{"conditions":[],"costTypeSubtotals":{"Allowances":41700,"Labor":71500,"Materials":24975,"Subcontract":85000},"currency":"USD","date":"2026-10-12","directCostCents":223175,"explicitStates":{"completenessState":"PROPOSED: frozen draft has 12 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":"radon-mitigation-sub-slab/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":290128},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":334763},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":401715}],"modifierInputsVersion":"46f4dff6","rateInputsVersion":"46f4dff6","rateObservationWindow":{"end":"2026-10-07","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":"Radon Mitigation System (sub-slab depressurization) + Dedicated Circuit Install + Electrical Subpanel Install","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":850,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":850,"otherCents":0},"costType":"Materials","id":"electrical-box-device-materials","name":"Electrical Box and Device Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from dedicated circuit false; Dedicated Circuit Install; Electrical Subpanel Install = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":850,"trade":"Electrical","unit":"ea","unitPriceCents":850},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":5500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":5500,"materialCents":0,"otherCents":0},"costType":"Labor","id":"electrical-rough-in-per-device","name":"Electrical Rough-In Per Device","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from dedicated circuit false = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":5500,"trade":"Electrical","unit":"ea","unitPriceCents":5500},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":6500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":6500,"materialCents":0,"otherCents":0},"costType":"Labor","id":"outlet-switch-install-labor","name":"Outlet/Switch Install","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from dedicated circuit false = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":6500,"trade":"Electrical","unit":"ea","unitPriceCents":6500},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":20625,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":625,"otherCents":0},"costType":"Materials","id":"plumbing-dwv-materials","name":"DWV Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":33,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from pipe lf 30 = 33 lf.","net":33,"purchased":33,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":20625,"trade":"Plumbing","unit":"lf","unitPriceCents":625},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":47500},"componentRates":{"laborCents":0,"materialCents":0,"otherCents":47500},"costType":"Subcontract","id":"radon-exhaust-penetration-labor","name":"Radon Exhaust Penetration and Flashing (per system)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":47500,"trade":"Roofing","unit":"ea","unitPriceCents":47500},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":30000,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":30000,"otherCents":0},"costType":"Allowances","id":"radon-fan-allowance","name":"Radon Fan Allowance (per fan)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":30000,"trade":"Specialty","unit":"ea","unitPriceCents":30000},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":3500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":3500,"otherCents":0},"costType":"Materials","id":"radon-manometer-label-materials","name":"Radon U-Tube Manometer and System Labels (per point)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from suction point count 1 = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":3500,"trade":"Specialty","unit":"ea","unitPriceCents":3500},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":11000,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":11000,"otherCents":0},"costType":"Allowances","id":"radon-post-mitigation-test-allowance","name":"Radon Post-Mitigation Test Allowance (per test)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from post test true = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":11000,"trade":"Specialty","unit":"ea","unitPriceCents":11000},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":11500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":575,"materialCents":0,"otherCents":0},"costType":"Labor","id":"radon-slab-crack-sealing-labor","name":"Radon Slab Crack and Sump Lid Sealing (per lf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":20,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from seal lf 20 = 20 lf.","net":20,"purchased":20,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":11500,"trade":"Specialty","unit":"lf","unitPriceCents":575},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":37500},"componentRates":{"laborCents":0,"materialCents":0,"otherCents":37500},"costType":"Subcontract","id":"radon-suction-pit-labor","name":"Radon Suction Point Core and Pit (per point)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from suction point count 1 = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":37500,"trade":"Specialty","unit":"ea","unitPriceCents":37500},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":48000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":1600,"materialCents":0,"otherCents":0},"costType":"Labor","id":"radon-vent-pipe-install-labor","name":"Radon Vent Pipe Install Labor (per lf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":30,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from pipe lf 30 = 30 lf.","net":30,"purchased":30,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":48000,"trade":"Plumbing","unit":"lf","unitPriceCents":1600},{"assembly":{"name":"Radon Mitigation System (sub-slab depressurization)","version":"46f4dff6"},"componentExtendedCosts":{"laborCents":0,"materialCents":700,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":700,"otherCents":0},"costType":"Allowances","id":"switch-unit-allowance","name":"Switch Unit Allowance","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Radon Mitigation System (sub-slab depressurization) from dedicated circuit false = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":700,"trade":"Electrical","unit":"ea","unitPriceCents":700}],"scenario":{"allowanceTreatment":"PROPOSED: the radon fan and the post-mitigation test are allowances at their baseline amounts.","assumptions":["One suction point draws down the whole slab.","Sub-slab material is permeable enough for a single point.","An exterior route to the roof is available.","Power is available near the fan location."],"baselineConditions":"PROPOSED: finished basement of about 1,100 sq ft on a poured slab; a utility room available for the suction point; pipe routed outside the living space to above the roof.","dimensions":[{"label":"Basement footprint","unit":"sq ft","value":1100},{"label":"Suction points","unit":"count","value":1},{"label":"Vent pipe","unit":"lf","value":30}],"exclusions":["A second suction point if the first does not reach the whole slab.","Finished-wall or ceiling repair beyond patching small penetrations.","Ongoing retesting after the first post-mitigation test.","Permit fees."],"finishLevel":"Active sub-slab depressurization, one suction point, exterior pipe route","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":["Core drill and suction pit","Schedule 40 PVC vent pipe to above the roof line","Inline radon fan","Rim or roof penetration with flashing","U-tube manometer and labels","Slab crack and sump lid sealing","Fan disconnect on an existing circuit, or a new circuit when chosen","Small patching at the penetrations","Post-mitigation test"],"kind":"Radon Mitigation System","scope":["Core the slab and dig the suction pit in the utility room","Run 30 feet of PVC vent pipe up the exterior to terminate above the roof, with the roof penetration flashed","Install the radon fan outside the living space, with an outlet and switch for it","Seal about 20 feet of slab cracks and the sump lid","Install a U-tube manometer and system labels","Post-mitigation radon test"]},"schemaVersion":"1.0","tradeSubtotals":{"Electrical":13550,"Plumbing":68625,"Roofing":47500,"Specialty":93500},"version":"v1"}