Ready-Mix vs Bagged Concrete: Cost Comparison Guide

One of the first decisions you face when planning a concrete project is whether to buy bags of pre-mixed concrete and mix them yourself, or order ready-mix concrete delivered by truck. Both options have clear advantages depending on your project size, budget, and timeline. This guide breaks down the costs, practicalities, and trade-offs so you can make an informed choice.

Understanding Bagged Concrete

Bagged concrete is a pre-blended mix of cement, sand, and gravel sold in bags ranging from 20 kg to 80 lbs (about 36 kg). You add water, mix it (by hand or with a mixer), and pour it into your forms. It is available at virtually any hardware store and is the default choice for small projects.

The typical price for an 80 lb bag in the United States ranges from $4.50 to $7.00 depending on the brand, store, and region. At approximately $5.50 per bag and 45 bags per cubic yard, bagged concrete costs roughly $247 per cubic yard for materials alone. However, this does not account for your time mixing and pouring, which can be substantial for larger volumes.

Bagged concrete works best for projects under one cubic yard — think fence post holes, small footings, patching work, or a set of steps. The main advantages are availability, no minimum order, and the ability to work at your own pace. You can mix one bag at a time over several days if needed.

Understanding Ready-Mix Concrete

Ready-mix concrete is manufactured at a batching plant and delivered to your site in a rotating drum truck. The concrete arrives already mixed to specification — you just direct it into your forms. A typical delivery costs $120 to $200 per cubic yard depending on the mix design, delivery distance, and local market conditions.

Most ready-mix companies have a minimum order, often around 1 cubic yard, and may charge a short-load fee (typically $30 to $75) for orders under 3 cubic yards. Even with these fees, ready-mix becomes significantly cheaper per yard for medium to large projects.

The key advantage of ready-mix is speed and consistency. A truck can deliver several cubic yards in minutes, with a professionally mixed product of known strength. For a driveway or large slab, ready-mix is the only practical option — mixing 100+ bags by hand would take an entire weekend and produce uneven results.

Cost Comparison by Project Size

Here is a realistic cost comparison for different project sizes, using average US pricing in 2025. Prices are estimates and vary significantly by region — always get local quotes.

The crossover point where ready-mix becomes cheaper than bags is typically around 0.75 to 1.0 cubic yards. Beyond that, the cost advantage of ready-mix only grows. Use our concrete calculator to run the exact comparison for your project dimensions and local prices.

Quality and Consistency

Ready-mix concrete is batched under controlled conditions with precise water-to-cement ratios, producing a consistent product that meets specified strength targets (typically 3,000 to 4,000 PSI for residential work). Each batch is tested and can be customized with admixtures for specific needs — faster setting, fiber reinforcement, or air entrainment for freeze-thaw resistance.

Bagged concrete, when mixed correctly, also produces good results. However, hand-mixing introduces variability. Over-adding water (the most common DIY mistake) weakens the concrete significantly. Under-mixing leaves dry pockets. If you choose bags, follow the instructions precisely and use a mechanical mixer for any quantity over a few bags.

Practical Considerations

• Access: Ready-mix trucks are large. If the truck cannot reach your pour site, you will need a concrete pump (additional cost) or wheelbarrows.
• Timing: Ready-mix must be poured within 60 to 90 minutes of batching. You need your forms, reinforcement, and crew ready before the truck arrives.
• Weather: Both options are affected by weather. Do not pour in rain or when temperatures will drop below freezing within 24 hours.
• Strength: If your project has specific strength requirements (e.g., a structural footing), ready-mix with a guaranteed PSI rating may be required by code.

When to Choose Bags

Choose bagged concrete when your project requires less than 0.75 cubic yards, when you need to work in stages over multiple days, when truck access is impossible, or for repairs and patch work. Bags are also better for projects where you are setting items in concrete (fence posts, mailbox posts) one at a time.

When to Choose Ready-Mix

Choose ready-mix when your project requires more than 1 cubic yard, when time is limited (you need to pour the entire area in one session), when consistent strength is critical, or when the labor cost of mixing bags exceeds the delivery fee. For any slab larger than roughly 8×8 feet at 4 inches thick, ready-mix is almost always the practical choice.

For more on estimating quantities, see our how much concrete guide. If you are working in metric units, check our metric calculator guide.

Frequently Asked Questions

When should I use ready-mix instead of bags?

Ready-mix is typically more cost-effective and practical for projects requiring more than 1 cubic yard of concrete. Below that threshold, bagged concrete is usually cheaper and easier to manage without needing to coordinate a delivery.

How many bags of concrete make a cubic yard?

It takes approximately 45 bags of 80 lb concrete or 60 bags of 60 lb concrete to make one cubic yard. The exact number depends on the bag size — check the coverage listed on the bag or use our calculator for precise counts.