SKLUBS / BUYING GUIDE
Packaging dimensions: measure before ordering for UK projects
A reliable size brief starts with the product in its packed configuration. Three unlabelled numbers are not enough: state the unit, what was measured and whether the dimensions describe the product or the packaging.
SKLUBS editorial team · Updated 8 October 2026
Measure the complete packed product
Include caps, handles, accessories and any leaflet or protective layer intended to go inside. State the orientation used for the measurement. For an irregular object, identify the points that determine the required space rather than measuring only its most convenient face.
Photograph the item with a scale and note any variation between units. A single nominal dimension may not capture a projecting part or an accessory that must sit beside the product.
Separate internal and external dimensions
Internal dimensions describe useful space; external dimensions describe the outside of the assembled pack. Material thickness, folds, closures and inserts can affect the relationship. Ask the supplier to confirm which dimension convention is used in its drawing and quotation.
Do not subtract a guessed allowance from the outside size. The required fit depends on the proposed construction. Keep product measurements distinct from the dimensions you are asking the supplier to design.
Allow for the insert and the closure
Describe how the product should be held and removed. An insert occupies space and must suit both the product and the box. A lid or closure may need clearance that is not obvious in a front-view photograph.
There is no universal clearance to add to every object. Ask for the fit proposal and validate it with an appropriate sample, including accessories and the intended opening sequence.
Treat pouch capacity as a fit question
Product weight alone does not establish pouch dimensions. Contents with different shapes or densities can occupy different volumes. Filling, seals, the closure and the chosen pouch construction also affect useful space.
Provide representative contents and the intended filling method where practical. Do not use a generic weight-to-size table as proof that the product will fit or close correctly.
Approve one drawing and a documented sample
Use a clearly identified drawing revision with labelled dimensions and units. If teams use different units, agree the conversion and rounding in one reference document. Recheck the drawing after any structural change.
Record the product and sample used for the fit check. Test insertion, holding, removal and closure. A successful fit does not by itself validate shipping protection, but it resolves a separate essential question before production.
UK project brief: dimensions, use and destination
For a UK quotation, identify Great Britain or Northern Ireland and provide the destination postcode. Keep the packaging specification separate from delivery responsibilities. Confirm the agreed dimension convention and approved UK product copy before comparing suppliers.
If the pack is intended for retail, online orders or gifting, describe that journey explicitly. A UK destination does not by itself establish whether a box is suitable for parcel delivery. Ask for the relevant construction, outer protection and delivery scope to be documented in the proposal.
Questions about packaging size
Should I send product size or desired box size? Send both if known and label them clearly. Ask the supplier to confirm the construction rather than treating them as interchangeable.
Can a rendering confirm dimensions? It can illustrate a proposal, but the agreed drawing and appropriate physical check remain the references.
What does SKLUBS need? Product measurements, photos, accessories, orientation, quantity and intended pack type, with open questions identified.