Plan Louisiana Concrete Quantity Before You Order
Use this Concrete Calculator in Louisiana to estimate concrete for slabs, patios, driveways, sidewalks, footings, piers, walls and curbs. Calculate cubic yards, cubic feet, cubic meters, approximate concrete bags and optional ready-mix material cost before contacting a local supplier.
Choose the shape that best matches your project and enter actual finished dimensions.
Estimate concrete for rectangular patios, pads, floors and similar slab-on-ground projects.
Material estimate only. Verify thickness, reinforcement, base, joints, drainage, permits and structural requirements separately.
Estimate rectangular driveway, sidewalk, walkway or replacement-panel concrete.
If work touches the public right-of-way, verify Louisiana permits, standard plans and inspection requirements before starting.
Choose a continuous rectangular footing or a round pier / post footing.
Volume only. Footing dimensions, reinforcement, soil bearing, structural design and structural compliance require project-specific design.
Estimate linear wall, stem wall, curb or similar rectangular concrete sections.
Material volume only. Verify wall, retaining, curb and right-of-way requirements before construction.
Convert project dimensions into the standard ready-mix ordering unit.
Approximate 40, 60 and 80 lb bag quantities for smaller Louisiana projects.
Use a local supplier quote and plan truck access before placement day.
Check Louisiana permits and standard plans when work affects regulated construction or public right-of-way.
A Concrete Calculator in Louisiana helps homeowners, contractors, estimators and property managers turn project dimensions into a practical material quantity. Whether the work is a backyard patio, residential driveway, sidewalk replacement, garage slab, footing, pier, retaining-wall footing or curb section, the starting point is concrete volume.
This Louisiana concrete calculator supports several common shapes because local projects are not all simple slabs. The Slab & Patio calculator handles rectangular flatwork. Driveway & Sidewalk is optimized for longer rectangular pours. Footing & Pier switches between a continuous footing and round pier geometry. Wall & Curb calculates long rectangular concrete sections.
The result shows exact mathematical volume and an adjusted planning quantity after the user-selected extra percentage. It also converts the order into cubic feet, cubic yards and cubic meters, estimates common bag quantities, and can multiply the cubic-yard quantity by a price entered from a local ready-mix quote.
The quantity depends entirely on finished dimensions and thickness. A concrete slab is calculated by multiplying length × width × thickness after putting every measurement into compatible units. Since ready-mix concrete in the United States is normally discussed in cubic yards, cubic feet are divided by 27.
Cubic yards = cubic feet ÷ 27.
A 20 ft × 12 ft patio that is 4 inches thick contains 80 cubic feet of concrete mathematically. That is about 2.96 cubic yards before any extra allowance. The calculator then applies the percentage you enter to create a planning order quantity.
Do not confuse square footage with concrete volume. Square feet describe surface area; concrete orders also require thickness. A 240-square-foot slab at 4 inches thick requires substantially less concrete than the same 240-square-foot slab at 6 inches thick.
Louisiana concrete quantity planning can include patios, slabs, driveways, sidewalks, house foundations, elevated-building footings, piers, equipment pads, retaining-wall footings, curb work, commercial site concrete and transportation-related concrete. Conditions vary across south Louisiana, central Louisiana and north Louisiana, so project geometry, soil, drainage, flood exposure, weather and local jurisdiction should be considered separately from the basic material-volume estimate.
Concrete quantity is only one part of a compliant Louisiana construction project. The Louisiana State Uniform Construction Code Council (LSUCCC) is the state body responsible for the uniform construction-code system, while local permit authorities and code-enforcement officials administer project review and inspections within their jurisdictions.
LSUCCC training and implementation materials identify Louisiana's 2021 energy-code update with Louisiana amendments and show that review activity is underway for the 2024 I-Codes and 2023 NEC. Because state code adoption and amendments can change, verify the currently effective construction code and local amendments for the project location before relying on a particular code edition.
