ModelCalcs.uk
Shipping Calculator — Pack Models Safely
Estimate box size, packing materials and weight for shipping models safely.
How We Calculate This
Calculates the box size needed based on model dimensions and required packing thickness, plus weight estimates for shipping.
Formula
- Padding = Base packing thickness x Fragility factor
- Box dimensions = Model dimensions + (2 x Padding)
- Volumetric weight (g) = (L cm x W cm x H cm / 5000) x 1000
- Chargeable weight = Greater of actual or volumetric weight
Frequently Asked Questions
Wrap the model in soft tissue, then surround with bubble wrap. Place in a snug inner box, then put that box inside a larger outer box with foam peanuts or crumpled paper between them. This double-box method absorbs shocks from any direction.
Couriers charge by whichever is greater: actual weight or volumetric weight. Volumetric weight is calculated as Length x Width x Height (cm) / 5000. Large lightweight packages often cost more due to volumetric weight.
Yes. Remove aerials, antennae, gun barrels and any other thin or protruding parts. Wrap them separately and include them in the box. This significantly reduces damage risk during transit.
Royal Mail Special Delivery Guaranteed by 1pm includes compensation up to £750, with enhanced cover up to £1,000 or £2,500 available at extra cost. Parcelforce is reliable for larger items. Avoid economy services without tracking. Always insure for the full replacement value, not just the kit cost.
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Last updated: February 2026
All calculations are estimates. Always verify quantities before purchasing materials.