Three factors consistently push actual production labor costs above what firms budget.
Utilization drag: At 61% utilization, a mid-level Revit drafter earning $78,000 per year generates billable hours for approximately $47,580 of that salary. The remaining $30,420 is absorbed by non-billable time. Multiply that across a production team of four, and the firm is carrying roughly $120,000 per year in paid but non-billed production capacity. This is not inefficiency, it is the structural reality of the industry. But it reinforces why the unit economics of fixed production staff are harder than the headline salary suggests.
Recruiting and onboarding: The AIA Architecture Billings Index reported in February 2026 that billings continued to contract, creating a challenging hiring environment where firms are competing for a thin pool of qualified production staff. Recruiting fees for US staffing agencies run 15 to 25% of first-year compensation. A $78,000 Revit drafter carries a placement fee of $11,700 to $19,500 before they start. Onboarding ramp time adds another 4 to 8 weeks of partial productivity.
Fixed cost during lean periods: Every full-time production hire is a fixed cost that the firm carries through slow periods, project delays, and demand cycles. A team structured around peak capacity is expensive to maintain during troughs. A team structured around average capacity creates delivery pressure every time work surges.