Buying guides
Construction film calculator in square metresHow much construction film you need: width × length in m², overlaps and waste, thickness, LDPE or rLDPE and UV film for polytunnels, with examples.How to choose bin bagsChoosing bin bags: nominal litres vs real size, thickness in microns, LDPE, HDPE, MDPE or rLDPE, drawstring or tie handles and recycling colours.How to choose courier envelopesChoosing courier envelopes: usable size vs flap, thickness, opaque white-and-black co-extruded film, sizes by product and the right quantity.Neck finish and cap compatibilityWhy two 28 mm necks may not match: PCO 1810, PCO 1881, 28/410, 24/410, GL18 and 38 mm explained, and how to check a cap, pump or trigger sprayer.PET cans for drinks: a buying guidePET drink cans explained: volume, #202 and #211 lid standards, aluminium lids, the can sealing machine, quantities per carton and customisation.Set or piece: reading the priceHow to read Bags to Door prices: set or roll vs pieces, price per piece with and without VAT, volume tiers and a worked example.Stretch film: gross and net weightCompare stretch film rolls properly: gross weight, core weight, net weight, price per net kilogram and estimated film length, with worked examples.