 10–15 business days after sample approval — faster than rigid formats because corrugated is machine-converted, not hand-wrapped. Flexo-printed shipping cartons run faster (10–15 days). Litho-lam mailers and display boxes run 10–15 days because the litho-lam wrap adds a pass. Air freight (5–7 days) and sea freight (28–35 days) are both available.