Flooring and Floor Coverings
Structural slabs, ceramic tile, wood, and epoxy are treated as building in IRS examiner matrices. Strippable vinyl and carpet are treated as not permanent in several industry tables. Permanence is a Whiteco court test, not a statute, and matrices differ by industry. Educational information, not tax advice.
Educational information, not tax advice.
Updated 2026-10-14
Key takeaways
- Treas. Reg. §1.48-1(e)(2) lists floors and permanent coverings such as paneling or tiling as structural components.
- Retail and residential matrices treat VCT, sheet vinyl, and carpeting as not permanently attached for those industries.
- The pharmaceutical matrix treats permanently glued VCT and carpet as building.
- Whiteco’s six factors are a court test for inherent permanence; no single factor controls.
- Photograph the attachment method; do not export a retail vinyl row to a clean-room epoxy floor.
A floor can be the structural slab, which is part of the building, or a covering on that slab. Treas. Reg. §1.48-1(e)(2) lists floors and ceilings, as well as any permanent coverings therefor such as paneling or tiling, as structural components. Tangible personal property excludes those items. A building is a structure enclosing space, usually roofed, used for shelter, housing, or working, office, parking, display, or sales space. Ceramic tile, wood parquet, and epoxy toppings are the usual permanent-covering examples in Publication 5653’s retail matrix.
Whiteco Industries v. Commissioner framed six questions for whether property other than machinery is inherently permanent: whether it can be and has been moved; whether it is designed to remain permanently; expected length of affixation; difficulty of removal; damage on removal; and manner of affixation. Those questions are a Tax Court test, not a statute. Hospital Corp. of America held that the section 1.48-1 tests still apply under MACRS. Carpet and vinyl arguments usually live in Whiteco-style permanence, not in the machinery examples in section 1.48-1(c).
Publication 5653’s retail and residential matrices state that, for those industries, all VCT, sheet vinyl, and carpeting will be treated as not permanently attached and therefore as section 1245 property in class 57.0. The restaurant matrix treats all carpeting as not permanent. The pharmaceutical matrix treats permanently adhered VCT and carpet as building. The casino matrix treats removable floor covering in casino and theater areas as recreation-class property and, outside those areas, under class 57.0. The guide says each matrix reflects a general fact pattern for one industry and may not apply to others. There is no office-building flooring matrix.
Morrison denied kitchen floor tiles and sanitary floors as structural on cafeteria facts. Metro National’s facts involved ceilings more than floors, but the same permanence idea appears. AmeriSouth kept most finish claims with apartment buildings. Courts have split because some coverings come up with little damage and others are the floor of the building. Epoxy, quarry tile, and hardwood that would be destroyed in removal are the building side in the retail table.
Scott Paper functional allocation does not apply to flooring. Do not percentage-split a slab. Raised access floors dedicated to process equipment are a pharmaceutical-matrix personal-property row, not a vinyl row. Athletic maple, industrial toppings, and data-hall pedestals need their own function and permanence analysis. AmeriSouth kept most finish claims with apartment buildings, which is why a residential vinyl row is still examiner guidance for that industry rather than a holding that every floor covering is personal property.
Slab versus covering
The concrete structure is building. A covering is tested for permanence. Strippable adhesive is the retail and residential matrices’ reason for treating VCT, sheet vinyl, and carpet as not permanent in those industries. Thin-set ceramic and nailed wood are the opposite fact pattern in the same retail table. Morrison’s kitchen floor tiles stayed structural on cafeteria facts, which is why a restaurant carpet row and a kitchen quarry-tile floor can both appear in the same building file.
Industry tables are not interchangeable
Pharma’s glued-VCT row and retail’s strippable-VCT row can both be right on their facts. Exporting the retail sentence into a laboratory, or the pharma sentence into a grocery store, ignores the guide’s industry warning. Offices, warehouses, and medical clinics have no dedicated flooring matrix.
Casino and recreation splits
Removable floor covering in casino and theater areas is treated as class 79.0 recreation property in that matrix; outside those areas it is class 57.0. Do not export that split to an office. Rev. Rul. 2003-81 still requires checking asset categories before activity categories when a class-life question arises after the covering is treated as personal property.
Replacements and units of property
Treas. Reg. §1.263(a)-3 uses the building structure, other than listed building systems, as a unit of property for many finish replacements. Whether new carpet is a repair or an improvement is a capitalization question. Classification of the new covering is a separate depreciation question. Do not assume a deductible replacement is five-year property, or that a capitalized replacement is 39-year property, without the permanence analysis.
Photographs of attachment
Close photographs of adhesive, tack strip, grout, or mechanical pedestals, plus finish schedules from the drawings, are the file. A note on whether the covering is the walking surface of the building or a process platform belongs next to those photographs. Publication 5653 Chapter 4 expects a legal analysis and a cost reconciliation. Estimating methods in Chapter 3 are examiner-observed approaches, not operational extraction claims. Super Intelligence extraction is proposed. This page is educational information, not tax advice.
Sources
- 1IRS Publication 5653 — Cost Segregation Audit Techniques Guide (rev. 2-2025)(opens in a new tab)
Written for IRS examiners. The guide states it is not an official pronouncement of law and cannot be cited as authority. It predates the July 2025 law.
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- 9IRS Publication 946 — How To Depreciate Property (2025)(opens in a new tab)
Appendix B reproduces the Rev. Proc. 87-56 class lives.