Ceiling support system

A cleanroom ceiling support system comprising:

• a ceiling support section comprising:
• a set of perimeter sticks configured to be assembled to define a perimeter of the ceiling support section;
• a set of interior runner sticks configured to be assembled within the perimeter defined by the set of perimeter sticks and orientated in a first direction;
• a set of interior cross sticks configured to be assembled within the perimeter defined by the set of perimeter sticks and orientated in a second direction;
• a first mounting bracket configured to connect any combination of perimeter and interior sticks;
• and
• a second mounting bracket configured to connect any combination of perimeter and interior sticks;
• wherein each perimeter stick of the set of perimeter sticks has a first cross-sectional profile, and wherein each interior runner stick of the set of interior runner sticks and each interior cross stick of the set of interior cross sticks have a second cross-sectional profile;
• and
• wherein the first cross-sectional profile is half of the second cross-sectional profile such that two adjacent and oppositely facing perimeter sticks of the set of perimeter sticks form the second cross-sectional profile.