A fully configured SPARC M7-16 server weighs approximately 1650 lbs (749 kg), a fully-configured, rackmounted SPARC M8-8 server weighs approximately 917 lbs (416 kg), and a fully-configured, rackmounted SPARC M7-8 server weighs approximately 824 lbs. (374 kg), and each server could weigh more depending on how you cable them. While the loading is over an area of around 23.62 in (600 mm) x 47.24 in. (1200 mm), the true stress of the server weight is over the four casters and four leveling feet.
The server has a caster and an adjacent leveling foot at each corner of the server, so each corner bears approximately 415 lbs (188.2 kg) of a SPARC M7-16 server's weight, approximately 230 lbs (104.3 kg) of a SPARC M8-8 server's weight, or approximately 200 lbs (90.7 kg) of a SPARC M7-8 server's weight. If a caster and leveling foot are located in the center of a raised floor tile, that tile bears this entire weight. The floor tile and underlying supports must be able to accommodate this load.