Concrete for a 10x14 Slab
Order 1.90 yd with 10% waste — or 78 × 80 lb bags / 104 × 60 lb bags.
By thickness
| Thickness | Cubic yards | +10% waste | 80 lb bags | Typical use |
|---|---|---|---|---|
| 4" | 1.73 | 1.90 | 78 | Patio, shed pad, walkway |
| 5" | 2.16 | 2.38 | 98 | Light vehicle traffic |
| 6" | 2.59 | 2.85 | 117 | Driveway, garage |
Bags or the truck?
For this 140 sq ft slab at 4": bags ≈ $507 (78 × 80 lb — that's 6,240 lb of mixing) vs ready-mix ≈ $343 delivered. The truck wins here. Prices are national ballparks — your local quote rules.
Adjust the numbers
Common questions
How much concrete do I need for a 10x14 slab?
A 10x14 slab at the standard 4-inch thickness needs 1.73 cubic yards of concrete — order 1.90 yards with a 10% waste margin. At 6 inches it needs 2.59 yards.
How many bags of concrete for a 10x14 slab?
At 4 inches thick: 78 bags of 80 lb concrete mix or 104 bags of 60 lb. At this volume, delivered ready-mix is usually cheaper and far less work than mixing bags.
Should I use bags or ready-mix for a 10x14 slab?
Ready-mix. Bags for this slab would cost about $507 in material and require mixing 6,240 lb by hand; a delivered order runs roughly $343 and arrives ready to pour.