{"conditions":[],"costTypeSubtotals":{"Dump fees":45000,"Labor":294000,"Materials":254100},"currency":"USD","date":"2026-10-11","directCostCents":593100,"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":"retaining-wall-timber-to-block/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":771030},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":889650},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":1067580}],"modifierInputsVersion":"3d964be6","rateInputsVersion":"3d964be6","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":"Retaining Wall System","version":"3d964be6"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":45000},"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":2,"quantityContract":{"deductions":0,"derivation":"Retaining Wall System from remove existing lf 35 = 2 ea.","net":2,"purchased":2,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":45000,"trade":"Demo & Prep","unit":"ea","unitPriceCents":22500},{"assembly":{"name":"Retaining Wall System","version":"3d964be6"},"componentExtendedCosts":{"laborCents":231000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":2200,"materialCents":0,"otherCents":0},"costType":"Labor","id":"retaining-wall-install-labor","name":"Retaining Wall Install Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":105,"quantityContract":{"deductions":0,"derivation":"Retaining Wall System from wall sf 105 = 105 sf.","net":105,"purchased":105,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":231000,"trade":"Masonry","unit":"sf","unitPriceCents":2200},{"assembly":{"name":"Retaining Wall System","version":"3d964be6"},"componentExtendedCosts":{"laborCents":0,"materialCents":254100,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":2200,"otherCents":0},"costType":"Materials","id":"retaining-wall-materials","name":"Retaining Wall Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":115.5,"quantityContract":{"deductions":0,"derivation":"Retaining Wall System from wall sf 105 = 115.5 sf.","net":115.5,"purchased":115.5,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":254100,"trade":"Masonry","unit":"sf","unitPriceCents":2200},{"assembly":{"name":"Retaining Wall System","version":"3d964be6"},"componentExtendedCosts":{"laborCents":63000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":1800,"materialCents":0,"otherCents":0},"costType":"Labor","id":"retaining-wall-tear-out-labor","name":"Retaining Wall Tear-Out Labor (per lf)","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-07","reference":"Private source","visibility":"private"}],"quantity":35,"quantityContract":{"deductions":0,"derivation":"Retaining Wall System from remove existing lf 35 = 35 lf.","net":35,"purchased":35,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":63000,"trade":"Landscaping","unit":"lf","unitPriceCents":1800}],"scenario":{"allowanceTreatment":"PROPOSED: no allowance lines; block, base and drainage are priced as materials.","assumptions":["The two shrubs near the wall are protected and kept where possible; replacing plantings is excluded.","Soil behind the wall is typical fill that excavates and compacts normally.","Block in a standard color and face; no premium face or caps."],"baselineConditions":"PROPOSED: a rotten timber retaining wall about 35 feet long and 3 feet tall beside a driveway; the driveway stays.","dimensions":[{"label":"Wall length","unit":"lf","value":35},{"label":"Wall height","unit":"ft","value":3},{"label":"Wall face","unit":"sq ft","value":105}],"exclusions":["Driveway repair; the driveway stays and is protected.","Engineering; the wall is under 4 feet.","Geogrid; not required at this height.","Fence or railing on top.","Irrigation or lighting work.","Permit fees."],"finishLevel":"35 feet of segmental concrete block at about 3 feet, with base and drainage","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":["Excavation and base compaction for retaining wall footing","Poured concrete or compacted gravel footing per height requirements","Segmental block, poured concrete, timber, or natural stone wall material installation","Geogrid reinforcement installation for walls over 4 feet","Drain stone and a perforated drain behind the wall, then backfill and compaction","Engineering review allowance for walls over 4 feet","Building permit and inspection coordination when required","Final grade transition at wall top and base"],"kind":"Retaining Wall Replacement, Timber to Block","scope":["Tear out the old landscape-timber wall","Haul-off, two loads","Excavate and compact the base, then lay segmental concrete retaining block to about 3 feet with cap","Drain stone and a perforated drain behind the wall, backfilled and compacted"]},"schemaVersion":"1.0","tradeSubtotals":{"Demo & Prep":45000,"Landscaping":63000,"Masonry":485100},"version":"v1"}