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Free AI Construction Estimate Generator

Describe a residential job the way you would say it out loud. Clamp turns it into an itemized direct-cost draft: assemblies, quantities, and baseline rates you can inspect line by line.

Turn a job description into a review-ready, priced construction estimate draft. We will email you a copy too.

What are you pricing?

Want to see a finished one first? → 5×8 bathroom remodel, fully itemized

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How this draft is made

Clamp matches your description to construction assemblies and prices them from Clamp's current U.S. baseline rate library using an automated system. The result is a direct-cost draft for you to review and edit, not a bid, not a quote, and not a guarantee of what any contractor will charge. Rates use Clamp's national U.S. baseline and are not adjusted for your local market.

Baseline rates shown. In the app, your saved rates take over.
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Your estimate draft

What we heard

Assumptions to review

    Things to consider

      Projects

        This is not a price

        It is an estimate of job cost: labor and materials only. A sustainable contractor price has to be higher than job cost. Overhead and profit go on top, and how much depends entirely on what that contractor's business requires to operate.

        How contractor markup works →

        Illustrative price range with example contractor markups
        Estimated job cost, before any markup

        National-average planning estimate. Uses typical U.S. direct labor and material costs. Local prices, permits, taxes, access, product selections, and contractor overhead and profit can differ substantially.

        Illustrative contractor profiles, not recommended markups. Higher markup means more business behind the job. It does not by itself mean better work, and a lower markup does not by itself mean a better deal. Your correct markup depends on your actual overhead, sales volume, owner compensation, and profit goal.

        Selected profile
        job costs · no markup

        Possible additional work

        Not included in the total above. Priced in case hidden conditions are found. Shown at job cost, before any markup.

        Alternates

        Options priced instead of part of the base. Not added to the total above. Shown at job cost, before any markup.

        Permits, not included

        Permit fees vary by jurisdiction, so they are not in the total above. Typical national range, shown at job cost.

        Your full draft is on its way to your inbox.

        How it works

        You write one paragraph about the job. Clamp matches it to construction assemblies, derives quantities from the dimensions you give, and prices each line from Clamp's current national U.S. baseline rates. The draft that comes back is itemized by trade with labor and materials split out, the same structure a contractor would build by hand.

        Here is a real prompt, exactly as written:

        Remodel a 5 by 8 foot hall bathroom, keeping the same layout. Replace the existing 60 by 30 tub with a new tub in the same location, and install a tiled tub surround to the ceiling, about 65 square feet of wall tile. New vanity with countertop and faucet, new toilet, replace the exhaust fan, swap two light fixtures, and paint the walls and ceiling. Install about 28 square feet of porcelain floor tile in the open floor area.

        What the output looks like

        These rows come from the reviewed estimate that prompt produced, published in full on this site:

        Excerpt from the published 5x8 bathroom estimate
        ItemQtyUnitTotal
        Plumbing
        Shower/Tub Valve Set1ea$425.00
        Toilet Allowance1ea$350.00
        Carpentry
        Vanity Install Labor1ea$537.50
        Painting
        Interior Paint Apply Labor222sf$133.20
        Demo & Prep
        Interior Demolition Labor40sf$70.00
        Direct job cost, all 53 rows$11,799.17

        See the full itemized example →

        A draft is not a bid

        The numbers are direct job cost: labor and materials, with no contractor overhead or profit. A working contractor adds markup to cover both, and how much depends on their overhead, crew, and profit target. On this same $11,799.17 example, three illustrative markups spanning that range:

        Illustrative selling prices on the published example
        ProfileMarkupSelling price
        Low-Overhead30%$15,338.92
        Established50%$17,698.76
        Full-Service100%$23,598.34

        Profile names are illustrative labels, not measured pricing practices; the right markup comes from a contractor's own overhead and profit numbers. Local rates also vary from the national baseline used here.

        To see how the percentage works: markup vs margin, on this exact job.

        Where the prices come from

        Rates come from Clamp's current baseline rate library, documented in How Clamp estimates are built. The published example includes its underlying data files, so you can inspect the assumptions, quantities, rates, and arithmetic.

        Clamp is also a full job workflow app for residential contractors on iOS and Android: leads, design agreements, estimates, proposals, change orders, and invoices. Learn about the app.