{"conditions":[],"costTypeSubtotals":{"Labor":20200,"Materials":11000},"currency":"USD","date":"2026-10-15","directCostCents":31200,"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":"porch-jack-and-shim/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":40560},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":46800},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":56160}],"modifierInputsVersion":"c965e483","rateInputsVersion":"c965e483","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":"Porch Column Replacement","version":"c965e483"},"componentExtendedCosts":{"laborCents":700,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":175,"materialCents":0,"otherCents":0},"costType":"Labor","id":"exterior-caulking-sealing-labor","name":"Exterior Caulking and Sealing Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":4,"quantityContract":{"deductions":0,"derivation":"Porch Column Replacement from column count 1 = 4 lf.","net":4,"purchased":4,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":700,"trade":"Exterior","unit":"lf","unitPriceCents":175},{"assembly":{"name":"Porch Column Replacement","version":"c965e483"},"componentExtendedCosts":{"laborCents":0,"materialCents":8500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":8500,"otherCents":0},"costType":"Materials","id":"generic-install-consumables","name":"Generic Install Consumables","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Porch Column Replacement = 1 ls.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":8500,"trade":"General","unit":"ls","unitPriceCents":8500},{"assembly":{"name":"Porch Column Replacement","version":"c965e483"},"componentExtendedCosts":{"laborCents":19500,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":19500,"materialCents":0,"otherCents":0},"costType":"Labor","id":"porch-post-relevel-labor","name":"Porch Post Jack and Shim to Level (per post)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-15","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Porch Column Replacement from column count 1, mode relevel = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":19500,"trade":"Carpentry","unit":"ea","unitPriceCents":19500},{"assembly":{"name":"Porch Column Replacement","version":"c965e483"},"componentExtendedCosts":{"laborCents":0,"materialCents":2500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":2500,"otherCents":0},"costType":"Materials","id":"structural-shim-materials","name":"Structural Shims and Bearing Plate (per post)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-15","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Porch Column Replacement from column count 1, mode relevel = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":2500,"trade":"Carpentry","unit":"ea","unitPriceCents":2500}],"scenario":{"allowanceTreatment":"PROPOSED: replacement porch boards are an allowance at the treated-lumber baseline price; matching an older board profile sets the final cost.","assumptions":["The existing footing is sound and has stopped moving.","The post and beam are free of rot.","The jack sits on solid cribbing."],"baselineConditions":"PROPOSED: a 6 by 16 ft wood front porch with an accessible crawl space beneath it; one corner post settled about 1.5 in on a sound concrete footing; the post and beam are sound.","dimensions":[{"label":"Posts leveled","unit":"count","value":1},{"label":"Settlement","unit":"in","value":1.5}],"exclusions":["A new footing or post; if the footing itself is sinking, see the new-footing build.","Rot repair in the post or beam.","Lead-safe work practices: jacking and shimming disturb no painted surface. On a pre-1978 house they apply if more than 20 sq ft of exterior paint is scraped, sanded or cut."],"finishLevel":"One settled corner raised back to level on its existing footing; no new lumber","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":["Removal and disposal of existing porch columns","Installation of new columns per specified type (wood, fiberglass, or PVC)","Temporary shoring for load-bearing columns during replacement","Fastening and securing columns to existing porch structure","Caulking and sealing at column base and capital connections","Finish painting or priming of wood columns (one coat primer)","Hardware and mounting brackets as required for column attachment","Site cleanup and removal of old column materials"],"kind":"Porch Corner Jack and Shim","scope":["Set temporary cribbing beside the post and jack the beam back to level","Shim the existing 6x6 post with structural shims or a solid bearing plate","Check level, re-secure the post to the beam and footing, and remove the jack","Caulk the post base"]},"schemaVersion":"1.0","tradeSubtotals":{"Carpentry":22000,"Exterior":700,"General":8500},"version":"v1"}