Cardboard boxes are measured by internal dimensions in millimetres (length x width x height). Signet's range spans small, medium and large shipping boxes, plus tall & long cartons and square shipping boxes to cater for various load sizes.

Single wall board boxes have one layer of corrugated paper between two flat sheets and suits standard shipping cartons. Double wall board boxes add a second corrugated layer, giving heavy duty boxes extra strength for heavier or bulkier items.

Shipping cartons are sold in bundle quantities, typically 25 per bundle, with 20, 15 and 10-carton bundles also available depending on the carton size. We also offer pallet size orders as well.

Adjustable boxes have score lines every 50mm starting from halfway up the carton, letting you trim the height down to match different order sizes without needing a separate box for every job.

For fragile items, consider heavy-duty double wall boxes for extra protection and use ample cushioning materials like bubble wrap or packing peanuts inside. Ensure there is enough space for cushioning around all sides of the item.

Yes, Signet offers a range of eco-friendly packaging options, including recycled cardboard boxes and biodegradable void fill. These sustainable choices help minimise environmental impact without compromising on protection.

Use strong packaging tape to securely seal your box, applying tape across all seams and edges. For heavy items, consider strapping or additional reinforcement to prevent the box from bursting open.

Store your unused boxes and cartons in a dry, clean area to prevent moisture damage and flattening. Keep them flat and unfolded if possible, or assembled and stacked if space allows, ensuring not to exceed a weight that might crush boxes at the bottom.