{"conditions":[],"costTypeSubtotals":{"Allowances":5808,"Dump fees":22500,"Labor":94356,"Materials":21090,"Subcontract":156672},"currency":"USD","date":"2026-10-12","directCostCents":300426,"explicitStates":{"completenessState":"PROPOSED: frozen draft has 11 stored lines and no separately assessed tax or contingency.","contingencyTreatment":"PROPOSED: excluded, not assessed.","markupBase":"Direct job cost.","taxTreatment":"PROPOSED: excluded, not assessed."},"exporterVersion":"3","id":"four-season-room-ceiling-insulation/v1","labor":{"coverage":"PROPOSED: labor rows cover only stored Labor cost-type lines; Subcontract rows are the subcontractor's all-in price to the contractor.","rateBasis":"Loaded labor rates for a mid-market residential contractor (wages plus employer burden), median U.S. market; supply-and-install coverage as stated per row."},"license":{"policy":"Clamp permits attributed citation, quotation and reproduction of this published example, including commercial editorial use, contractor project estimating, research, search indexing, and retrieval or caching used to produce attributed answers. This permission does not authorize republication of substantially all Clamp-authored snapshot content as a competing commercial cost-reference collection, whether assembled from one or multiple snapshots. Contact Clamp for that permission. These terms apply only to rights Clamp owns or may license. They do not restrict independent facts, independently developed data, fair use or other statutory rights. Third-party material remains subject to its applicable terms. Attribution should identify Clamp, the scenario/version and its canonical URL. Clamp Snapshot Rights Policy 1.0, working draft subject to counsel review.","redistributionClearance":"All published inputs are Clamp’s internal researched baseline (multi-source AI research synthesized by Clamp); no third-party licensed datasets are incorporated.","reference":"Clamp Snapshot Rights Policy 1.0","version":"Clamp Snapshot Rights Policy 1.0"},"licenseReference":"Clamp Snapshot Rights Policy 1.0","licenseVersion":"Clamp Snapshot Rights Policy 1.0","limitations":["Modeled examples are not bids, completed-job records, or national averages.","Rates are researched baselines with stated windows; local quotes vary.","Typical conditions are assumed.","Permit and inspection fees are excluded; requirements vary by jurisdiction."],"markupIllustrations":[{"grossMargin":0.23076923076923075,"markup":0.3,"sellingPriceCents":390554},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":450639},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":540767}],"modifierInputsVersion":"46f4dff6","rateInputsVersion":"46f4dff6","rateObservationWindow":{"end":"2026-10-06","start":"2026-10-06"},"review":{"approvalTimestamp":"","reviewDate":"","reviewer":"Emmanuel Forge","scope":"PROPOSED: scope selection, arithmetic, and provenance mapping; not independent market-rate verification"},"rows":[{"assembly":{"name":"Drywall Hang and Finish Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":24000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":125,"materialCents":0,"otherCents":0},"costType":"Labor","id":"demo-drywall","name":"Drywall Removal","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Drywall Hang and Finish Room from remove ceiling sf 192, remove wall sf 0 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":24000,"trade":"Drywall","unit":"sf","unitPriceCents":125},{"assembly":{"name":"Drywall Hang and Finish Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":22500},"componentRates":{"laborCents":0,"materialCents":0,"otherCents":22500},"costType":"Dump fees","id":"demo-haul-off-load","name":"Haul-Off Per Load","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Drywall Hang and Finish Room from haul scrap true, wall ceiling sf 192, remove ceiling sf 192, remove wall sf 0 = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":22500,"trade":"Demo & Prep","unit":"ea","unitPriceCents":22500},{"assembly":{"name":"Drywall Hang and Finish Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":28800,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":150,"materialCents":0,"otherCents":0},"costType":"Labor","id":"drywall-finish-labor","name":"Drywall Finish Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Drywall Hang and Finish Room from wall ceiling sf 192 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":28800,"trade":"Drywall","unit":"sf","unitPriceCents":150},{"assembly":{"name":"Drywall Hang and Finish Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":14400,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":75,"materialCents":0,"otherCents":0},"costType":"Labor","id":"drywall-hang-labor","name":"Drywall Hang Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Drywall Hang and Finish Room from wall ceiling sf 192 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":14400,"trade":"Drywall","unit":"sf","unitPriceCents":75},{"assembly":{"name":"Drywall Hang and Finish Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":15840,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":75,"otherCents":0},"costType":"Materials","id":"drywall-sheets-materials","name":"Drywall Sheets Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":211.2,"quantityContract":{"deductions":0,"derivation":"Drywall Hang and Finish Room from wall ceiling sf 192 = 211.2 