Calculate cubic yards, bags, and Green Bay WI-accurate ready-mix costs for any Brown County project. Includes Wisconsin's 48-in. frost depth, 6% air entrainment, and WBC 2021 guidance.
Enter dimensions for volume, bags, and Green Bay WI / Brown County material cost estimate.
Driveway: 5 in. min, 4,000 PSI, 6% air entrainment required (ACI 318 F2). Green Bay permit required. 4–6 in. WDOT base course. NO deicing salts — sand only. Seal annually. Cure 7 days min.
Walkway 4 in · Driveway 5 in (WI standard) · Patio 4 in · Garage 4–5 in · Foundation Wall 8–10 in · Footing 8–12 in
Green Bay is Brown County's largest city — home of the Packers, sitting at ~580 ft on the western shore of Green Bay. Its concrete environment is defined by Wisconsin's punishing winter climate: a 48-inch design frost depth — deeper than Chicago (42 in.), Grand Rapids (42 in.), or Minneapolis (42–48 in.) — and mandatory ACI 318 Exposure Class F2 air entrainment (6% ±1.5%) for all exterior flatwork. Green Bay averages 45+ inches of snow and 100+ freeze-thaw cycles annually. All work is governed by the Wisconsin Building Code (WBC 2021 / IBC 2018) administered by the City of Green Bay Building Inspection Division.
Brown County's design frost depth is 48 inches — one of the deepest in the lower 48 states. Every exterior footing — foundations, steps, detached garage pads, retaining wall footings, and column bases — must extend at least 48 inches below finished grade per WBC 2021 and IRC R403.1.4. Footings above frost depth will heave annually as soil freezes and expands (up to 10% vertical uplift in clay soils), cracking everything above. Interior heated footings are exempt. Budget considerably more concrete for Green Bay deep footings than Sun Belt or even mid-latitude markets. City inspectors verify frost depth at the footing inspection before authorizing any pour.
All exterior flatwork: 4,000 PSI min; 6% ±1.5% air entrainment (ACI 318 F2); 5 in. driveways, 4 in. patios/walks · Footings: 48 in. below grade; 3,500–4,000 PSI; rebar per WBC · Garage floors (heated): 4 in. min, 3,500 PSI, 6-mil vapor barrier · Foundation walls: 8–10 in., 3,500–4,000 PSI, waterproofed · Never use deicing salts — sand only · Cure minimum 7 days before traffic · Cold-weather pours (<50°F) require ACI 306 heated enclosures, blankets, accelerators · Book May–September for best conditions. All WI contractors must hold a valid Wisconsin Contractor Credential — verify at Wisconsin DSPS.
ACI 318 Exposure Class F2 requires 6% ±1.5% entrained air in all exterior Green Bay concrete. Always run an ASTM C231 pressure meter test at the truck before placing — reject any load below 4.5% air content. Microscopic air voids act as expansion chambers during freeze-thaw cycling. Without them, Green Bay's 100+ annual freeze-thaw cycles cause surface scaling within 2–3 winters. Document your air test. Never accept a non-tested exterior load in Wisconsin.
Green Bay's optimal pouring window is May through mid-October. Concrete must be protected once ambient temps fall below 50°F — use ACI 306 cold-weather protocols (heated blankets, hot mix water, accelerating admixtures) for fall/spring pours. Never place concrete on frozen ground. July–August is peak season — book suppliers and contractors 2–4 weeks in advance. Cold-weather surcharges of $15–$35/yd apply October–April.
Multiply length × width × (depth ÷ 12) for cubic feet, divide by 27 for cubic yards, then add 10% overage. Major Green Bay / Brown County suppliers include Ideal Ready Mix, LaFarge Holcim, CEMEX, and regional Northeast Wisconsin independents. Short-load fees run $100–$175 for under 3–5 cu yd. Book 48–72 hours minimum; 1–2 weeks in peak season.
Confirm 6% air content with pressure meter before every exterior pour — reject loads below 4.5%. All exterior footings must reach 48 inches below grade — inspectors verify this at footing inspection. Always pull a permit. Verify Wisconsin contractor credentials at Wisconsin DSPS. Unpermitted work must be disclosed at sale in Wisconsin.
Brown County's ready-mix market is competitive Northeast Wisconsin pricing — below coastal markets, comparable to other Great Lakes cities. All exterior mixes carry an air-entrainment premium. Winter mix surcharges apply October–April.
| Mix / PSI | Green Bay WI Price / Cu Yd | National Avg | Best For | Air Entrained? | WBC 2021 / ACI 318 |
|---|---|---|---|---|---|
| 3,000 PSI — Interior | $130–$142 | $130–$148 | Interior basement floors only | Not for Exterior | Interior Only |
| 3,500 PSI — Ext. Min | $136–$148 | $143–$158 | Sidewalks, light flatwork | 6% Required | F1 Compliant |
| 4,000 PSI — WI Std ✓ | $140–$155 | $148–$163 | Driveways, patios, pool decks | 6% Required | F2 Compliant |
| 4,500 PSI — High Duty | $148–$163 | $155–$170 | Heavy driveways, commercial slabs | 6% Required | F2 Compliant |
| 5,000 PSI — Structural | $158–$178 | $165–$182 | Commercial / engineered foundations | 6% Exterior | Compliant |
| Winter Mix — ACI 306 | $155–$188 | $155–$178 | Oct–Apr cold-weather pours | 6% Required | ACI 306 OK |
The City of Green Bay Building Inspection Division requires permits for driveways, patio slabs, pool decks, foundations, and retaining walls. Apply at greenbaywi.gov/building-inspection. Standard permits process in 3–7 business days. Inspectors verify frost depth (48 in.), air content records, vapor barriers, and rebar. Verify contractor credentials at Wisconsin DSPS.