TL;DR: A poorly structured brief is the single biggest cause of quote iterations — getting your structural dimensions, material preference, and finish spec into the first message cuts average sample rounds from 3 to 1.
TL;DR: Artwork files submitted below 300 DPI at final output size will be rejected at our prepress stage, adding 3–5 working days to your sample timeline.
What Your Supplier Needs Before They Can Quote Accurately #
Most quotation requests we receive fall into one of two categories: a paragraph of vague requirements, or a detailed brief with one critical piece missing. Both cause the same outcome — a requote after the first sample round.
For packaging production, accurate quoting depends on five fixed inputs: finished box dimensions (L × W × H in millimetres), structural style, substrate preference, print specification, and quantity tiers. Every one of these affects tooling cost, material yield, and press sheet layout. If we’re quoting a folding carton without knowing the finished dimensions, we’re estimating sheet efficiency blindly, and that estimate can swing unit cost by 15–20%.
Quantity tiers matter more than a single target volume. Send us three tiers — for example, 5,000 / 10,000 / 25,000 units. The price break between 5K and 25K on a standard offset-printed folding carton is rarely linear. Tooling and plate costs are fixed regardless of quantity, so the unit cost curve flattens sharply above 10,000 units for most carton formats. For rigid box production, even MOQs shift the cost structure significantly because handwork labour is volume-sensitive in a way that press time is not.
Surface finish is the other variable that gets omitted most often. Matte lamination, gloss lamination, soft-touch lamination, spot UV, foil stamping — each adds a separate process step and cost tier. If you don’t specify, we’ll quote a base lamination and note it, but when you come back wanting soft-touch plus spot UV on a 350gsm SBS carton, the quote changes materially.
Artwork Files — Format, Resolution, and Bleed Requirements #
Submit artwork as print-ready PDF (PDF/X-1a or PDF/X-4 preferred) with all fonts embedded and images linked at 300 DPI minimum at the final output size. RGB files converted in-house to CMYK introduce colour shift that is the supplier’s responsibility to manage, not yours — but if you want Pantone accuracy, call out specific Pantone Matching System (PMS) codes in your brief and confirm whether you need spot colour printing or an acceptable CMYK simulation. Per ISO 15930-4 (PDF/X-1a), all colour data must be CMYK or spot — no RGB, no LAB.
Bleed: 3mm on all sides for folding cartons, 5mm for flexible packaging formats where seal margins interact with the bleed zone. Safety margin for live text and critical brand elements: keep these 4mm inside the trim line. These aren’t suggestions — they’re what our prepress team flags on every incoming file under our internal PR-02 file acceptance checklist.
If you’re sending a dieline for structural reference, supply it on a separate unlocked layer or as a separate file. Artwork and dieline merged onto one layer is a consistent source of prepress delay. We’ve returned files for separation more than once because the structural cut lines were baked into the artwork layer.
Vector logos embedded in a PDF are fine. Rasterised logos at 72 DPI embedded in a Word document are not — we cannot output those cleanly regardless of what we do at our end.
Sample Types and What Each One Is Actually For #
There are three sample stages, and each serves a different evaluation purpose.
| Sample Type | What It Tests | Typical Turnaround | Cost (Indicative) |
|---|---|---|---|
| White / Unprinted Structural Sample | Structure, dimensions, fit of insert, lid action | 5–8 working days | Low — materials only |
| Printed Proof (Pre-Production) | Colour accuracy, finish, artwork registration | 10–15 working days | Moderate — press setup included |
| Production Sample (Gold Sample) | Full production run quality reference | After order confirmation | Included in production cost |
White samples are underused. If you’re designing a new rigid box format with a custom insert, getting a white sample before approving artwork saves a full print proof iteration if the structure needs adjustment. We build white samples from the approved dieline on our structural bench — no press involvement, just board, scoring, and handwork. Turnaround on a white sample is 5–8 working days from confirmed dimensions.
Printed proof turnaround of 10–15 working days accounts for press scheduling and lamination cure time. Lamination on a sheet-fed offset proof requires 24–48 hours of cure before any physical evaluation — checking adhesion, delamination, or scratch resistance before that window closes gives misleading results. Per ASTM D3359 cross-cut adhesion testing protocols, a minimum 24-hour cure at ambient temperature (23°C ± 2°C) is standard before adhesion measurement.
The gold sample is the physical production standard. Once approved, it lives in our QC-11 sample archive file against your order reference and is used as the comparison benchmark during inline and outgoing inspection. Do not approve a gold sample by photo — you need the physical piece in hand.
