Note:  Insert designed for the standard Retail game  version with external box dimensions of 30.0 x 30.0 x 5.5 cm, and for the Deluxe game version with dimensions 30.0 x 30.0 x 7.5 cm.

Insert compatible with Brass: Birmingham® or Brass: Lancashire®, both Retail and Deluxe editions. The design provides both efficient storage and improved game play. All the trays can be utilised during the game, and they greatly aid set-up and clear-away times. The rules and boards act as a lid on top of the trays. There is one tray for the player reference cards and other components which has two build variants, one for each version of the game.

The filler trays for the iron clay box have been designed to imitate factory buildings as per the theme of the games.

There are trays for the player pieces. Each has one large slot for the character and link tiles, as well as the wooden VP & income markers. Each type of industry tiles has it's own slot, allowing them to be organised and quickly allocated to the player boards at the start of the game.

There are two trays for the location & industry tiles, which also have slots for the iron & coal cubes. There is a separate tray for the money tokens, with a slot for each denomination. There is space for all cards to be sleeved.

The following tray has two variants, the one for Brass Birmingham® has a slightly deeper card slot to hold the wild cards and player aids. Underneath the cards is the tray for the beer barrels, and the merchant tiles are placed in a slot at the end of the tray. The second variant, for Brass Lancashire®. In this case the card slot is shallower, to hold just the player aids. Underneath are placed the distant cotton market tiles. The end slot is for the white market marker.

When clearing the game away and packing the box, the rule book is placed on top of the trays. On top of this place the main game board, followed by the player boards.  This fills the box to the top and allows for vertical storage of the game. This same approach is used for the Deluxe and Retail versions.

Due to the thicker player boards included in the Deluxe versions of both games, there is a very small amount of lid lift when the box is packed of approximately 3 mm.