Lumber production sits at the start of almost every building project, and the facilities that turn logs into framing lumber are major construction projects in their own right. A single new mill can represent a $150 million investment, occupy more than 300,000 square feet, and feed hundreds of log trucks through its gates every day. For builders and suppliers, the opening of a large mill reshapes regional lumber supply, delivery times, and pricing. The scale of these projects varies by region, and construction practices in Georgia versus Florida show how local conditions influence everything from permitting to workforce planning.
This article walks through the numbers behind a modern lumber production facility: capacity in board feet, log supply logistics, construction timelines, and the employment impact a mill brings to its county. The focus stays on the facility type and its operations, using a representative Southeast project as the reference point.
Reading Mill Capacity Numbers
Mill size is measured in board feet of annual output. A board foot equals a piece of lumber 12 inches wide, 12 inches long, and 1 inch thick, and a large modern mill produces roughly 300 million board feet per year. That volume translates into framing lumber for tens of thousands of homes, and it explains why mills anchor regional supply chains. Most of that output ends up inside weather-resistive barriers and wall assemblies on job sites across the Southeast.
What 300 Million Board Feet Means
To put the number in context, a typical single-family home uses about 15,000 to 20,000 board feet of lumber. A mill at 300 million board feet per year therefore supports roughly 15,000 to 20,000 homes annually, before accounting for industrial and commercial uses. The facility also receives around 180 log trucks per day to keep that output moving.
Capacity vs. Throughput
Capacity describes what the mill can produce at full operation; throughput describes what it actually ships in a given month. Weather, log supply, and lumber demand all move throughput below capacity for stretches of the year, so builders should not plan around peak numbers alone.
The board foot measure also explains pricing. Lumber is quoted per thousand board feet, abbreviated MBF, and a mill’s efficiency shows in how many MBF it extracts from each log. Modern scanning systems optimize cuts log by log, lifting yield by several percentage points over older mills.
| Metric | Representative Large Mill |
|---|---|
| Construction investment | $150 million |
| Building footprint | 320,000 sq ft |
| Annual lumber output | 300 million bd ft |
| Log trucks per day | Approx. 180 |
| Full-time employees | 130+ |
| Annual payroll | $5 million |
The table summarizes the scale of a modern facility. These figures come from a mill announced in Albany-Dougherty County, Georgia, with construction scheduled to begin in 2018 and start-up in late 2019.
Yield explains the gap between log intake and lumber output. A typical southern pine log converts to about 40 to 50 percent of its volume as lumber; the rest becomes chips, sawdust, and bark that mills sell to paper plants, panel producers, and landscaping suppliers. Those byproduct sales are not incidental, because they can cover a meaningful share of operating costs and keep lumber prices competitive.
Site Selection and Timber Supply
A mill lives or dies on its log supply, so site selection starts with the timber basket, the radius of forestland that can feed the saw economically. The Southeast offers a dense timber base, which is why multiple new lumber production facilities were planned there in the same cycle. The region also hosts leading-edge construction projects, such as the Kendeda Building at Georgia Tech, a living building case study that shows how far regional building practices have advanced.
Log Supply Logistics
A facility taking 180 log trucks a day needs dependable year-round supply. Mill managers contract with landowners, loggers, and haulers, and they manage inventory by the week: too little wood starves the saw, too much ties up cash. Rail access extends the supply radius when trucking distances grow. Wet weather is the perennial wildcard, because mud can shut down logging roads for days at a time.
Infrastructure Requirements
Beyond timber, a mill site needs heavy-duty power, water for processing and dust control, and highway access that can handle loaded log trucks. Site grading, stormwater management, and rail spurs add months to the pre-construction phase.
Species mix matters as much as volume. Southeast mills process southern yellow pine almost exclusively, which is the region’s dominant plantation species and the backbone of dimensional lumber supply. Hardwood logs feed a separate mill segment, so a softwood facility competes only with other pine buyers for the same timber basket.
- Timber basket within economical hauling distance
- Highway and rail access for inbound logs and outbound lumber
- Industrial power and water service
- Workforce within commuting range
- Zoning and environmental permits
Construction Phases and Start-Up Timelines
Mill construction runs in phases that typically span 18 to 24 months from groundbreaking to first lumber. Site work and foundations come first, followed by the main building envelope, then the production line itself. On sites with existing structures, teams may reuse foundations or shells, and structural strengthening methods for seismic upgrades and rehabilitation often apply before new equipment is mounted.
Typical Phase Sequence
- Site clearing, grading, and utility installation
- Foundations for the sawmill building, kilns, and planer
- Structural steel erection and building enclosure
- Installation of sawing, sorting, and drying equipment
- Commissioning, test runs, and production ramp-up
Why Start-Up Dates Slip
Equipment lead times are the biggest risk to schedule. Headrigs, edgers, and kilns are custom-built and often shipped from overseas, so a delay in any single component pushes the whole timeline. Contractors protect the schedule by ordering long-lead items early and sequencing mechanical, electrical, and controls work around delivery dates.
Commissioning deserves its own line on the calendar. New equipment runs at reduced speeds for weeks while operators tune sawing accuracy, kiln schedules, and sorting logic. Ramping from first board to full output can take three to six months, so a mill announced for one year often reaches steady production the next.
Jobs, Payroll, and Regional Impact
A mill of this size employs more than 130 full-time workers and generates roughly $5 million in annual payroll, making it one of the larger private employers in its county. Those jobs span sawyers, kiln operators, planer operators, maintenance technicians, and logistics staff. The homes those workers help build depend on the lumber they produce, and once the wood is in place, building envelope best practices and humidity control determine how well the structure performs.
Direct and Indirect Employment
Direct jobs sit inside the mill. Indirect jobs follow in logging, trucking, fuel supply, equipment repair, and local services, often adding one to two positions for every direct hire. Counties track these multiplier effects when they compete for new facilities.
Payroll and Tax Base
Annual payroll of $5 million circulates through local housing, retail, and schools, and property taxes on the facility fund county services. The economic footprint grows over time as the mill expands or attracts supporting industries like truss plants and remanufacturing.
Timing the hiring ramp is a project in itself. Mill operators bring on core crews during equipment installation so they learn the machinery before the first shift, then add sorting and shipping staff as production climbs. A mill that starts hiring too late pays for it with a slow, error-prone ramp-up.
Workforce Training Pipeline
Mills run training programs with technical colleges to fill sawyer and maintenance roles. A steady pipeline matters because sawmills operate around the clock and skilled operators directly affect yield and lumber quality.
What the Output Means for Builders
New milling capacity shortens supply chains: builders source framing lumber closer to home, delivery windows tighten, and price volatility from freight costs drops. The tradeoff is that local mills sell into the same commodity market, so prices still track national demand. Builders who follow building science symposium takeaways use the more predictable supply to plan moisture management and just-in-time deliveries.
Planning Around Mill Output
Builders should confirm grade stamps, moisture content, and drying capacity with their supplier before ordering. Freshly milled lumber needs proper storage and acclimation on site, especially in humid southern climates, to avoid the shrinkage and warp that follow rapid drying.
When a new mill comes online, the hiring wave ripples through the local construction workforce, and companies that staff up quickly often rely on a structured interview process for leadership hires to keep quality high under deadline pressure.