Bagged Concrete vs. Ready-Mix Delivery: When Each Makes Sense
As a rough practical guide, a project needing less than about 1 cubic yard of concrete is usually more economical and manageable using standard premixed bags (mixed on-site with water), while a project needing significantly more than that generally becomes more cost-effective and far less labor-intensive with a ready-mix truck delivery, since mixing dozens of individual bags by hand for a large pour is both extremely labor-intensive and harder to pour as a single, well-integrated batch.
There's no strict rule here, but this rough volume threshold reflects where the practical trade-offs between the two options typically flip.
Why bags work well for smaller volumes
For a small project like setting a few fence posts or a small stepping-stone path, bags offer flexibility (mix only what you need, when you need it) and avoid the minimum-order requirements and delivery scheduling that come with a ready-mix truck, which usually isn't practical for a very small volume anyway.
Why ready-mix becomes the better option at larger volumes
Mixing dozens of individual bags by hand for a full driveway or slab is extremely labor-intensive and time-consuming, and it's genuinely difficult to keep a large pour consistent when working in many small, separately mixed batches rather than one uniform delivery — a ready-mix truck delivers a single, professionally batched, consistent mix in one continuous pour.