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Replacement","version":"3d964be6"},"componentExtendedCosts":{"laborCents":48100,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":24050,"materialCents":0,"otherCents":0},"costType":"Labor","id":"window-install","name":"Window Install","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":2,"quantityContract":{"deductions":0,"derivation":"Window Replacement from window count 2; Window Replacement from window count 2 = 2 ea.","net":2,"purchased":2,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":48100,"trade":"Carpentry","unit":"ea","unitPriceCents":24050},{"assembly":{"name":"Window Replacement","version":"3d964be6"},"componentExtendedCosts":{"laborCents":18000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":9000,"materialCents":0,"otherCents":0},"costType":"Labor","id":"window-interior-trim-install-labor","name":"Window Interior Trim Install Labor","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":2,"quantityContract":{"deductions":0,"derivation":"Window Replacement from window count 2; Window Replacement from window count 2 = 2 each.","net":2,"purchased":2,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":18000,"trade":"Carpentry","unit":"each","unitPriceCents":9000},{"assembly":{"name":"Window Replacement","version":"3d964be6"},"componentExtendedCosts":{"laborCents":0,"materialCents":11050,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":325,"otherCents":0},"costType":"Materials","id":"window-interior-trim-materials","name":"Window Interior Trim Materials","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":34,"quantityContract":{"deductions":0,"derivation":"Window Replacement from window count 2; Window Replacement from window count 2 = 34 lf.","net":34,"purchased":34,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":11050,"trade":"Carpentry","unit":"lf","unitPriceCents":325},{"assembly":{"name":"Window Replacement","version":"3d964be6"},"componentExtendedCosts":{"laborCents":0,"materialCents":57500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":28750,"otherCents":0},"costType":"Allowances","id":"window-unit-allowance","name":"Window Unit Allowance","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":2,"quantityContract":{"deductions":0,"derivation":"Window Replacement from window count 2; Window Replacement from window count 2; Window Replacement from window count 2; Window Replacement from window count 2 = 2 each.","net":2,"purchased":2,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":57500,"trade":"Carpentry","unit":"each","unitPriceCents":28750}],"scenario":{"allowanceTreatment":"PROPOSED: allowance lines (the door, windows, fixtures, flooring, paint) are included as material components at their baseline amount; the selection sets the final cost.","assumptions":["The existing patio slab cannot carry the walls; a new frost footing is priced in its place.","The addition ties into the existing wall with a shed roof; the existing roof framing is sound.","The existing HVAC system has capacity for the duct extension.","The electrical panel has space for two new circuits.","Soils are typical; the engineering review allowance covers the review, not a redesign."],"baselineConditions":"PROPOSED: occupied home with an existing concrete patio where the addition goes; the patio is assumed unable to carry walls, so a new frost footing and crawlspace-height foundation are priced.","dimensions":[{"label":"Addition area","unit":"sq ft","value":80},{"label":"Windows","unit":"count","value":2},{"label":"Exterior doors","unit":"count","value":1}],"exclusions":["Structural work beyond the one engineering review allowance, such as a foundation redesign for poor soils.","Plumbing; the room has none.","Opening or widening the wall between the house and the mudroom; the existing back door is the connection.","Permit fees themselves; the drawing set is priced, the fees are not.","Landscaping beyond about five feet of the foundation, restored with sod."],"finishLevel":"Heated room: LVP floor, drywall, a built-in bench with hooks","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":["Foundation excavation and concrete footing installation","Engineered floor framing and subfloor decking","Wall framing with structural tie-in to existing structure","Roof framing, sheathing, and asphalt shingle installation","Fiberglass batt insulation in walls, ceiling, and subfloor","Vapor barrier and house wrap installation","Electrical rough-in with panel connection and branch circuits","Heating and cooling for the new room: a ductless mini-split, a duct extension from the existing system, or a new ducted heat pump","A bathroom inside the addition when selected: fixtures, rough plumbing, tile, vanity and fan, or a powder room (toilet and vanity); on a slab the drains are trenched and laid to the tie-in before the pour, and an accessible curbless shower is recessed into the slab","A vaulted ceiling when ceiling-type is set: a structural ridge beam with posts (or scissor trusses), closed-cell foam in the rafter bays in place of the attic insulation, and the sloped ceiling and gable wall hung and painted at the larger area"],"kind":"8x10 Mudroom Addition","scope":["Remove the patio section in the footprint and excavate for a new foundation","Concrete footing and foundation walls, with an engineering review allowance","Framed floor, walls and a shed roof tied into the existing wall, sheathed and shingled with step flashing, drip edge, a ridge vent, gutters and downspouts","Vinyl siding, house wrap, two vinyl windows and one exterior entry door","Insulated floor, walls and ceiling with air sealing and ventilation baffles","Two new electrical circuits: outlets, two recessed lights, a light fixture, a switch and a smoke and CO detector","Heat and cooling by extending the existing ductwork, with a load calculation and commissioning","Drywall, paint, trim, LVP flooring, and a 6 foot built-in bench with open shelving and a hook strip","Permit drawing set, jobsite supervision, daily cleanup, final cleanup, dumpster and site restoration with sod"]},"schemaVersion":"1.0","tradeSubtotals":{"Carpentry":1152411,"Demo & Prep":91420,"Drywall":112613,"Electrical":256852,"Exterior":164203,"Flooring":60100,"HVAC":242550,"Insulation":151666,"Landscaping":37034,"Masonry":310940,"Painting":134023,"Permits & PM":601500,"Roofing":119685,"Sitework":122200,"Vanity & Fixtures":1650},"version":"v1"}