Commercial Foundations by Legacy General Contractor
COMMERCIAL FOUNDATION SYSTEMS — MAT, STRIP, PILE & COMBINED FOOTING FOUNDATIONS
Our commercial foundation work includes mat (raft slab) foundations, strip foundations with continuous footings and grade beams, pile foundations (concrete piles, drilled shafts, driven piles), and combined footings (trapezoidal and rectangular). We work from engineered plans and coordinate with structural engineers, geotechnical consultants, and building inspectors to deliver foundations that support commercial-scale loads.
Starting at $10 per sq ft
Commercial Foundations Services
Select a service below for pricing, process details, and FAQs.
Pier & Pile Foundations
Drilled pier, driven pile, and helical pier foundations for commercial structures, decks, and additions on challenging soils.
Learn MoreMat & Raft Foundations
Large continuous slab foundations distributing building loads across entire footprint. Heavy commercial and industrial applications.
Learn MoreStrip & Continuous Footing Foundations
Continuous strip footings for load-bearing walls. Residential and light commercial applications with standard soil conditions.
Learn More5 Highlights on Commercial Foundations
Mat/raft slab foundations
large continuous slabs that distribute building loads across the entire footprint for unstable or variable soil conditions.
Strip foundations
continuous footings and grade beams for load-bearing wall construction and commercial buildings.
Pile foundations
concrete piles, drilled shafts, and driven piles for deep foundation support in challenging soil conditions.
Combined footings
trapezoidal and rectangular configurations for columns with unequal loads or property-line constraints.
Why Choose Our Commercial Foundations
Commercial foundations require engineering-level expertise. We work from structural drawings and coordinate with engineers, geotechnical consultants, and inspectors.
Our crews are experienced with large-scale concrete pours, complex reinforcement layouts, and the precision required for commercial foundation construction.
We maintain the equipment and workforce to handle commercial-scale excavation, forming, and concrete placement on schedule.
Signs You Need Commercial Foundations
1. New commercial construction
New buildings need foundations engineered for the specific structural loads, soil conditions, and building code requirements of the project.
2. Soil conditions require specialized foundation
Poor bearing capacity, high water table, or variable soil conditions may require mat, pile, or combined foundation systems.
3. Heavy structural loads
Multi-story buildings, heavy equipment, and high-density storage require foundations designed for concentrated loads.
Our Commercial Foundations Process
Step 1 — Plan & Geotech Review
Review structural drawings and geotechnical report. Confirm foundation type, dimensions, reinforcement, and concrete specifications.
Step 2 — Excavation & Dewatering
Excavate to required depth. Install dewatering systems if needed for high water table conditions.
Step 3 — Forming & Reinforcement
Set forms to engineered dimensions. Install rebar per structural drawings with proper spacing, cover, and splice details.
Step 4 — Pour & Inspection
Coordinate large-scale pour with batch plant and pump trucks. Place, vibrate, and finish concrete. Pass structural inspections.
Step 5 — Waterproofing & Backfill
Apply waterproofing systems as specified. Backfill with approved materials in controlled lifts.
Brands We Use
- CEMEX — high-strength ready-mix for commercial pours
- Euclid Chemical — admixtures for large pours
- Dayton Superior — commercial forming systems
- W.R. Meadows — commercial waterproofing
Our Work
FAQs About Commercial Foundations
What determines the type of commercial foundation needed?
Foundation type is determined by soil bearing capacity (from geotechnical investigation), structural loads, building height, water table depth, and local building code requirements. The structural engineer specifies the foundation system.
How long do commercial foundations take?
Timeline varies with foundation size and complexity. Small commercial footings may take 1-2 weeks. Large mat foundations or pile systems can take 4-8 weeks. We provide detailed schedules during the bidding process.
Pricing
$10 - $35
per sq ft
*Varies by project scope and site conditions.
Related Services
Leave Concrete to the Pros
Because with Legacy General Services,
You Get More Than a Guarantee
When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
Reputation
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
Transparency
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
Efficiency
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Quality
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.