Lego 16x16 (5"x5") Studded Rigid Base Plates 91405- You Pick Color & Quantity | eBay
Brick Building Sets Original LEGO® Parts: Plate 16 x 16 Studs Part #91405 (Pack of 1pc) (Dark Bluish Gray) - Walmart.com
LEGO White Baseplate 16 x 16 (6098) | Brick Owl - LEGO Marketplace
LEGO® 3 x 16x16 Pin/Stud PLATES - 1 x TAN 1 x GREY and 1 x GREEN (Base Boards Baseplate) - Actual dimensions 12.8cm x 12.8cm x 0.5cm - FREE UK POSTAGE -
Baseplate Bundle - 10 pack of 16x16 - 5" x 5" Base Plates – Brick Loot