How this was read

On 22 August 2026 the full New Jersey home improvement contractor register was downloaded from the state's own bulk export. It held 145,261 rows covering every registration the state has issued, active and lapsed.

Three filters were applied, in this order:

1. Status is Active. That removed 98,887 rows, most of them businesses that closed years ago.
2. The registered address is in New Jersey.
3. The trading name carries a flooring word — floor, flooring, carpet, hardwood, tile, vinyl, laminate, parquet, LVP or LVT.

That left 936 businesses. Names carrying only tile and no other flooring word were then set aside — 302 records — leaving the 634 registrations published here.

The register has no trade column. The classification field carries two values — Home Improvement Business Contr (145,194 rows) and Home Elevation Business Contr (67 rows) — and neither of them is a trade: one covers home improvement, the other covers raising a house. Nothing in the state's data says which registrant lays floors. The trading name is the only signal available, and it is a weak one: a flooring installer trading as John Smith Construction LLC is registered, is active, lays floors, and is not in this list. The count published here is a lower bound and should never be read as the number of flooring contractors in New Jersey.

Tile was excluded on a standards argument, not a size one. Tile installation is governed by a different body of standards — subfloor deflection, mortar beds, a separate certification route. Folding it into a schedule built on moisture ceilings and flatness spans would have put two incompatible requirement sets in one table.

Credentials are unchecked, and that is stated rather than implied. The largest flooring credential body blocks automated collection of its directory, and reading an absence as "no credentials" would be publishing a finding nobody measured. Every record here therefore shows credentials as unchecked until a person verifies one and dates it.

The figures on the schedule were read from installation documents published by the manufacturers themselves — not from retailer pages, distributor blogs or third-party guides. 8 brands are covered. Each cell carries the document it came from, and a cell with no source does not get published.

A cell on that schedule is in one of three states, and the three are printed with different words. A figure is a limit the document sets. A cell reading none required is a document that set the period at nought — 7 manufacturers do, for acclimation. A cell reading not published is the document saying nothing at all, and it adds what that leaves an installer holding. An absence is never rendered as a nought, a dash or a pass, and a nought is never rendered as an absence.

That second half is here because the page failed it. The acclimation column used to test its value for truthiness, so the 7 manufacturers whose documents set the period at nought were published under the words this table keeps for a document that says nothing — a written figure printed as silence, two sections below a heading reading missing is not zero.

One measured field is not on the schedule at all: a slab pH range, which 2 manufacturers of eight publishes. It is named on the schedule instead of shown, because a column blank for the rest tells a reader less than a sentence does — but it is in the register, and the data file this site publishes carries it.