Fast-Setting Concrete Cost & Calculator

Fast-setting concrete achieves initial set in as little as 20 minutes, making it ideal for setting posts and making repairs where time is critical. No mixing required for post setting - just pour dry and add water.

Unit Price

$8.50

per 50-lb bag

Labor Cost

$3.50

per 50-lb bag

Durability

40

years lifespan

Sustainability

2/5

Below Average

Category: Concrete
Range: $6.00$12.00/50-lb bag
Waste Factor: 8%
Avg Project: $600

Fast-Setting Concrete Cost Calculator

1 50-lb bag1,000 50-lb bags

Order quantity: 108 50-lb bags (100 + 8% waste)

Material Cost

$918

incl. $68 waste buffer

Labor Cost

$378

Total Estimated Cost

$1,296

Based on 108 50-lb bags at $8.50/50-lb bag + $3.50/50-lb bag labor. Actual costs vary by location and supplier.

Specifications

Set Time20-40 minutes
Walk-on Time4-6 hours
Compressive Strength4,000 psi at 28 days
Bag Size50 lbs

Price Comparison with Alternatives

MaterialPriceDurabilitySustainabilityCost/Year
Fast-Setting Concrete (current)$8.50/50-lb bag40 yrs2/5$0.21
Bagged Concrete Mix$6.50/80-lb bag50 yrs2/5$0.13
Ready-Mix Concrete$140.00/cubic yard50 yrs2/5$2.80

Cost/Year = unit price divided by expected lifespan. Lower cost/year indicates better long-term value. Note: units may differ between materials.

Best Uses

  • Fence posts
  • Mailbox posts
  • Emergency repairs
  • Cold weather pours

Material Details

Average Project Cost

$600

Typical project using this material

Sustainability Rating

Below Averageconsider greener alternatives

Waste Factor

8%

Order 8% extra to account for cuts, breakage, and fitting

Fast-Setting Concrete: Complete Buying Guide 2026

Fast-setting concrete achieves initial set in as little as 20 minutes, making it ideal for setting posts and making repairs where time is critical. No mixing required for post setting - just pour dry and add water. In 2026, fast-setting concrete prices average $8.50 per 50-lb bag, with a typical range of $6.00 to $12.00 depending on your region, supplier relationships, and order quantity.

When budgeting for a project using fast-setting concrete, factor in approximately 8% additional material for waste, plus labor costs averaging $3.50 per 50-lb bag for professional installation. A typical project using this material runs approximately $600 including both materials and labor.

With an expected lifespan of 40 years, fast-setting concrete represents a cost of approximately $0.21 per 50-lb bag per year of service life. This solid lifespan provides good value for most residential and commercial applications.

Explore All 100 Construction Materials

Compare prices, specs, and sustainability ratings across lumber, concrete, steel, roofing, insulation, flooring, and more.

View All Materials

Frequently Asked Questions

Related Calculators