Use the official Louisiana State Uniform Construction Code Council and its code-review and training announcements for current statewide code information.
Concrete work in a driveway approach, sidewalk, curb, gutter, state highway or public right-of-way can be regulated by a parish, municipality, state agency or roadway owner. A statewide calculator cannot determine which permit, standard drawing or pavement section controls a specific address.
For Louisiana Department of Transportation and Development projects, DOTD publishes Standard Specifications and Standard Plans. The 2026 Louisiana Standard Specifications for Roads and Bridges became effective January 1, 2026 for projects letting in 2026, and the current specification set includes dedicated parts for rigid pavements, incidental construction, structures and Portland cement concrete.
Review the official Louisiana DOTD Specifications and Standard Plans & Special Details when the work is governed by DOTD. For local projects, verify city or parish requirements separately.
For a basic rectangular patio, measure the finished length and width inside the forms and enter the planned thickness. If the patio is L-shaped, divide it into rectangles, calculate each section and add the volumes. If it contains a circular section, use the Round Concrete Slab Calculator.
Before placing concrete, verify grading and drainage. A material calculator cannot tell you where runoff should go or whether a patio elevation conflicts with doors, vents, weep screeds, property drainage or other building details.
For a pool-area project, use the Concrete Pool Deck Calculator. For a tapered transition, use the Concrete Wedge Calculator.
A driveway quantity estimate needs length, width and thickness. If the driveway changes width, calculate separate sections rather than using one rough dimension. Thickened edges, aprons, curb transitions or replacement panels should also be calculated separately if their geometry differs.
Do not use this page to select driveway thickness or reinforcing. Vehicle loading, base conditions, jointing, site drainage, project plans and public-works details can all matter. If the work reaches the city sidewalk, curb or street interface, confirm the applicable State of Louisiana requirements before demolition or placement.
For joint planning after the dimensions are known, use the Concrete Joint Spacing Calculator and Concrete Saw Cut Calculator.
Continuous footings use rectangular volume. The calculator converts footing width and depth from inches into feet, multiplies them by length and then converts the result to cubic yards.
Round piers use cylinder geometry. Their volume equals π × radius² × depth × quantity. Enter the actual diameter and depth shown on the project design rather than choosing a size from the calculator.
Diameter must be divided by two to obtain radius.
For preliminary footing geometry calculations, use the Concrete Footing Size Calculator. For reinforcing placement, see the Concrete Cover Calculator and Concrete Rebar Spacing Calculator.
This statewide Concrete Calculator in Louisiana can be used for projects in New Orleans, Baton Rouge, Shreveport, Lafayette, Lake Charles, Kenner, Bossier City, Monroe, Alexandria, Houma, Slidell, Hammond and smaller communities throughout the state. The concrete-volume formula does not change by city, but supplier pricing, delivery distance, permit authority, flood conditions, site access, local amendments and public-works standards can differ.
For projects inside a municipality, verify local building, zoning, drainage and public-works requirements in addition to statewide construction-code rules. For unincorporated areas, confirm parish requirements. Projects on state highways, levee systems, port property, federal property or other specially regulated sites may require separate approvals.
Use this page for quantity and ordering preparation, then match the calculated dimensions to the approved plans and requirements for the actual site.
Louisiana projects can involve flood-prone property, high groundwater, poor drainage or elevated-building requirements. A cubic-yard calculator does not determine finished-floor elevation, flood design elevation, pile requirements, grade beams, drainage slopes or foundation type.
If the project is in a mapped flood hazard area or is subject to local floodplain regulations, obtain the required elevation and foundation information before estimating concrete. A change from a simple slab-on-ground to grade beams, piers, stem walls or elevated structural concrete can substantially change the concrete quantity.
Calculate each foundation component separately and use the dimensions shown on the approved project documents.
