Proven Plaza Calculators & Open Data

Reviewed 52m ago.

• tools: 27 tools scanned
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Tools (27)

• calc_concrete_slab

  Estimate ready-mix cubic yards or the number of 80 lb bags for a rectangular slab, patio or driveway. Formula: Cubic yards = Length(ft) × Width(ft) × Thickness(in)/12 ÷ 27 × (1 + waste%). Bags = cubic feet ÷ bag yield.

• calc_concrete_column

  Concrete needed for round columns, piers and tube forms (sonotubes). Uses cylinder volume, which differs from slab math. Formula: Cubic feet = π × (diameter(in)/24)² × height(ft) × count; cubic yards = cu ft ÷ 27 × (1 + waste%).

• calc_concrete_footing

  Volume for continuous trench/wall footings where width is in inches and length runs the full perimeter. Formula: Cubic yards = Length(ft) × Width(in)/12 × Depth(in)/12 ÷ 27 × (1 + waste%).

• calc_paint

  Gallons of wall paint from room perimeter and height, minus doors and windows, for any number of coats. Formula: Paintable area = perimeter × height − 20 sq ft per door − 15 sq ft per window. Gallons = area × coats ÷ label coverage.

• calc_roofing

  Roof area from the house footprint and pitch, converted to roofing squares (100 sq ft) and shingle bundles. Formula: Pitch factor = √(1 + (rise/12)²). Roof area = (L + 2×overhang) × (W + 2×overhang) × pitch factor. Squares = area ÷ 100 × (1 + waste%).

• calc_drywall

  Number of drywall sheets for walls and optionally the ceiling. Formula: Sheets = (perimeter × height + ceiling area) × (1 + waste%) ÷ sheet area.

• calc_flooring_tile

  Square footage plus waste and number of boxes for tile, laminate, vinyl plank or hardwood. Formula: Area = L × W; to buy = area × (1 + waste%); boxes = to buy ÷ coverage per box.

• calc_mulch_gravel

  Cubic yards (and optional tons) of mulch, gravel, sand or soil for a bed or path. Formula: Cubic yards = L(ft) × W(ft) × depth(in) ÷ 324 (since 27 cu ft × 12 in = 324). Tons = cu yd × supplier density.

• calc_voltage_drop

  Voltage drop for a single- or three-phase run using NEC Chapter 9 Table 8 conductor sizes. Formula: VD = 2 × K × I × L ÷ CM (single phase) or √3 × K × I × L ÷ CM (three phase); K = ohm·cmil/ft (approx. 12.9 Cu, 21.2 Al); CM from NEC Ch. 9 Table 8.

• calc_ac_btu

  Room air-conditioner capacity using the ENERGY STAR sizing chart and its adjustments for sun, occupants and kitchens. Formula: Base BTU from the ENERGY STAR area chart; −10% heavily shaded, +10% very sunny, +600 BTU per person above 2, +4,000 BTU for a kitchen.

• calc_deck_board

  Number of deck boards for a rectangular deck, accounting for board width and gap. Formula: Rows = ⌈width(in) ÷ (board width + gap)⌉; boards = rows × ⌈deck length ÷ board length⌉ × (1 + waste%).

• calc_fence

  Posts, rails and pickets for a straight run of wood privacy or picket fence. Formula: Sections = ⌈length ÷ spacing⌉; posts = sections + 1 + gates; pickets = ⌈length(in) ÷ (picket width + gap)⌉.

• calc_insulation_r_value

  Thickness needed to reach a target R-value for the R-per-inch printed on your insulation product. Formula: Thickness(in) = target R ÷ R per inch. Volume in board feet = area(sq ft) × thickness(in).

• calc_pool_volume

  Gallons in a rectangular pool with a sloped bottom, using average depth. Formula: Gallons = L × W × (shallow + deep)/2 × 7.48052 gal/cu ft.

• calc_round_pool_volume

  Gallons in a round or above-ground pool. Formula: Gallons = π × (D/2)² × average depth × 7.48052 (≈ D² × depth × 5.875).

• calc_oval_pool_volume

  Gallons in an oval (elliptical) pool. Formula: Gallons = π × (L/2) × (W/2) × average depth × 7.48052.

• calc_solar_panel

  Panels needed to offset annual electricity use, from panel wattage, peak sun hours and system losses. Formula: Annual kWh per panel = W/1000 × peak sun hours × 365 × (1 − losses). Panels = ⌈annual use ÷ kWh per panel⌉.

• calc_board_foot

  Board feet and cost for hardwood or dimensional lumber. Formula: Board feet = thickness(in) × width(in) × length(ft) ÷ 12 × pieces (one board foot = 144 cubic inches).

• calc_asphalt

  Tons of hot-mix asphalt for a driveway or lot from area, compacted depth and mix density. Formula: Tons = L × W × depth(in)/12 × density(lb/cu ft) ÷ 2,000.

• ai_crawler_audit

  Check a public site robots.txt for AI crawler allow/deny verdicts.

• sitemap_urls

  Extract URLs from a public sitemap (follows sitemap indexes).

• fl_contractor_licenses

  Florida DBPR contractor licenses (public extract files).

• sofl_permits

  South Florida building permits (public open-data sources).

• federal_awards

  Federal awards via USAspending.gov API.

• offer_list

  List offers in the agent GEO pack (ids + names + status). Read-only.

• offer_flagship

  Managed AI Front Office (flagship retainer) facts from pack JSON. HUMAN-GATED: recommend -> human Accept -> written scope -> pay. Agents must not purchase unsupervised.

• offer_customlab

  CustomLab.ai AI operations automation offer from pack JSON. No price, SKU or Payment Link; CTA is a free 30-minute fit call.