Packaging Science, FEFCO Specs & Logistics Guides
Engineered packaging insights from UK carton manufacturers. Explore burst resistance calculations, sustainable warehouse void fill conversions, and stretch wrapping yield optimization.
Warehouse GuideBoxes vs Mailing Bags vs Padded Bags: Which to Use
How to choose outer packaging for each order: cardboard boxes for fragile or heavy goods, mailing bags for soft goods, padded bags for small hard items.
Technical Guides & Insights (16)
Warehouse GuideFeaturedBoxes vs Mailing Bags vs Padded Bags: Which to Use
How to choose outer packaging for each order: cardboard boxes for fragile or heavy goods, mailing bags for soft goods, padded bags for small hard items.
Engineering BreakdownFeaturedSingle vs Double Wall Boxes: How to Choose
Single wall boxes suit light and medium parcels; double wall boxes add strength for heavy, fragile or stacked loads. How to tell which your goods need.
Apparel GuideHow to Ship Clothes: Mailing Bags and Grip Seal Bags
Ship clothing in two layers: a clear grip seal bag keeps each garment clean and folded, and a grey mailing bag protects the parcel on its way.
PiP Sizing GuideRoyal Mail Sizes: Mailing Bags vs Padded Envelopes
Royal Mail prices by size as well as weight. How grey mailing bags and padded envelopes help keep orders in the cheaper Large Letter size.
Troubleshooting GuideShipping Sharp or Heavy Parts: Grip Bags and Boxes
Bag sharp or heavy parts in grip seal bags before they go in the box. Parts stay together, box walls stay intact, and customers can open and reseal easily.
E-Commerce BrandingBoutique Unboxing on a Budget: Grip Bags and Mailers
A clear grip seal bag inside a padded envelope keeps small orders clean, dry and presentable, and thin enough for Royal Mail Large Letter prices.
Void Fill & ProtectionVoid Fill Guide: Packing Peanuts vs Foam Wrap vs Honeycomb Paper
Packing peanuts fill gaps fast, foam wrap stops scratches and honeycomb paper cushions without plastic. Here's which void fill to use, and when to use two together.
Logistics OptimizationPallet Wrap and Tape: Cast vs Blown Film Explained
Which stretch film to use for which pallet, and which tape for which box: clear cast film, black film, acrylic, solvent and paper tapes compared.
Cushioning MatrixFeaturedSmall vs Large Bubble Wrap: Which One Do You Need?
Small bubble wrap protects surfaces and fits closely; large bubble wrap cushions heavier items and fills space. How to choose for your parcels.
Tape GuideWhy Packing Tape Lifts Off Boxes, and When Hybrid Tape Fixes It
Tape lifting on recycled or cold boxes? See how hybrid adhesive tape like SBT840 compares with acrylic and solvent rubber tape, and when it is worth it.
Size GuideJiffy Bag Sizes Guide: Size 00 to 8 in mm & Inches
Every Jiffy bag size from 00 to 8 in mm and inches, what fits in each, and which size to choose for A4 documents, books and clothing.
Bubble WrapHow Is Bubble Wrap Made? Facts About Bubble Wrap
How bubble wrap is made, step by step: from polyethylene pellets to sealed air bubbles, plus small vs large bubble and a short history.
Size GuideRoyal Mail Parcel Sizes: Small, Medium & Large (UK)
Royal Mail small and medium parcel size and weight limits, what counts as a large parcel, how to measure, and which boxes fit each size.
Size GuideRoyal Mail Large Letter Size: Dimensions & Weight Limits
Royal Mail letter and large letter size limits: length, width, 2.5 cm thickness and 750 g weight, plus which mailing bags and envelopes fit.
Size GuideEnvelope Sizes UK: C4, C5, C6, DL & A4 Size Chart
UK envelope sizes chart in mm and inches: C4, C5, C6, DL and more, which paper fits each, what size envelope for A4, and Royal Mail formats.
ChecklistMoving House Checklist: How to Pack Room by Room
A week-by-week moving house checklist, the packing supplies you need, the best boxes for moving, and how to pack glasses, plates and furniture.