The concept of Deck Build Boxes originated in the BW Era with the release of the Master Deck Build Box EX, providing players with cards featured in decks that had performed well in competitions and accompanying literature examining those cards in detail. These Deck Build Boxes, however, are more akin to the Premium Trainer Box and Ultra Sun & Ultra Moon Premium Trainer Box released during the Sun & Moon Era, providing only reprints of popular Trainer and Special Energy cards, as well as multiples of every basic Energy card. Each box also comes with 13 booster packs: the Ultra Sun Deck Build Box includes ten Ultra Sun packs and three Ultra Force packs, while the Ultra Moon Deck Build Box includes ten Ultra Moon packs plus three Ultra Force packs. No additional accessories are included, unlike the Premium Trainer Boxes.
Each box contains a fixed selection of 158 cards: 50 of these comprise Trainer and Special Energy cards sourced from the XY, XY BREAK, and Sun & Moon Eras, with the remaining 108 cards consisting of 12 copies each of the nine basic Energy types. The Trainer cards differ between the two boxes, which together form a numbered master set. As with previous Premium Trainer Boxes, cards from the XY and XY BREAK Eras retain their original card layout and feature an XY set symbol, while those from the Sun & Moon Era feature a SMG set symbol.