Discontinued Costco / Harmonics Flooring Reference

Costco sold Harmonics (and related Home Design) laminate for years, then dropped colors without leaving a retail match path. When a warehouse clears a color, the manufacturer often marks the style depleted soon after. Homeowners who installed Harmonics mid-project, or who later need a repair plank, are left matching from leftover cartons rather than from Costco shelves.

Harmonics was a warehouse-club laminate line associated with Mohawk. Support for Costco-purchased Harmonics / Mohawk Home floors still routes through the brand’s Costco inquiry channel, but that channel does not restock depleted colors. Harmonics is not TrafficMaster and does not lock into Home Depot LifeProof or Pergo XP. Approximate eras below come from FlooringFX leftover comments and manufacturer “depleted” status, not a single published discontinue calendar.

How to ID a Costco / Harmonics floor

1. Read the carton end: brand strip (Harmonics, Home Design, Dimensions), color name, and any part number (examples: VC403S, RM203S, AH404S, NO802S).
2. Measure a spare plank: thickness with pad, width, length, and locking type (many Harmonics runs used Uniclic).
3. Photograph the label and a plank face before you post a Match listing.
4. Search leftovers by exact color name first, then by part number. Do not assume a similarly named Home Depot or Lowe’s color will click into Harmonics.

Related: full discontinued flooring index · carton-end label decoder · Harmonics Antique Hickory archive thread · Lowe’s Style Selections reference · where people look for leftover flooring.

Harmonics (Costco) verified patterns

Rows below appear in FlooringFX comment history and/or public Mohawk factory-outlet depleted lists for Harmonics / Costco Harmonics. Model strings are plain text. Confirm every code on your carton before buying.

Common name	Model / part	Approx. era	Notes
Antique Hickory	AH404S on some cartons (also written without a short SKU on older ends). Alias “Canoe Bay” appears in archive requests for the same hand-scraped visual.	Costco-era leftovers active in comments ~2011–2016+; manufacturer lists depleted	Hand-scraped wide plank visual; Uniclic locking; premium attached padding on archive product copy. Historic FlooringFX HAVE/NEED threads include multi-box garage pallets and single-box repair asks. Confirm AH404S on the carton strip before treating any “hickory” leftover as a match. Archive page. Pattern page.
Royal Mahogany	RM203S (also written Royal Mohagany on some depleted lists)	Same Costco leftover market; Costco no longer stocked when commenters asked	NEED and HAVE threads on FlooringFX asked for boxes after Costco discontinued the color. Confirm spelling on the carton strip; do not confuse with non-Harmonics Mohawk “Royal Mahogany” hardwood strings. Pattern page.
Vintage Chestnut	VC403S / VC-403s / VC 403 S	Sold at Costco around ~2009 per public leftover forums; depleted thereafter	Commenter-reported size about 3/8 in. (+1/16) × 6-1/8 in. × 54-11/32 in. FlooringFX archives include HAVE offers of sealed boxes and loose lengths. Verify dimensions on the carton end. Pattern page.
Skyline Maple	Often unmarked on depleted lists; listed as Costco Harmonics	Active FlooringFX NEED/HAVE comments ~2012–2018	Repeated archive asks and multi-box HAVE offers explicitly name Harmonics Skyline Maple sold by Costco. Photograph the carton end; do not mix with other maple visuals (Cabin Maple, Honey Maple, Maple Select). Pattern page.
Premium Oak	Short SKU not always printed; archive cartons describe glueless laminate	Purchased at Costco as early as ~2004 per commenters; HAVE/NEED threads into ~2018	FlooringFX archive notes sealed Costco boxes with about 7 planks / ~17.18 sq ft per package. Treat as Harmonics Premium Oak only when the brand strip matches; oak look-alikes from other warehouse brands will not click in. Pattern page.
Maple Select	Not always printed as a short SKU in archive comments	Archive NEED ~2009	FlooringFX comment history includes a Harmonics Maple Select request. Confirm the full carton strip; do not assume it matches Skyline Maple or Cabin Maple. Pattern page.
Vineyard Cherry	VC506S / 559852	Manufacturer depleted (Harmonics)	Part number from public depleted inventory lists. Confirm on carton; do not mix with Vintage Chestnut VC403S. Pattern page.
Newport Oak	NO802S	Manufacturer depleted (Harmonics)	Short part-number form common on warehouse-club laminate ends. Photograph carton; confirm Harmonics brand strip. Do not mix with Premium Oak, Frontier Oak, Harbor Scraped Oak. Pattern page.
Cabin Maple	CM302	Manufacturer depleted (Harmonics)	Short code form; confirm brand strip says Harmonics before treating as a match. Pattern page.
Frontier Oak	33280-FO201	Manufacturer depleted (Harmonics)	Longer Mohawk-style model string on depleted lists. Photograph carton; confirm Harmonics brand strip. Pattern page.
Harbor Scraped Oak	33283-HS202	Manufacturer depleted (Harmonics)	Scraped oak visual; separate from Antique Hickory even when both look “hand scraped.” Photograph carton; confirm Harmonics brand strip. Pattern page.
Golden Aspen	511430 (Costco item); Harmonics vendor #43353 in public leftover posts	Costco discontinued around ~2014 per leftover forums; manufacturer depleted	Numeric Costco-style item code plus vendor number from public leftover asks. Photograph the full carton end. Pattern page.
Honey Maple	819263	Manufacturer depleted (Harmonics)	Numeric code on depleted lists; confirm against any maple visual already installed. Photograph carton; confirm Harmonics brand strip. Watch Honey Maple vs Rustic Honey Maple name collision. Pattern page.
Spiced Applewood	1054504	Listed as Costco Harmonics on depleted lists	Longer Costco-style item number. Treat as approximate era until a carton photo confirms dye lot. Photograph carton; confirm Harmonics brand strip. Do not mix with Toasted Cinnamon Oak 1203881. Pattern page.
Toasted Cinnamon Oak	1203881	Listed as Costco Harmonics on depleted lists	Same caution: match the full number and color name on the carton. Photograph carton; confirm Harmonics brand strip. Pattern page.
Brazilian Cherry; Cottage Oak; Harvest Oak	Varies / sometimes unmarked on depleted lists	Manufacturer depleted (Harmonics)	Names appear on depleted Harmonics rows without a stable short SKU in every source. Use color name + full carton brand strip + plank measurements + photos when posting a Match listing. Do not assume these match Premium Oak / Newport / Frontier / Harbor Scraped / other oak rows. Skyline Maple is listed separately above because FlooringFX archives confirm Costco Harmonics leftovers by that name. Pattern page.

