Carpet tile, LVT and SPC are volume manufactured categories where direct mill sourcing is realistic for large areas, particularly on repeat multi-site programmes.
Raised access flooring is usually bought as a system with its own pedestal and panel set; we quote it as an installed system rather than as loose material.
Direct manufacturer supply is used where it is genuinely available for the category and volume. Where a brand supplies only through authorised partners, we buy that route to protect warranty and benchmark it so the difference is visible.