{"uid":"cap_V0_1HB1Oh3VePOrwjeySq","slug":"construction-calculators-bulk-material-estimator-a426dab6","name":"Construction Calculators – Bulk Material Estimator","description":"Cubic yards and approximate tons of gravel, sand, topsoil, mulch or compost to cover an area at a given depth.","url":"https://construction-calc.x402tookit.com/bulk-material?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["material","areaSqFt","depthIn"],"properties":{"depthIn":{"type":"number","description":"Depth in inches (mulch 2 to 3, gravel path 3 to 4)"},"areaSqFt":{"type":"number","description":"Area to cover in square feet"},"material":{"type":"string","description":"gravel, crushed-stone, sand, topsoil, compost or mulch"},"pricePerYd3":{"type":"number","description":"Price per cubic yard, for a total"},"compactionPct":{"type":"number","description":"Extra for settling or compaction, default 0 (10 to 20 for gravel base)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"material":{"type":["null","string"]},"orderYd3":{"type":["null","number"]},"cubicFeet":{"type":["null","number"]},"totalCost":{},"cubicYards":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"cubicMeters":{"type":["null","number"]},"approxShortTons":{"type":["null","number"]},"assumedLbPerYd3":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MAkPDjmzxY_V31pxb8bT0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates cubic yards, cubic feet, cubic meters, and approximate short tons of bulk landscaping or construction material (gravel, sand, topsoil, mulch, compost) needed to cover a given area at a specified depth.","exampleAgentPrompt":"How many cubic yards of gravel do I need to cover a 400 square foot driveway at 4 inches deep, with 15% extra for compaction, and what will it cost if gravel is $45 per cubic yard?","exampleUseCases":[{"title":"Driveway gravel order planning","prompt":"I'm putting in a new gravel driveway that's 800 square feet and I want 4 inches of crushed stone with 20% added for compaction — how many cubic yards and tons do I need to order?"},{"title":"Garden bed topsoil estimation","prompt":"I have a raised garden area of 250 square feet and want to add 6 inches of topsoil. How many cubic yards should I order, and what would it cost at $35 per cubic yard?"},{"title":"Mulch coverage for landscaping","prompt":"Can you figure out how much mulch I need for my flower beds? The total area is 600 square feet and I want a 3-inch layer of mulch — give me cubic yards and approximate weight."}],"resultDescription":"Returns cubic yards, cubic feet, cubic meters, recommended order quantity (with optional compaction padding), approximate short tons based on assumed material density (lbs per cubic yard), optional total cost if price per cubic yard is provided, a plain-language summary, and a disclaimer about density variability.","failureModes":["Missing required query parameters (material, areaSqFt, depthIn) returns an error","Invalid material type string not in the accepted enum returns an error or degraded result","Negative or zero values for area or depth may return validation errors","Very large or unrealistic values may produce warnings in the disclaimer field"],"whenToPreferThis":"Choose this endpoint when you need a fast, structured estimate of bulk landscaping or construction material quantities (gravel, sand, topsoil, mulch, compost, crushed stone) by area and depth. It handles unit conversions (cubic feet, cubic yards, cubic meters, short tons) and optional cost estimation in one call, making it ideal for home improvement planning, landscaping projects, or construction prep without requiring manual density lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:11:23.265Z","isFirstParty":false,"canonicalSlug":"construction-calculators-bulk-material-estimator-a426dab6"}