Metal Building Prices in Williamson County, Texas
Installed price ranges below are engineered to Williamson County's design loads — 105 mph design wind speed and 5 psf snow. Pick a size for the full breakdown.
Serving Round Rock, Georgetown, Cedar Park, Leander, Hutto, Taylor, Liberty Hill and the rest of Williamson County.
| Design wind speed | 105 mph — Inland baseline |
|---|---|
| Ground snow load | 5 psf |
| Seismic design category | A — non-governing in TX |
| TDI windstorm (WPI-8) | Not required |
| Region / county seat | Austin Metro · Georgetown |
| Permitting office | Williamson County Construction Permits (Fire Marshal — commercial) |
Prices by size in Williamson County
| Size | Sq ft | Installed range |
|---|---|---|
| 12×20 | 240 | $3,600 – $6,500 |
| 20×20 | 400 | $6,000 – $11,000 |
| 20×30 | 600 | $9,000 – $16,000 |
| 24×30 | 720 | $11,000 – $19,500 |
| 30×30 | 900 | $13,500 – $24,500 |
| 24×40 | 960 | $14,500 – $26,000 |
| 30×40 | 1,200 | $17,000 – $30,000 |
| 30×50 | 1,500 | $21,000 – $37,500 |
| 40×40 | 1,600 | $22,500 – $40,000 |
| 30×60 | 1,800 | $25,000 – $45,000 |
| 40×60 | 2,400 | $33,500 – $60,000 |
| 50×50 | 2,500 | $35,000 – $62,500 |
| 50×60 | 3,000 | $42,000 – $66,000 |
| 40×80 | 3,200 | $45,000 – $70,500 |
| 40×100 | 4,000 | $56,000 – $88,000 |
| 50×80 | 4,000 | $56,000 – $88,000 |
| 60×80 | 4,800 | $67,000 – $105,500 |
| 50×100 | 5,000 | $70,000 – $110,000 |
| 60×100 | 6,000 | $84,000 – $132,000 |
| 60×120 | 7,200 | $101,000 – $158,500 |
| 80×100 | 8,000 | $112,000 – $176,000 |
Estimated range based on 2026 market data and Williamson County design requirements. Final pricing requires a dealer quote.
Building in Williamson County
Williamson County carries an ASCE 7-22 design wind speed of 105 mph (Risk Category II), which is near the Texas inland baseline. A standard engineered metal building meets this with typical bracing and anchor-bolt spacing, so wind adds little or nothing to the base price here — the frame you'd order for most of North and Central Texas.
Foundation & slab in Williamson County
Steel is only half the job — the concrete under it is the other half. The Austin area straddles Blackland clay to the east and Balcones limestone to the west, so conditions vary lot to lot. Clay sites need a stiffened, well-reinforced slab; rock sites can pour thinner but may need breaking or leveling. Confirm which you have before budgeting the foundation. The slab range shown in the estimator is a Texas-typical figure; your final number depends on a soils report and the local ready-mix price.