Add another room to your main whelping box. Multiple rooms can be daisy-chained together. A 4x4 room can be added to a 4x6 room, and vice versa. A 3x3 add-on room can only be added on to 3x3 Fab boxes.  Add-on rooms allow the breeder to teach proper feeding habits, socialization, and house training. Doors are fully functional between rooms, allowing separation if needed. 

Need a floor? Use our grommet pads →

Need panel covers? Use our Fab System Individual Panel Cover Set →

3x3 Add-On Room (21.5" height) includes: 

• 1 x 3' Front Panel and Door
• 2 x 3' Side Panels
• 4 x Corner Braces
• 6 x Posts
• Hardware Packet

4x4 Add-On Room (21.5" height) includes: 

• 1 x 4' Front Panel and Door
• 2 x 4' Side Panels
• 4 x Corner Braces
• 6 x Posts
• Hardware Packet

4x6 Add-On Room (21.5" height) Includes:

• 1 x 4' Front Panel and Door
• 4 x 3' Side Panels
• 2 x Straight Braces
• 4 x Corner Braces
• 8 x Posts
• Hardware Packet

*FREE standard shipping when shipped within the Continental U.S.