Sources belong next to the numbers.

Current references

• ACI 318 PLUS
  Official access point for current structural-concrete code and detailing resources.
• ACI Committee 330
  Concrete site-paving specifications and industry scope.
• ACI Reinforced Concrete Design Handbook
  Industry reference confirming footing design is separate from quantity takeoff.
• American Cement Association — Applications of Cement
  Concrete pavement and lifecycle context.
• American Cement Association — Working with Concrete
  Coordinated, time-sensitive placement and finishing context.
• American Fence Association — Consumer Resources
  Industry context for professional fencing systems and planning.
• American Hardwood Export Council Species Guide
  Industry board-foot measurement reference.
• Angi Asphalt Driveway Cost Guide
  Market context used to review the editable price defaults.
• Angi Concrete Driveway Cost Guide
  Market context used to review the editable price defaults.
• Angi Concrete Slab Cost Guide
  Market context used to sanity-check the editable national planning range.
• Angi Fence Installation Cost Guide
  Market context used to review editable price presets.
• Angi Paver Patio Cost Guide
  Market context used to review the editable installed-cost range.
• Asphalt Institute — Full-Depth Asphalt for Private Driveways
  Residential subgrade, drainage, and pavement context.
• Asphalt Institute Engineering FAQs
  Compaction and maintenance guidance.
• BEHR — paint calculator
  Manufacturer estimating context. Enter coverage from the specific paint label.
• BLS — Regional Ready-Mix Concrete Indexes
  Evidence that concrete price movement varies regionally.
• BLS Producer Price Index Detailed Reports
  Price-change context, not installed-price levels.
• Brick Industry Association — dimensioning and estimating
  Masonry modules and unit dimensions for quantity estimating.
• CMHA — Concrete Masonry Basement Wall Construction
  Industry rule of thumb of 113 standard CMUs per 100 ft² and mortar context.
• CMHA — construction of interlocking concrete pavements
  Pavement layer context; use the actual project specification for layer depths.
• CMHA — Modular Layout of Concrete Masonry
  Industry reference for nominal modules, typical dimensions, and 3/8 in joints.
• CMHA Application Guide
  Interlocking pavement system and application context.
• CMHA Interlocking Concrete Pavement Maintenance Guide
  Maintenance and reinstatement guidance.
• CRSI Standards
  Reinforcing-steel authority for design, detailing, fabrication, placement, and construction standards.
• EPA — Types of Green Infrastructure
  Distinguishes conventional pavement from designed permeable systems.
• FHWA Gravel Roads Manual
  Technical context for aggregate, drainage, and compaction.
• Graham & Brown — measuring for wallpaper
  Roll quantities depend on wall measurements, matching, and pattern repeat.
• Interlocking Concrete Pavement Institute Resources
  Industry installation and pavement-system context.
• International Residential Code
  Code context; local adoption and amendments control.
• International Residential Code — Building Planning
  Baseline residential stair provisions; verify the locally adopted code and amendments.
• Mulzer Crushed Stone — aggregate calculator
  Supplier context for material-dependent bulk density and estimating limits.
• National Asphalt Pavement Association — Asphalt Paving Handbook
  Industry reference for paving, lift thickness, and compaction context.
• NCMA Segmental Retaining Wall Resources
  Industry guidance on segmental retaining-wall planning and construction.
• NIST — SI units: volume
  Unit relationships; supplier product coverage and prices remain separate inputs.
• NIST Handbook 44 — Units of Measure
  US customary and metric unit references.
• NIST SI Units — Mass
  Unit reference for mass conversions.
• NRMCA — Concrete Driveways
  Industry practice context for concrete placement.
• NRMCA — Concrete in Practice
  Ready-mix practice and project planning context. Not a source for the example prices.
• NRMCA Pre-Construction Checklists
  Ordering, delivery, placement, and responsibility planning.
• Owens Corning — Woodcrest product data
  Illustrates why installed bundle coverage is product specific; not all shingles use three bundles per square.
• Pennington — Smart Seed Sun and Shade
  Example of product-specific coverage that differs between new seeding and overseeding.
• Pergo — installation guides
  Use installation instructions for the particular flooring product.
• QUIKRETE — concrete mix data sheet
  Nominal bag yields for this product. Other mixes can have different yields.
• QUIKRETE — Footers for Walls
  Manufacturer context and reminder to verify frost depth and local specifications.
• QUIKRETE — Pouring Concrete Slabs
  Shows work beyond concrete material alone.
• QUIKRETE — QUIK-TUBE Pillar Foundations
  Manufacturer cylinder formula and bag-per-foot examples.
• QUIKRETE — Setting Posts in Concrete
  Manufacturer instructions for general hole proportions, gravel, and fill level.
• QUIKRETE Concrete Calculator
  Manufacturer bag-planning reference.
• QUIKRETE QUIK-TUBE Data Sheet
  Form applications, sizes, and capacity table.
• Trex — deck board spacing
  Board spacing depends on the product and installation method.
• University of Minnesota Extension — mulching
  Organic and inorganic mulch behavior; application depth depends on the landscape.
• University of Minnesota Extension — NPK calculations
  Converting a nutrient recommendation into product weight using the label percentage.
• University of Minnesota Extension — soil testing
  Soil and nutrient needs should be assessed before choosing amendments.
• USG — estimators
  Manufacturer wallboard quantity tools; assembly and installation details are separate.
• VDOT — Reinforcing Steel, Chapter 7
  Official table of U.S. bar dimensions, areas, weights, and detailing references.

How sources are used