From the author's README on Thunderstore

10 Random Palace decks I like. They're far from perfect and ported over from some XL mods. Holes don't line up with the trucks correctly for example. They're all "dipped" decks too, not sure if the originals are.

Install PALACE DECK PACK 01

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for PALACE DECK PACK 01 and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.