How to Measure a Box for Your Product
Prepare clear box dimensions before requesting a quote. Learn what to measure, how to distinguish internal and external size, and where inserts and wrapping affect the fit.
Packaging Guides
Practical guidance for choosing packaging, preparing a clear brief and comparing the details that matter.
Your specification. Your artwork. A clear quotation.
Practical Guidance
Start with the decision in front of you.
Whether you are ordering your first mailer or reviewing a label material, a clear specification makes the next step easier. Use these guides to work through dimensions, construction, artwork and cost. If a detail is still undecided, add it to your quote request and ask us to advise.
Find your fit
Explore the relevant packaging
Compare the details, then tell us what you have in mind.
Paper, Vinyl or Clear Labels?
Compare label materials by the job they need to do. Start with the surface, conditions and artwork rather than choosing only by appearance.
What Affects a Packaging Quote?
Understand the details that change a packaging quotation and make comparisons clearer. Size, quantity, construction, artwork and delivery all belong in the brief.
Wrapping Tissue or Greaseproof Paper?
Choose paper by its intended contact and use. Packaging tissue and food wrapping paper may look similar, but their specifications serve different purposes.
Understanding box types
Compare tuck-end, mailer, sleeve and rigid box constructions.
UK B2B Packaging Engineering & Procurement
The Comprehensive Packaging Engineering Guide: Material Science, Dielines & Compliance
Navigating commercial packaging procurement requires balancing structural durability, visual shelf presence, operational packing speed, and strict environmental compliance. This engineering guide outlines core manufacturing parameters—from paperboard calipers and dieline tolerances to adhesive chemistries and UK Plastic Packaging Tax exemptions.
01 Work through your brief 4 Standards
01
Technical Caliper & GSM Standards
Complete B2B reference guide to folding boxboards, corrugated flutes, and food barrier papers.
02
UK Regulatory Compliance Checklist
Up-to-date guidance on UK Plastic Packaging Tax, EC 1935/2004 food contact, and kerbside recyclability.
03
Dieline & Artwork Pre-Flight Standards
Essential technical specifications for bleed margins, dieline tolerances (±0.5mm), and Pantone PMS calibration.
04
Volume Procurement Schedules
Lead times, production windows, digital 3D proofing protocols, and mainland UK delivery logistics.
02 Substrate Selection: Paperboard, Corrugated & Barrier Papers 01
Matching base substrate properties to product weight and environmental exposure:
- Folding Boxboard (FBB / GC1 / SBS): Virgin wood pulp boards (250gsm to 450gsm) offering high rigidity and ultra-smooth coated surfaces for retail printing.
- Micro-Flute Corrugated Board (E, F, and B-Flute): Engineered for courier transit crush strength, drop protection, and heavy parcel stacking (supports up to 25kg).
- PFAS-Free Greaseproof & Food Contact Papers: Mechanical fibrillation fiber refining creates dense oil barriers without toxic fluorochemicals for bakeries and delis.
- FSC & PEFC Certified Chain of Custody: Guaranteed ethical timber harvesting from sustainably managed European forests with complete provenance tracking.
03 Dieline Engineering, Creasing & Dimensional Tolerances 02
Precision die-cutting standards ensuring jam-free automated and manual assembly:
- CNC-Bent Steel Rule Dies (±0.5mm Tolerances): Ensures sharp, consistent edges and accurate scorelines that assemble smoothly without binding.
- Crash-Lock vs Straight Tuck Mechanics: Pre-glued auto-lock bottoms cut packing times by 50% compared to traditional manual tuck-end cartons.
- Pre-Broken Scorelines (90° and 180°): Pre-creasing prevents board cracking along folds and guarantees effortless counter-side assembly.
- Clearance Tolerances (+2mm to +4mm): Calibrated interior headspace preventing product jamming while maintaining a snug, rattle-free fit.
04 Color Management, Inks & Luxury Embellishments 03
Achieving consistent brand reproduction across diverse print substrates:
- ISO 12647 Colour Calibration & Pantone PMS Fidelity: Guarantees exact brand color matching across folding cartons, paper bags, tissue paper, and labels.
- Hot Stamped Foil Stamping & Tactile Embossing: CNC brass dies transfer vacuum-metallized leaf under 130°C thermal pressure for specular reflection.
- Spot High-Build UV & Velvet Soft-Touch Laminates: Selective gloss lacquers and sensory tactile coatings that elevate everyday packaging into luxury keepsakes.
