SPC Flooring Thickness Guide: 4mm, 5mm and 6mm
SPC flooring thickness should be selected together with the wear layer, backing, locking system, subfloor condition, packing and target market. A 4mm, 5mm or 6mm plank is not automatically better because it is thicker; the useful choice is the specification that fits the buyer’s application, price position and installation conditions.
4mm, 5mm and 6mm at a glance
| Thickness | Typical buying position | Points to confirm |
|---|---|---|
| 4mm | Price-sensitive residential and distribution ranges | Subfloor flatness, locking profile, backing option and carton protection |
| 5mm | General wholesale and project ranges | Total construction, wear layer, backing, plank size and packing |
| 6mm | Higher-specification or differentiated ranges | Added weight, loading quantity, target selling price and installer acceptance |
These are purchasing positions rather than universal performance ratings. The final specification should be checked against project documents, local installation practice and samples.
What the thickness figure includes
Buyers should confirm whether the quoted thickness describes the SPC core only or the total plank construction. Attached IXPE or EVA backing changes the total thickness, carton weight and packing volume. Compare quotations using the same measurement basis.
Compare more than thickness
Before choosing a specification, review:
- wear-layer thickness and finish;
- locking profile and edge condition;
- attached backing type and thickness;
- plank dimensions and pieces per carton;
- carton and pallet quantities;
- estimated container loading;
- sample appearance and colour consistency;
- intended room type and subfloor condition.
Choosing a practical product range
Importers do not need many overlapping specifications. A compact range may use one main thickness plus a second option for a clearly different price or application position. Samples, packing data and the intended selling channel should be compared before bulk ordering.
Questions to send with an enquiry
- Is the stated thickness the core thickness or total thickness?
- What wear layer and surface finish are included?
- Is backing attached, and what type and thickness is it?
- What are the plank size, pieces per carton and carton weight?
- What are the pallet quantity and estimated container loading?
- Which locking profile and installation method apply?
- Can matching samples and packing details be provided for confirmation?
FAQ
Is thicker SPC flooring always better?
No. Thickness is only one part of the construction. Buyers should also compare the wear layer, backing, locking system, plank dimensions, packing and installation conditions.
Which thickness should an importer start with?
Start with the target selling channel and application, then compare like-for-like samples and packing data. A single main specification is usually easier to manage than several overlapping options.
Does attached backing count in the quoted thickness?
Suppliers may describe thickness differently. Ask whether the figure covers the SPC core alone or the total plank including backing.