TinyHomeDIYEstimator

Steel roof and siding, trailer, and NOAH certification included. Every rate below is editable — nothing here is a black box.
Estimated build cost
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Materials
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Labor
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Contingency
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Per finished sq ft
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Finished area
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Where the money goes Materials Labor

Line-item estimate

ItemQuantityMaterialsLaborCost
Rate assumptions — edit any number

Defaults are 2026 US-average figures: corrugated steel roofing runs about $1–$5/sq ft in material and $5–$12/sq ft installed; steel siding about $7–$12/sq ft installed; tiny house trailers $4,500–$14,000 by length; NOAH certification $1,600–$3,000 per unit, or $2,750 as-built. Region and finish-level multipliers are applied on top of these rates, materials at partial weight and labor in full.