- Low-Migration Non-Toxic Vegetable Inks: Certified mineral-oil-free inks safe for direct and indirect food contact under EC 1935/2004.
05 Environmental Legislation & UK Single-Use Tax Compliance 04
Navigating UK and EU packaging mandates with zero tax penalties:
- UK Plastic Packaging Tax Exemption (£217.85/tonne): 100% paper and paperboard packaging carries zero plastic tax liability, saving thousands on procurement.
- Single-Use Plastics (SUP) Directive Alignment: Guidance on replacing plastic bowls, expanded polystyrene clamshells, and plastic films with recyclable paper.
- On-Pack Recycling Label (OPRL) Best Practices: Clear consumer recycling symbols that build trust and encourage responsible domestic disposal.
- Turnkey Prototype & Pre-Production Proofing: Receive full 3D CAD digital mockups and physical unprinted white samples before full contract sign-off.
Bespoke UK Production Key Standards At A Glance
- 100% Quality Checked Prior to Dispatch
- Free 3D Digital Simulation & Dieline
- Certified Food-Safe & FSC Materials
- Tracked Mainland UK Delivery Included
HOW IT WORKS
Our 4-Step Packaging & Production Process
From initial idea to your doorstep, here is how easy it is to order custom packaging with QPack.
01 TELL US YOUR SPECS
Tell Us What You're Packing
Tell us your product size and quantity. We give you the exact box dimensions and a free template for your design.
02 FREE 3D PROOF
Free 3D Artwork Proof
Send us your logo or artwork. We create an interactive 3D digital model so you can check your box before printing.
03 VIBRANT PRINT
High-Definition Printing
Your boxes are printed in vibrant color and pre-creased so they fold up quickly with crisp, clean corners.
04 DOORSTEP DELIVERY
Quality Check & Fast Delivery
Every batch is inspected for quality, packed flat to save your storage space, and shipped tracked to your door.
Clear Answers
Frequently Asked Questions
Clear answers on sizing, minimum order runs, artwork proofs, board calipers, and free tracked UK delivery.
How do internal and external box dimensions differ when preparing a quote brief?
Internal dimensions represent the usable space inside the box (Length x Width x Depth) where your product must fit. External dimensions include the thickness of the paperboard or corrugated flute walls. Always specify internal dimensions to packaging manufacturers to prevent your product from being too tight or crushed.
What is the difference between GSM (paper weight) and Caliper (micron thickness)?
GSM (Grams per Square Metre) indicates the raw weight of the paper sheet, whereas Caliper (measured in microns or points) indicates physical sheet thickness. Two boards with the same 300gsm weight can have different thicknesses depending on pulp composition, calendering, and bulk density.
Which printing process should we choose: Digital, Litho-Laminate, or Flexo?
Digital printing is fastest and most economical for short runs (250 to 2,000 units) because it requires no print plates. Lithographic (Litho) printing is the gold standard for high-end retail cartons with photographic detail and luxury finishes. Flexographic (Flexo) printing is the most cost-effective method for high-volume corrugated boxes, paper bags, and food wraps exceeding 10,000 units.
How do UK Single-Use Plastics (SUP) regulations affect custom takeaway packaging?
The 2024 UK legislation prohibits single-use plastic plates, bowls, and expanded polystyrene containers. Commercial packaging must utilize plastic-free aqueous barrier coatings, recyclable food-grade paperboard, or certified home-compostable substrates that are fully accepted in UK municipal kerbside recycling streams.
What file format and color space should artwork be supplied in for packaging production?
Artwork should be supplied as a vectorized PDF, Adobe Illustrator (.AI), or EPS file built directly on our supplied CAD dieline template. All fonts must be converted to outlines, photographic images embedded at 300 DPI, colours set to CMYK or specific Pantone PMS spot references, and 3mm bleed included on all cut and crease lines.
How does packaging weight and dimension impact palletisation and courier shipping costs?
Right-sizing your packaging directly reduces dimensional weight (DIM weight) penalties from couriers like DPD, DHL, and Royal Mail. Designing cartons that maximize standard UK Euro-pallet footprints (1200mm x 1000mm) significantly lowers warehousing and logistics transport costs per unit.
Have a specific requirement or custom dieline?
Our UK packaging specialists can verify bottle clearances, create tailored structural CAD dielines, and supply physical plain samples.
Let’s make it yours
Turn your brief into a quotation.
Tell us what you are packing, your dimensions and quantity. We will help you work through the specification.