sf.","net":211.2,"purchased":211.2,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":15840,"trade":"Drywall","unit":"sf","unitPriceCents":75},{"assembly":{"name":"Interior Paint Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":18432,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":96,"materialCents":0,"otherCents":0},"costType":"Labor","id":"interior-ceiling-paint-apply-labor","name":"Interior Ceiling Paint Apply Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Interior Paint Room from includes ceiling true, ceiling sf 192, wall sf 0 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":18432,"trade":"Painting","unit":"sf","unitPriceCents":96},{"assembly":{"name":"Interior Paint Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":5808,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":4800,"otherCents":0},"costType":"Allowances","id":"paint-premium-allowance","name":"Premium Paint Allowance","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1.21,"quantityContract":{"deductions":0,"derivation":"Interior Paint Room from coating type latex, wall sf 0, includes ceiling true, ceiling sf 192 = 1.21 gallon.","net":1.21,"purchased":1.21,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":5808,"trade":"Painting","unit":"gallon","unitPriceCents":4800},{"assembly":{"name":"Interior Paint Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":4224,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":22,"materialCents":0,"otherCents":0},"costType":"Labor","id":"paint-prep-labor","name":"Paint Prep Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Interior Paint Room from wall sf 0, includes ceiling true, ceiling sf 192 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":4224,"trade":"Painting","unit":"sf","unitPriceCents":22},{"assembly":{"name":"Interior Paint Room","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":5250,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":15000,"otherCents":0},"costType":"Materials","id":"paint-sundries-materials","name":"Paint Sundries Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":0.35,"quantityContract":{"deductions":0,"derivation":"Interior Paint Room from wall sf 0 = 0.35 ls.","net":0.35,"purchased":0.35,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":5250,"trade":"Painting","unit":"ls","unitPriceCents":15000},{"assembly":{"name":"Wall Insulation, Open Studs","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":4500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":4500,"materialCents":0,"otherCents":0},"costType":"Labor","id":"site-protection-minimal-labor","name":"Site Protection, Minimal (per job)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Wall Insulation, Open Studs = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":4500,"trade":"Demo & Prep","unit":"ea","unitPriceCents":4500},{"assembly":{"name":"Wall Insulation, Open Studs","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":156672},"componentRates":{"laborCents":0,"materialCents":0,"otherCents":816},"costType":"Subcontract","id":"spray-foam-insulation-installed","name":"Spray Foam Insulation, Installed (per sf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":192,"quantityContract":{"deductions":0,"derivation":"Wall Insulation, Open Studs from material closed cell spray, surface ceiling rafter, wall sf 192; Wall Insulation, Open Studs from material closed cell spray, surface ceiling rafter, wall sf 192 = 192 sf.","net":192,"purchased":192,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":156672,"trade":"Insulation","unit":"sf","unitPriceCents":816}],"scenario":{"allowanceTreatment":"PROPOSED: paint is an allowance at the baseline price.","assumptions":["The rafters are 2x8 and sound.","Closed-cell foam in the rafter bays suits the low-slope roof without adding venting.","No roof leak or rot is found."],"baselineConditions":"PROPOSED: 12x16 four-season room with a drywall ceiling following a low-slope framed roof and little or no insulation; roof, walls and windows stay.","dimensions":[{"label":"Ceiling","unit":"sq ft","value":192},{"label":"Room length","unit":"ft","value":16},{"label":"Room width","unit":"ft","value":12}],"exclusions":["Roof leaks or rot found once the ceiling is open; those are separate.","Wall and window work.","Roof replacement or ventilation changes."],"finishLevel":"Ceiling opened, closed-cell spray foam in the rafters, new drywall","geographicBasis":"Clamp researched baseline rates, reconciled across three AI systems against a stated mid-market scenario; no specific locality and no measured market median","geography":"No specific locality is selected, and no statistically measured market median is claimed","inclusions":["Insulation in open cavities","Vapor retarder when selected","Drywall sheet delivery and staging","Drywall hang on walls and ceiling (if included)","Joint tape and compound application per specified finish level","Corner bead installation at all outside corners","Sanding between finish coats","Optional skim coat application for level 5 finish","Debris haul-off and disposal of drywall scrap","Touch-up after fastener inspection"],"kind":"Four-Season Room Ceiling Insulation","scope":["Protect the room and remove the 192 sq ft drywall ceiling","Spray closed-cell foam into the 2x8 rafter bays, insulating and air sealing in one step","Hang and finish new drywall to a smooth level 4","Paint the new ceiling","Haul off the debris"]},"schemaVersion":"1.0","tradeSubtotals":{"Demo & Prep":27000,"Drywall":83040,"Insulation":156672,"Painting":33714},"version":"v1"}