Cost-Performance Trade-offs When Comparing Quotes Across Suppliers #
This is where briefs that lack specificity cause the most damage. If you send the same verbal description to five suppliers and receive five quotes, you’re often comparing five different structural interpretations.
The clearest example: “matte box with magnetic closure” can mean 1.5mm greyboard with a grey back lamination and a basic neodymium magnet, or it can mean 2.2mm premium greyboard, one-sided coated art paper wrap at 128gsm, soft-touch lamination, and a countersunk N35 magnet. The cost difference between those two is not cosmetic. On a 3,000-unit run, it can be USD 0.80–1.20 per unit, which compounds quickly.
When you compare quotes, verify these five line items are identical across all responses: board specification (greyboard caliper in mm), outer wrap paper weight (GSM and coating type), lamination type (gloss/matte/soft-touch), magnet grade and size, and insert material if applicable. A quote that is 20% cheaper but uses 1.5mm board instead of 2.0mm will feel different to every consumer who handles that box.
There is one case where the lower-spec option is correct: for high-volume FMCG secondary packaging where the box is opened once and discarded, 1.5mm board with a gloss lamination is the right call. The premium greyboard spec is wasted cost in that application. Our practice is to ask about the consumer use cycle in the initial brief call — single-use discard versus repeat-open keepsake changes the entire spec.
Separately, watch for regional FSC certification differences. If your market or retailer requires FSC Chain of Custody certification (FSC-STD-40-004), confirm whether your supplier holds a valid FSC CoC licence number — not just that they “can source FSC materials.” We carry FSC CoC licence UGI-COC-[XXXXXX] and can provide the certificate on request.
Specification Notes for Brand Partners #
When you brief us on a new packaging project, the fastest path to an accurate first quote is a completed spec sheet covering: finished dimensions (L × W × H in mm), structural style (folding carton, rigid setup box, mailer, pouch), target quantity in at least two tiers, substrate preference or reference sample, and print specification including Pantone codes if applicable.
The most common brief gap we see is missing interior dimensions when an insert or tray is required. Exterior box dimensions alone are not enough to engineer the insert — we need the product footprint, weight, and fragility level. Submitting exterior dimensions without insert geometry typically adds one full sample iteration, usually 10–15 additional working days.
Our standard sampling timeline runs: white sample 5–8 working days from confirmed structural brief; printed proof 10–15 working days from artwork approval; production sample as part of the first production run. What affects these timelines most is artwork readiness and brief completeness, not press capacity. Incomplete artwork is the leading cause of timeline extension in our sampling workflow, ahead of material procurement delays.
What information do I need to prepare before requesting a quotation?
At minimum: finished box dimensions in millimetres (L × W × H), structural format, target quantities in 2–3 tiers, substrate preference, and print spec including any Pantone codes. Surface finish (lamination type, spot UV, foil) must also be specified — omitting it means the quote is based on a default assumption that may not match your intent.
How long does a printed proof take, and what affects the timeline?
Printed proofs typically run 10–15 working days from artwork approval. The variable is artwork readiness — files that fail our PR-02 prepress checklist (wrong resolution, missing bleed, unembedded fonts) go back to you before we can schedule press time. That return loop adds 3–5 working days per iteration, which is the most avoidable delay in the process.
Do I need a white sample before a printed proof?
It depends on whether the structure is proven or new. For a standard folding carton in a format you’ve used before, you can skip to a printed proof. For a custom rigid box with a bespoke insert, a white sample at 5–8 working days turnaround is worth doing first — if the structure needs adjustment, you catch it before press setup costs are incurred.
My quote from another supplier is 18% cheaper — how do I evaluate whether it’s comparable?
Check five specifics: greyboard caliper in mm, outer wrap paper weight and coating type, lamination grade, magnet specification (if applicable), and insert material. A lower quote that uses 1.5mm board instead of 2.0mm is a different product, not the same product at a better price. Ask for a material specification sheet alongside the price.
Does the supplier need to hold FSC certification, and how do I verify it?
If your retailer or market requires FSC-certified packaging, your supplier must hold a valid FSC Chain of Custody licence under FSC-STD-40-004 — not just claim access to FSC paper. Ask for the licence number and verify it directly on the FSC certificate database at info.fsc.org. A supplier who can only offer FSC paper without CoC certification cannot legally produce FSC-labelled packaging for your brand.
Planning a packaging project? Contact our team to request a complimentary specification review and sample quote.
