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GSA Schedule for Construction Companies: Schedules and SINs

Updated April 27, 2026·12 min read

GSA Schedule for Construction Companies

Construction companies can access the federal market through the GSA Multiple Award Schedule, though the Schedule has specific limitations and is not the primary vehicle for large construction contracts. Understanding how construction fits within the Schedule program — and when other vehicles like MATOC (Multiple Award Task Order Contract) or the Army Corps of Engineers programs are more appropriate — helps you position your company effectively for federal construction work.

Construction SINs on the MAS

The GSA MAS covers construction through the Facilities category. Key SINs include: SIN 561210FS (Facilities Maintenance and Management), SIN 238 (Specialty Trade Construction Services), and various environmental remediation SINs. These SINs cover maintenance, repair, operations (MRO) work, and construction projects within specific dollar thresholds rather than major design-build projects. The Schedule is particularly well-suited for indefinite quantity facilities work, ongoing maintenance contracts, and smaller construction projects.

Schedule vs. MATOC for Construction

Large federal construction projects — new facilities, major renovations, base infrastructure — are typically procured through agency-specific IDIQs like MATOC, SATOC, or JOC (Job Order Contracting) vehicles, not the GSA Schedule. The Schedule is better positioned for smaller construction and maintenance requirements where an agency needs access to qualified contractors on short notice. Understanding this distinction prevents you from pursuing the Schedule for requirements that agencies will never buy through it.

Project TypeBest VehicleDollar Range
Facilities maintenanceGSA Schedule$25K–$5M+
Small renovation/alterationGSA Schedule or agency IDIQUp to $2M
Major constructionMATOC, Corps, agency IDIQ$2M–$100M+
Design-buildAgency-specific competitionVaries widely

SCA and Davis-Bacon Requirements

Construction contracts subject to the Davis-Bacon Act require contractors to pay prevailing wages for construction laborers and mechanics at rates published by the Department of Labor. GSA Schedule construction task orders above the applicable thresholds may include Davis-Bacon prevailing wage determinations that set minimum wage rates for the work location. Failing to pay Davis-Bacon rates on a covered contract is a significant compliance violation. Ensure your labor cost structure accounts for prevailing wages when bidding on federal construction work through any vehicle.

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Verified against official GSA and FAI sources, March 2026. Program rules, thresholds, and solicitation details are subject to change without notice.

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