SPC Flooring Quality: Four Checks Before You Buy
Two SPC quotations can show the same finished thickness and describe very different products. Compare the construction, test conditions and approved sample before comparing the price per square metre.
What to compare in the technical file
| Check | Evidence to request | What it changes |
|---|---|---|
| Core consistency | Construction sheet, material specification and production tolerances. Use density alongside composition and test results, rather than as a stand-alone quality score. | Weight, processing consistency and the basis for comparing two quotations. |
| Wear layer | Wear-layer thickness for the exact SKU, measurement method and declared tolerances. Keep the wear layer separate from the UV coating. | Range positioning and whether the proposed construction matches the tender. |
| Dimensional stability | Report identifying the specimen, conditioning, temperature, exposure time and dimensional change or curling result. | Suitability for the specified conditions and installation instructions. |
| Click-joint strength | Test method, long-side and short-side results where measured, specimen thickness and click profile. | Joint performance; a locking-system logo does not replace test evidence. |
Compare the board and backing separately
State the thickness basis
A board thickness includes its decorative and wear layers. Do not add those layers again when calculating the finished product thickness.
Identify the attached pad
Record IXPE or EVA, pad thickness and the finished total. A 5 mm board plus a 1 mm pad is a 6 mm finished construction.
Use the complete build
Changing the pad, wear layer, format or fixing method can change the relevance of a test report. Match the report to the construction being ordered.
Approve joined samples, not only a single plank
- AppearanceLay several pieces together. Review colour variation, print repeat, texture, gloss and the visual joint under direct and side lighting.
- AssemblyCheck long and short joints using the intended installation method. Record visible gaps, edge damage and the result after disassembly if reuse matters.
- Production referenceKeep an identified approval sample and an agreed specification. Record tolerances and inspection criteria in the order file.
The documents to collect before production
- SKU-specific technical data sheet and construction drawing.
- Relevant test reports with product identity, specimen description, method, laboratory and result.
- Applicable emissions certification scope, including the product covered and certificate status.
- Installation and maintenance instructions, including subfloor and environmental requirements.
- Approved décor, texture, bevel and backing sample.
- Carton coverage, pieces per carton, net/gross weight and pallet arrangement.
- Agreed inspection criteria and order specification.
SPC quality questions from wholesale buyers
Is a heavier SPC board always better?
No. Weight and density describe part of the construction. Compare composition, dimensional stability, joint performance and manufacturing tolerances before drawing a quality conclusion.
Does a thicker wear layer make the board more stable?
It provides a different wear-layer specification. Dimensional stability must be assessed using the board construction and the relevant test result; it cannot be inferred from wear-layer thickness.
Can I compare two reports with different test conditions?
Not as equivalent results. Check the method, conditioning, specimen and reported metric first. Ask for a comparison on the same basis.
What should I send with an SPC enquiry?
Send board and finished thickness, pad, wear layer, size, décor, quantity per colour, destination and project requirements. Include the tender standard when a specific report is required.
Related buyer resources
Sources and further reading
Send the build and destination
Tell us the construction, wear layer, size, quantity per colour, destination and required documents. This gives the quotation a clear product and delivery basis.