Concrete prices are not hard-coded into this calculator because Louisiana ready-mix rates, haul distance, minimum-load policies, fuel charges, delivery zones, mix specifications, waiting time, pumping and storm-related scheduling can vary by supplier and location. Enter the price per cubic yard from a current local supplier quote to calculate a simple material estimate.
The resulting cost covers only the entered cubic-yard rate. It does not automatically include labor, reinforcement, forms, base material, demolition, haul-off, pumping, line-pump setup, short-load charges, permits, inspections, finishing or curing.
For delivery logistics, use the Concrete Delivery Distance Calculator. For placement duration, use the Concrete Pour Time Calculator.
Small repairs and pads may be practical with bagged concrete. Large patios, driveways and foundation pours can require many bags, which increases handling and mixer-cycle time. The calculator provides approximate counts for 40 lb, 60 lb and 80 lb bags using typical planning yields, but the actual bag yield printed by the manufacturer should control purchasing.
If a project needs many mixer batches, use the Concrete Mixer Size Calculator to compare mixer capacity and approximate batch count. For ready-mix work, coordinate delivery rate with your crew and placement method so concrete does not arrive faster than it can be handled.
Louisiana concrete placement can involve hot, humid conditions, direct sun, heavy rain risk and rapidly changing storm-season weather. Temperature, concrete temperature, relative humidity, wind, precipitation risk and site drainage should be checked for the actual project location and pour date rather than inferred from a statewide average.
Use the Concrete Hot Weather Calculator to compare hot-weather environmental inputs for planning. When cooler winter conditions occur, use the Concrete Cold Weather Calculator. Actual placement, protection, finishing and curing should follow the ready-mix supplier, approved project specifications and applicable professional guidance.
Concrete requires a thickness dimension. Square footage alone cannot determine cubic yards.
A 4-inch slab is 0.3333 foot thick, not 4 feet.
Turn-down edges, footings, curbs and thickened strips can add significant volume beyond the main slab.
Excavation and forming can change project dimensions. Calculate from final geometry before ordering when possible.
The volume estimate does not authorize construction or determine code compliance.
| Project | Dimensions | Exact Volume | Before Extra Allowance |
|---|---|---|---|
| Small Patio | 10 × 10 ft × 4 in | 33.33 ft³ | 1.23 yd³ |
| Patio | 20 × 12 ft × 4 in | 80.00 ft³ | 2.96 yd³ |
| Walkway | 40 × 4 ft × 4 in | 53.33 ft³ | 1.98 yd³ |
| Driveway Section | 30 × 12 ft × 5 in | 150.00 ft³ | 5.56 yd³ |
| Garage Slab | 20 × 20 ft × 4 in | 133.33 ft³ | 4.94 yd³ |
These examples are mathematical references only. Calculate your actual dimensions and project thickness.
Louisiana construction permits are generally administered through the authority having jurisdiction over the property, so the correct permit office can vary by parish and municipality. Before a concrete pour, confirm whether footing, foundation, reinforcement, formwork or other work must be inspected before it is concealed.
The Louisiana State Licensing Board for Contractors (LSLBC) administers contractor licensing. Its licensing checklist requires applicants to complete the applicable licensing process and designate a qualifying party, with trade exams or credentials required where applicable. Owners hiring a contractor can use the state licensing board's resources to verify contractor status.
For regulated contracting, use the official Louisiana State Licensing Board for Contractors and its licensing requirements checklist. For state transportation work, use current DOTD specifications and project plans.
Use the Concrete Volume Calculator for general geometry, the Round Concrete Slab Calculator for circular pads, and the Concrete Cubic Yard Calculator for direct yard conversions.
For reinforcing, see the Concrete Rebar Calculator, Concrete Rebar Spacing Calculator and Concrete Cover Calculator. For scheduling and logistics, use the Concrete Pour Time Calculator and Concrete Delivery Distance Calculator.
Measure final dimensions, convert them to volume, plan delivery access and verify State / local requirements where applicable.
Common questions about concrete yards, bags, local permits and Louisiana project planning.