10×18 Concrete Slab (6 inches): Yards, Feet & Bags
This 10 ft x 18 ft slab is perfect for a patio or as a gazebo base. Decide between bags or ready-mix based on your access and waste considerations.
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Quick Answer
Tip: Always confirm the yield printed on your bag label. Bag yield guide
Large pour: consider ready-mix delivery for speed and consistent results. Bag counts this high can take significant mixing time.
Project Notes (Unique)
Round to 0.25 yd³ when ordering and ensure you check yield on the label for accurate delivery quantities.
Ensure the base is well-prepared and consider thickened edges for added strength.
Apply a smooth finish and keep the slab moist during curing for optimal strength.
How to Estimate This Slab in 3 Steps
Measure
Length 10 ft, width 18 ft, thickness 6 in.
Compute Volume
Area: 180 sq ft → volume: 90.0 ft³ → 3.33 yd³.
Add Waste
Add a small buffer for spillage and uneven subgrade, then round up when ordering.
Planning Notes
Common uses: patio, gazebo base, walkway section.
For more context and conversions, see the Concrete Calculator hub.
Frequently Asked Questions
What should I consider when choosing between bags and ready-mix concrete?
Consider your project size, access to the site, and whether you prefer the convenience of ready-mix or the flexibility of bags.
How do I prepare the base for my concrete slab?
Ensure the base is level, compacted, and free of debris to provide a solid foundation for the slab.
What thickness should I choose for my concrete slab?
A thickness of six inches is generally suitable for patios and walkways, but consider the load it will bear.
How can I minimize waste when ordering concrete?
Always plan for a little extra to account for spillage or miscalculations, and round your order up accordingly.
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