Home Design Flooring (also sold at Costco)

FlooringFX’s Harmonics archive also logged Home Design Flooring requests tied to Costco. Treat these as separate from Harmonics-branded cartons unless the label says otherwise.

Common name	Item / notes	Approx. era	FlooringFX
Shortblock, natural finish	Item #14492 · “Residential flooring solution”	Appears in restored Harmonics request copy	Harmonics / Home Design archive
Natural Walnut	Item #709873 · also sold at Costco	Same archive thread	Same page above

What will not match Harmonics

• Home Depot TrafficMaster, Allure, or LifeProof colors with a similar oak/hickory name
• Pergo XP colors that only share a word (oak, hickory, chestnut)
• Lowe’s Style Selections or allen + roth floors, even when Mohawk manufactured both lines
• Sam’s Club Select Surfaces colors that only look similar in a photo
• Any “close enough” click plank with a different locking profile or thickness including pad

If you cannot find an exact leftover match, plan a doorway transition rather than mixing brands in one field. See the how-to guides hub.

Sam’s Club and Lowe’s

Warehouse-club leftovers are not Home Depot–only. Verified Lowe’s Style Selections / allen + roth rows live on the Lowe’s reference and the discontinued flooring index. Sam’s Club pattern rows are still thin in FlooringFX archives; post a Match listing with carton photos if you have a Sam’s leftover need or offer rather than guessing a model string.

Sources: FlooringFX Harmonics Antique Hickory archive and comment history (including Antique Hickory AH404S, Vintage Chestnut VC403S, Royal Mahogany, Skyline Maple, Premium Oak, Maple Select); FlooringFX discontinued flooring index; public Mohawk factory-outlet “out of production / depleted” lists naming Harmonics and Costco Harmonics colors with model strings where published; public Costco leftover posts naming Golden Aspen item 511430 / vendor 43353. Eras labeled approximate. Model numbers are plain text, not store links. This page expands as more carton-verified rows are confirmed. No leftover inventory is offered for sale by FlooringFX.