Step one: is the subfloor perfectly flat and sound?
If not — and many older Fife properties have subfloors with some unevenness — SPC's rigid core is more forgiving of minor imperfections than standard LVT, which relies more on the subfloor being properly prepped underneath a thinner, more flexible construction.
Step two: will heavy furniture or appliances sit on it long-term?
- SPC's stone-polymer core resists indentation from heavy static loads better than standard LVT
- Standard LVT can show gradual dents under permanently fixed heavy furniture over years
- Neither is immune to sharp point-loads like unpadded stiletto heels or furniture castors
- Furniture pads are worth using under both, but matter more with standard LVT
Step three: does underfoot feel matter to you?
Standard LVT typically has a slightly softer, more flexible feel underfoot that some people find closer to a timber floor's give. SPC's rigid core feels firmer and more solid, closer to walking on stone or tile, which some prefer and others don't.
Step four: is sound insulation between floors a concern?
In a flat or a room above a living space, standard LVT with the right underlay can perform slightly better acoustically than SPC's harder core, which can transmit more impact sound unless a good acoustic underlay is specified alongside it.
Step five: what's your budget for underlay and subfloor prep?
If the subfloor needs extensive levelling regardless, that cost applies whichever product is chosen — but if SPC's forgiveness of minor unevenness means less prep is needed, that can offset any difference in the flooring's own cost.
When standard LVT is genuinely the right call
On a well-prepared, flat subfloor with no unusually heavy static furniture, in a room where a softer, more timber-like feel underfoot and better sound-deadening matter, standard LVT is not the compromise option — it's the better fit.
Fife factor: older subfloors and new-build UFH
Many pre-war Dunfermline and Fife properties have timber subfloors with some natural unevenness, where SPC's tolerance is genuinely useful. In new-build Duloch homes with underfloor heating, both SPC and standard LVT can generally be specified for UFH, but always check the specific product's maximum rated temperature before installation.