Sigma Lambda Chi is the national honorary society of Building Construction. The purpose of SLX is to recognize outstanding students in the School of Building Construction for their scholastic achievements, leadership abilities, and extracurricular activities.

Eligibility for membership in SLX is based on students' scholastic achievements, leadership abilities, and extracurricular activities. Each semester, SLX extends invitations to join the organization to students in the Junior 2, Senior 1, Senior 2, and Graduate classes. Students must have completed at least 12 hours of course work accepted as upper-division or graduate credit toward the BCN degree and be ranked in the top 20% of their class.

SLX serves students and the School while promoting good public relations with the construction industry. The Society performs volunteer work for the Gainesville community and is a source of required blueprints for BCN class work. To assist students in their quest for employment, SLX has organized and maintains a computerized Job Search File which contains the brochures of over one hundred construction firms.

Each semester SLX hosts its initiation banquet and ceremony for new initiates, members, and professors. Dr. Douglas Lucas is the faculty advisor.