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Free Brick / Block / Paver Calculator

Calculate exact brick, block, or paver quantities with mortar, sand, base material, and waste factors for any project

Professional brick calculator and paver calculator for masons, hardscapers, and DIY builders. Select from 6 application types (wall, patio, driveway, walkway, fire pit, retaining wall) and 10 material options including standard brick, modular brick, concrete paver, natural stone, and CMU block. Choose from 7 laying patterns (running bond, herringbone, basketweave, stack bond, and more) with accurate waste factors for each pattern. Calculates mortar volume, joint sand, base aggregate, and edge restraint quantities with cost estimates based on material prices.

Pro Tip: Pattern selection significantly affects waste. Running bond (offset half) wastes 5-8% due to half-cuts at edges. Herringbone at 45 degrees wastes 10-15% because every perimeter unit requires an angle cut. Basketweave and stack bond waste only 2-5% since most edge cuts are simple halves. Always order 10% extra beyond the calculated waste factor to account for breakage during delivery and cuts that do not split cleanly. It is far cheaper to return unused pavers than to reorder a small quantity with a different dye lot.

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Brick / Block / Paver Calculator
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How It Works

  1. Select Application Type

    Choose the project type: wall, patio, driveway, walkway, fire pit, or retaining wall. Each application sets appropriate defaults for base depth, joint width, and structural requirements.

  2. Enter Dimensions

    Input the project area in length and width for flat work, or length and height for walls. For irregular shapes, break the area into rectangles and calculate each section separately. The calculator accepts square feet or individual dimensions.

  3. Choose Material and Size

    Select from standard brick (3-5/8 x 2-1/4 x 8 in), modular brick, king size, concrete paver (various sizes), natural stone, or CMU block. Custom unit dimensions can be entered for specialty products.

  4. Select Laying Pattern

    Choose running bond, herringbone 90, herringbone 45, basketweave, stack bond, pinwheel, or random. Each pattern has a specific waste factor that is added to the base quantity. Herringbone 45 has the highest waste but provides the strongest interlock for driveways.

  5. Review Quantities

    The calculator shows total units needed (including waste), mortar bags or joint sand volume, base aggregate in tons, edge restraint in linear feet, and any polymeric sand needed for paver joints. All quantities include the pattern-specific waste factor.

  6. Estimate Costs

    Enter unit prices for materials or use default regional averages. The cost summary breaks down material costs by category: units, mortar/sand, base, edge restraint, and accessories. Add labor cost per square foot for a complete project estimate.

Built For

  • Masons estimating brick quantities and mortar for residential and commercial wall projects
  • Hardscape contractors calculating paver quantities for patio and driveway installations
  • Homeowners planning DIY paver walkway or patio projects with accurate material lists
  • Landscape architects specifying material quantities for hardscape bid packages
  • Building material suppliers verifying customer order quantities before delivery

Assumptions

  • Unit dimensions match standard ASTM sizes for the selected material type.
  • Mortar joint width is uniform throughout the project area.
  • Waste factors reflect typical field conditions for each laying pattern.
  • Base material compaction achieves 95% Standard Proctor density.

Limitations

  • Does not perform structural analysis for retaining walls or load-bearing masonry.
  • Irregular shapes must be broken into rectangular sections for accurate quantity takeoffs.
  • Cost estimates use regional averages and may not reflect local material pricing.

References

  • Brick Industry Association (BIA) Technical Note 10 - Dimensioning and Estimating Brick Masonry
  • ICPI (Interlocking Concrete Pavement Institute) Tech Spec 2 - Construction of Interlocking Concrete Pavements
  • NCMA TEK 6-1B - Estimating Concrete Masonry Units and Related Materials

Frequently Asked Questions

For standard modular brick (3-5/8 x 2-1/4 x 7-5/8 inches) laid in a wall with 3/8-inch mortar joints, you need approximately 6.75 bricks per square foot of wall face. For a paver application (brick laid flat without mortar), you need about 4.5 standard bricks per square foot. These numbers vary by brick size and joint width. The calculator provides exact counts based on your selected brick dimensions and joint specifications.
For standard modular brick with 3/8-inch joints in running bond, plan on approximately 7-8 bags (80 lb) of premixed mortar per 1,000 bricks for a single wythe wall. Thicker joints, larger bricks, or butter joints increase mortar consumption. Type S mortar is standard for exterior walls and below grade; Type N is suitable for above-grade, non-load-bearing walls. The calculator computes mortar volume based on your exact joint dimensions and brick size.
Herringbone pattern at 90 degrees to the border wastes about 8-10% due to cuts at the perimeter. Herringbone at 45 degrees wastes 12-15% because every edge unit requires an angle cut. These are the highest waste patterns but provide the best interlock and load distribution, making them ideal for driveways and vehicle traffic areas. The calculator automatically applies the correct waste factor based on your pattern selection.
For a pedestrian patio, the standard base depth is 6 inches of compacted aggregate (4 inches crushed stone plus 1 inch setting bed sand, with pavers adding another 2-3 inches). Driveways require 8-12 inches of compacted aggregate base depending on soil conditions and traffic loads. Clay soils and areas with freeze-thaw cycles need deeper bases. The calculator recommends base depth based on application type and adjusts aggregate quantities accordingly.
Yes. All paver installations require edge restraint to prevent lateral spreading. Without edge restraint, pavers will shift outward over time, opening joints and allowing weed growth. Common options include aluminum or plastic paver edging (anchored with 10-inch spikes every 12 inches), concrete curbing, or existing structures like building foundations. The calculator estimates edge restraint in linear feet based on your project perimeter.
Polymeric sand consumption depends on joint width, paver thickness, and joint depth. For standard 3/16-inch joints on 2-3/8-inch thick pavers, plan on approximately 1 bag (50 lb) per 60-80 square feet. Wider joints (1/4 inch or more) or thicker pavers increase consumption significantly. The calculator estimates polymeric sand based on your specific joint dimensions. Apply polymeric sand only to clean, dry joints and activate with a fine mist per manufacturer instructions.
Yes. Select the retaining wall application type and enter the wall length and height. The calculator supports segmental retaining wall (SRW) blocks, natural stone, and CMU. For SRW blocks, it calculates face units, cap units, geogrid requirements for walls over 3 feet, and backfill aggregate. Note that retaining walls over 4 feet typically require engineering design and permits. This calculator provides material estimates, not structural engineering.
Disclaimer: This calculator provides material quantity estimates based on standard unit dimensions and industry waste factors. Actual quantities may vary due to site conditions, cutting accuracy, and material variability. Always order additional material to account for breakage and color matching. Retaining walls over 4 feet require engineering design. ToolGrit is not responsible for material shortages or structural performance.

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