Calculate cubic yards, bags needed, and Washington-accurate ready-mix costs for any Lakewood concrete project — driveways, patios, foundations, garage slabs, footings & more.
Enter your project dimensions to calculate volume, bags needed, and estimated Lakewood WA material cost.
Residential driveway: 4–5 in. min, 3,500 PSI. Vapor barrier required under all interior slabs. Pierce County permit required for most flatwork over 200 sq ft.
Driveway 4–5 in · Garage 5 in · Patio 4 in · Foundation 6–8 in
Lakewood is a city of approximately 70,000 residents in Pierce County, Washington, bordered by Tacoma to the north and Joint Base Lewis-McChord (JBLM) to the south. The Pacific Northwest climate delivers over 45 inches of annual rainfall to the Lakewood area, making moisture control, proper drainage, and vapor barriers the top priority for all concrete projects. Unlike arid regions, Lakewood contractors must actively manage saturated subgrades and wet-pour conditions — placing concrete on muddy or waterlogged ground results in a weakened slab that will fail prematurely. The Washington State Department of Labor and Industries (L&I) licenses all contractors in the state; always verify at lni.wa.gov before hiring. Lakewood also falls within a seismic design zone per WSBC, requiring seismic provisions in all foundation designs.
Driveways & Patios: 3,500 PSI min, 4–5 in. thick, control joints every 8–10 ft · Garage Floors: 3,500–4,000 PSI, 5 in., vapor barrier mandatory · Foundation Slabs: 3,500–4,000 PSI, 6–8 in., seismic reinforcement per WSBC · Frost Depth: 18 in. in Pierce County — footings must extend below this depth · Vapor Barrier: 10-mil poly required under all interior concrete slabs in Western Washington · Air Entrainment: 4–6% recommended for driveways and exterior flatwork to handle occasional freeze-thaw events · Always confirm requirements with Pierce County Development Center or City of Lakewood Building Department before beginning work.
A standard 20×20 ft Lakewood driveway at 4–5 inches needs ~5–6.2 cubic yards of 3,500 PSI concrete. Western Washington's wet climate means subgrade preparation is critical — never pour on saturated ground, and install proper edge drainage to direct runoff away from the slab. Control joints every 8–10 ft manage cracking from the region's moderate temperature swings. Basic broom-finish driveways run $9–$15/sq ft installed in the Pierce County market, with decorative stamped work reaching $20–$35/sq ft.
Garage floors are a top priority concrete project in Lakewood. A standard two-car garage (20×22 ft) at 5 inches needs ~6.7 cubic yards of 3,500–4,000 PSI concrete. A 10-mil polyethylene vapor barrier is required under all garage slabs in Western Washington — the high soil moisture and rainfall can drive moisture upward through an unsealed slab, causing efflorescence, coating failures, and mold issues. Slope the floor ¼ inch per foot toward the garage door for proper drainage.
Pierce County sits in a moderate seismic hazard zone — close enough to major fault systems and the Cascadia Subduction Zone that seismic provisions are required for all residential and commercial foundations under the WSBC. Most Lakewood residential foundations use 3,500–4,000 PSI concrete with rebar designed to seismic specifications. Lakewood also has areas with glacial till and soft lacustrine soils near the lakes and waterways — a geotechnical report is strongly advisable for any new foundation in these areas.
Measure your project's length and width in feet and thickness in inches. Multiply length × width × (thickness ÷ 12) to get cubic feet, then divide by 27 to get cubic yards. Always add a 10% waste factor for Lakewood projects — wet Pacific Northwest conditions can occasionally delay pours mid-job and a second truck call adds $175–$300 in short-load fees. For driveways, ensure the subgrade is properly compacted and dry before ordering — a softened base from recent rainfall will compromise your final pour depth.
