Tecslab ™ - Lightweight Timber Frame Floor System, High Load Capacity Floor & Two-Way Floor Structures Tecslab ™ is the affordable premium lightweight timber frame floor system with the qualities and feel of a concrete floor. The system is designed for both medium and high-density construction. It provides a superior floor solution, quicker build times and significant cost savings. The Tecslab &tade; system provides a superior long-spanning and high load capacity floor.