Builders FirstSource

*This location is by Appointment Only* Builders FirstSource is the nation's largest building materials supplier. Our Prosper TX Lumber Yard - By Appointment Only proudly serves builders, contractors & remodelers in Prosper and surrounding Dallas - Ft Worth TX Area with their building supply & construction needs. This facility offers the following building supplies & services: Lumber and Building Materials, Call for an Appointment. Cold weather doesn’t slow us down. Count on fast, reliable service and winter-ready products that help you build smarter. Visit us today to discover why we are known as builders' first choice!