{"conditions":[],"costTypeSubtotals":{"Labor":79524,"Materials":36372},"currency":"USD","date":"2026-10-15","directCostCents":115896,"explicitStates":{"completenessState":"PROPOSED: frozen draft has 4 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":"basement-slab-platform/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: a 4 in unreinforced slab, a sound drain at the expected depth, no water in the trench.","Permit and inspection fees are excluded; a new drain usually needs a plumbing permit."],"markupIllustrations":[{"grossMargin":0.23076923076923075,"markup":0.3,"sellingPriceCents":150665},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":173844},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":208613}],"modifierInputsVersion":"e1eceb11","rateInputsVersion":"e1eceb11","rateObservationWindow":{"end":"2026-10-15","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":"Raised Sleeper Floor Over a Slab","version":"e1eceb11"},"componentExtendedCosts":{"laborCents":22500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":22500,"materialCents":0,"otherCents":0},"costType":"Labor","id":"drain-platform-step-labor","name":"Platform Step at the Door (per step)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-15","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Raised Sleeper Floor Over a Slab from drain platform true, threshold count 1 = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":22500,"trade":"Carpentry","unit":"ea","unitPriceCents":22500},{"assembly":{"name":"Raised Sleeper Floor Over a Slab","version":"e1eceb11"},"componentExtendedCosts":{"laborCents":0,"materialCents":4500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":4500,"otherCents":0},"costType":"Materials","id":"drain-platform-step-materials","name":"Platform Step Materials (per step)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-15","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Raised Sleeper Floor Over a Slab from drain platform true, threshold count 1 = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":4500,"trade":"Carpentry","unit":"ea","unitPriceCents":4500},{"assembly":{"name":"Raised Sleeper Floor Over a Slab","version":"e1eceb11"},"componentExtendedCosts":{"laborCents":57024,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":1188,"materialCents":0,"otherCents":0},"costType":"Labor","id":"sleeper-floor-framing-labor","name":"Sleeper Floor Over Slab, Framing Labor (per sf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":48,"quantityContract":{"deductions":0,"derivation":"Raised Sleeper Floor Over a Slab from floor sf 48 = 48 sf.","net":48,"purchased":48,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":57024,"trade":"Carpentry","unit":"sf","unitPriceCents":1188},{"assembly":{"name":"Raised Sleeper Floor Over a Slab","version":"e1eceb11"},"componentExtendedCosts":{"laborCents":0,"materialCents":31872,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":664,"otherCents":0},"costType":"Materials","id":"sleeper-floor-materials","name":"Sleeper Floor Over Slab, Materials (per sf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":48,"quantityContract":{"deductions":0,"derivation":"Raised Sleeper Floor Over a Slab from floor sf 48 = 48 sf.","net":48,"purchased":48,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":31872,"trade":"Carpentry","unit":"sf","unitPriceCents":664}],"scenario":{"allowanceTreatment":"PROPOSED: the ejector basin and pump, the up-flush toilet package and the cutting equipment are allowances; the selected product and the local rental rate set the final cost.","assumptions":["The platform stays low enough to leave 6 ft 8 in of headroom in the bathroom (IRC).","No riser is over 7 3/4 in."],"baselineConditions":"PROPOSED: the drain is too shallow to trench to; a 7 ft 6 in basement ceiling.","dimensions":[{"label":"Platform","unit":"sf","value":48}],"exclusions":["The plumbing above the slab.","Shower waterproofing and the floor finish."],"finishLevel":"A 6 by 8 ft framed platform high enough for gravity drains above the slab, with a two-riser step","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":["Poly vapor retarder over the slab","Treated sleepers fastened to the slab with rigid foam between them","3/4 in tongue-and-groove subfloor glued and screwed","Exterior door thresholds reset at the new floor height"],"kind":"Raised Bathroom Platform Over the Drains","scope":["Vapor barrier on the slab","Treated plates and 2x6 to 2x8 joists at drain height","3/4 in plywood subfloor, glued and screwed","A two-riser step at the door"]},"schemaVersion":"1.0","tradeSubtotals":{"Carpentry":115896},"version":"v1"}