Western Washington's near-constant rainfall from October through April creates the biggest concrete challenge in Lakewood: never pour concrete on saturated, muddy, or waterlogged subgrade. Rain falling directly on freshly placed concrete dilutes the cement paste, increases the water-to-cement ratio, and dramatically weakens the finished surface — causing dusting, scaling, and reduced strength. Before pouring, always check that the subgrade has had adequate time to drain after recent rain. Cover fresh concrete immediately if rain threatens within 2–4 hours of placement. Schedule pours during the drier months of June through September whenever possible, or use temporary rain covers and pump jacks to protect the pour area during wet-season work.
The table below reflects typical volumes and current Pierce County ready-mix pricing for the most common project types. Installed costs include forming, standard labor, broom finish, and control joints — they exclude excavation, vapor barriers, permits, and seismic engineering fees. Washington State has above-average labor costs. Always collect at least three bids from L&I-licensed Lakewood concrete contractors before committing to any project.
| Project Type | Typical Size | Thickness | Cu Yards | Material Cost | Installed Estimate | Notes |
|---|---|---|---|---|---|---|
| Driveway (Standard) | 20 × 20 ft | 5 in. | ~6.2 yd | $1,042 | $2,500 – $3,800 | 3,500 PSI |
| Garage Floor (2-car) | 20 × 22 ft | 5 in. | ~6.7 yd | $1,126 | $2,700 – $4,000 | 4,000 PSI · Vapor |
| Patio / Backyard Slab | 16 × 20 ft | 4 in. | ~4.7 yd | $790 | $1,700 – $2,700 | 3,500 PSI |
| Foundation Slab | 1,500 sq ft | 6 in. | ~18.5 yd | $3,108 | $9,000 – $15,500 | 4,000+ PSI · Seismic |
| Sidewalk / Walkway | 4 × 40 ft | 4 in. | ~2.0 yd | $336 | $850 – $1,550 | 3,500 PSI |
| Commercial / Warehouse | 40 × 60 ft | 6 in. | ~44.4 yd | $7,459 | $20,000 – $34,000 | 4,000–5,000 PSI |
The Lakewood area is underlain primarily by glacial till, lacustrine clays, and outwash sands and gravels deposited during the last ice age. Soil conditions vary considerably across Pierce County — areas near American Lake, Gravelly Lake, and the lowland areas toward the Nisqually River tend to have soft lacustrine soils with poor bearing capacity that require geotechnical investigation before any foundation work. Higher elevation areas typically have better-draining glacial outwash gravels. Western Washington's annual rainfall of 40–50 inches keeps subsurface soils moist year-round, making subgrade compaction and base course drainage critical steps that should never be skipped.
The Lakewood area receives the majority of its rainfall between October and April. During the wet season, concrete work is possible but requires extra precautions: always test subgrade compaction and moisture content before pouring, use temporary rain covers staged and ready before the truck arrives, and apply a curing compound immediately after finishing. The ideal Lakewood concrete season is June through September — drier conditions mean better subgrade stability, faster curing, and lower risk of rain damage to fresh surfaces. If you must work in the wet season, communicate clearly with your ready-mix supplier about likely delays and have a concrete blanket or poly sheeting ready to deploy instantly if rain arrives unexpectedly.
Confirm local permit requirements and soil conditions before any Pierce County pour.
Check current permit requirements, inspection procedures, and WSBC concrete standards for residential and commercial projects in Lakewood. The Building Department handles flatwork, foundation, and structural concrete permits for City of Lakewood and can refer you to Pierce County Development Center for unincorporated areas.
Visit City of LakewoodVerify licenses, bond status, and complaint history for any concrete or construction contractor working in Lakewood. Washington's L&I maintains a public contractor lookup — always confirm your contractor's registration before signing a contract to protect your project and ensure proper insurance coverage.
Search L&IThe Washington State Building Code (WSBC) governs all concrete construction in Lakewood, including seismic design provisions, vapor barrier requirements, and frost depth minimums. The WSBC is based on the IBC with Washington-specific amendments — essential reading for any engineer or contractor working on Lakewood foundation or structural concrete projects.
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