What is Sponge Plank worth on Roblox?
As of September 28, 2026, Sponge Plank has a Recent Average Price (RAP) of 33 Robux and the cheapest reseller listing is 449 Robux. Across the 25 owned copies, its estimated market value is 825 Robux.
That puts the cheapest copy 1261% above RAP. Sellers are holding out for more than the item has recently traded at, which is normal for a UGC Limited with few copies on the market.
How rare is Sponge Plank ?
Sponge Plank is a UGC Limited Hat with 25 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for free.
Sponge Plank has 79 favorites on the Roblox catalog.
Sponge Plank sales history
RBX Invest has recorded 4 sales of Sponge Plank across 3 trading days, from Jul 14, 2025 to Oct 3, 2025.
Free claims from the creator are not counted, so these are sales between players.
Every recorded trading day averaged 95 Robux.
| Month | Average sale price | Sales |
|---|---|---|
| Oct 2025 | 95 R$ | 1 |
| Jul 2025 | 95 R$ | 3 |
Did Sponge Plank make money for release buyers?
Sponge Plank sold out of its original stock 25 days after its first recorded sale, on Jun 6, 2025. Copies could be resold from Jun 11, 2025, once Roblox's 30-day resale lock ended.
About Sponge Plank
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Where to find Sponge Plank
Sponge Plank is Roblox asset ID 71990002326264. It was published by zerobeast. On RBX Invest it sits in the UGC Limited Hats, Limiteds under 100 Copies, Limiteds under 1,000 Copies, Limiteds under 500 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.