Thomas A. DeDecker (b. 1951)
Thomas A. DeDecker is an American artist with 13 auction lots recorded since 2010, median price $640. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.
A work by Thomas A. DeDecker sold in 2025 for $1,270, according to OpeningBid's index of auction results.
1 Thomas A. DeDecker work is coming to auction (as of 2026-11-02). Follow Thomas A. DeDecker free on OpeningBid for sale alerts.
See the full Thomas A. DeDecker record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View Thomas A. DeDecker on OpeningBid →What is a Thomas A. DeDecker work worth?
Across 11 sold lots tracked by OpeningBid, the median price of a Thomas A. DeDecker work is $640.
The median Thomas A. DeDecker painting sells for $650 across 11 lots.
Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
Price breakdown by category
| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 13 | $650†‡ | $3,250 | 84.6% | 2025-03-25 |
† hammer price — buyer's premium not included. ‡ reported price — whether it includes the buyer's premium is not yet verified.
Price by size
Paintings
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| small (under 50 cm) | 5 | $618–$640†‡ | $640†‡ | $650† |
| medium (50–120 cm) | 6 | $1,628–$3,044‡ | $2,751‡ | $3,250 |
† hammer price — buyer's premium not included. ‡ reported price — whether it includes the buyer's premium is not yet verified.
Size is the work's longest edge. Cells appear only with at least 5 sold lots.
Notable results
| Medium | Year | Price |
|---|---|---|
| Paintings | 2023 | $3,250 |
| Paintings | 2023 | $3,125 |
The highest recorded result in each medium. See the full sale history on OpeningBid.
Frequently asked questions
What is a Thomas A. DeDecker worth?
Across 11 sold lots tracked by OpeningBid, the median price of a Thomas A. DeDecker work is $640. The median Thomas A. DeDecker painting sells for $650 across 11 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is the average price of a Thomas A. DeDecker painting?
Based on 11 sold lots tracked by OpeningBid, the median auction price of a Thomas A. DeDecker painting is $650. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is Thomas A. DeDecker's most expensive painting?
The highest price recorded at auction for a Thomas A. DeDecker painting is $3,250.
What is Thomas A. DeDecker's auction record?
Thomas A. DeDecker's auction record is $2,800, set in 2023.
See the full Thomas A. DeDecker record on OpeningBid — images, provenance, fair estimates and free sale alerts.
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