> >

Home Depot Concrete Calculator

Calculate exactly how much concrete you need for any slab — patios, driveways, garage floors, and more. Get cubic yards, bag counts, and a complete shopping list.

Advertisement — 728×90 Leaderboard

Calculate exactly how many bags of Quikrete or Sakrete to buy at Home Depot — with real 2026 pricing and built-in wastage.

Home Depot Concrete Bag Count Reference Table

Quick reference for common DIY project sizes — bag counts already include the 10% wastage buffer:

Project Size (4-inch slab) 80 lb Bags 60 lb Bags 2026 Cost (80lb)
4×4 ft patio (16 sq ft)10 bags14 bags~$68
8×8 ft pad (64 sq ft)40 bags53 bags~$272
10×10 ft patio (100 sq ft)62 bags83 bags~$420
10×20 ft shed pad (200 sq ft)123 bags165 bags~$835
12×20 ft driveway section148 bags197 bags~$1,003

Once you exceed 100 bags, the math shifts. A 12×20 ft driveway section in bags costs around $1,000 plus 4-5 trips with a pickup truck. The same pour delivered by a ready-mix truck costs $700-900 and arrives in 30 minutes ready to pour.

Home Depot vs Lowe's vs Local Supply — Where to Buy

Both big-box stores carry concrete, but selection and pricing differ:

  • Home Depot: Stocks Quikrete as the primary brand. Best for general concrete mix, fast-setting Quikrete (for fence posts), and crack-resistant mix. Pro Desk handles bulk pallet orders with free delivery on $1,500+ orders.
  • Lowe's: Stocks Sakrete primarily. Identical specs to Quikrete at slightly lower price points. Lowe's Pro program offers similar bulk delivery for contractors.
  • Local concrete supply yard: 30-50% cheaper than big box for bulk orders. Often the only option for specialty mixes (5000 PSI, fiber-reinforced, white concrete). Required for ready-mix delivery.
  • Tractor Supply / Menards (regional): Quikrete and Sakrete both available. Pricing competitive for the rural Midwest.

For projects under 30 bags, the price difference between stores is minimal — shop convenience. For projects over 50 bags, call a local concrete supply yard before you head to Home Depot. A bulk pallet (42 bags of 80lb Quikrete) typically saves $20-40 over individual bag prices at retail.

Bag Storage and Transport from the Home Depot Parking Lot

Concrete bags weigh real weight. Plan the trip home before you load up:

  • Pickup truck payload: Most half-ton trucks (F-150, Silverado 1500) safely carry 25-30 bags of 80lb concrete. That is 2,000-2,400 lbs — exactly at payload limit before passengers and tools.
  • SUV / sedan: Maximum 10-15 bags safely. Concrete bags WILL puncture and split if loaded into the cargo area of an SUV without plastic sheeting underneath. Use a trailer for anything over 15 bags.
  • Home Depot truck rental: $19 for 75 minutes. Easily carries 60+ bags. The math favors rental over multiple trips in a sedan.
  • Home Depot free delivery: Orders over $45 typically qualify for next-day truck delivery to your driveway. The $20-30 delivery fee beats your time on a 50-bag order.

Store bags off the ground on a pallet covered with a tarp. Concrete bags absorb moisture from the air and from concrete on the slab. A wet bag is a ruined bag — the powder partially hydrates and clumps before you ever open it.

Frequently Asked Questions

How many bags of concrete do I need from Home Depot for a 10×10 patio?
For a 10×10 patio at 4 inches thick, you need 62 bags of 80 lb Quikrete or 83 bags of 60 lb. This includes a 10% wastage buffer for spillage and form bulging. At 2026 Home Depot pricing (~$6.78 per 80lb bag), total concrete cost runs approximately $420 before sub-base gravel, forms, and rebar.
Is Quikrete from Home Depot the same as Sakrete from Lowe's?
Functionally identical at the same PSI rating. Both meet ASTM C387 specifications. Standard Quikrete is 3000 PSI at 28 days; standard Sakrete is 3500 PSI. The main practical difference is store availability — Home Depot stocks Quikrete, Lowe's stocks Sakrete. Mixing both brands in one pour is fine since they cure at the same rate.
Does Home Depot deliver concrete bags to my house?
Yes. Home Depot offers next-day or scheduled delivery on bag orders typically over $45. Delivery fee runs $20-30 depending on distance. For orders over 50 bags, delivery is almost always cheaper than the gas, time, and suspension wear of multiple pickup truck trips.
What is the cheapest way to buy concrete from Home Depot?
Buy by the pallet. A standard pallet of 42 bags of 80lb Quikrete typically saves $20-40 over individual bag prices. Pro Desk customers (free signup) get additional discounts on bulk orders. For projects over 1 cubic yard, ready-mix delivery from a local concrete plant is almost always cheaper than bagged concrete from any retail store.
Can I return unused concrete bags to Home Depot?
Yes, with original receipt and within 90 days. Bags must be in original sealed condition — once opened or punctured, they cannot be returned. Plan to order slightly over what the calculator shows (the 10% buffer is already built into our numbers) and return any unopened bags afterward.
Related Calculators
→ Quikrete Calculator→ How Many Bags Calculator→ Cost Calculator→ Slab Calculator