Features

Obrarum AI

Estimates

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Construction estimate calculator with a margin only you see

Build the estimate in chapters and items. You see how much you make on each one, and your client gets the final price.

Calculate your estimate free

No credit card • Free forever • Your margin stays private

Obrarum House Remodel

Install vanity, sink and faucet

Material
$720.00
Workforce
$240.00
Internal price
$960.00
Margin
25%
Client price
$1,200.00
Contingency 5%
$86.25
Sales tax 8%
$144.90

Total$1,956.15

How does Obrarum calculate a construction estimate?

  1. Build chapters and items

    Group the job into chapters with their items, so every part of the estimate has its place.

  2. Break down the costs

    Record what each item costs by type of cost, so you see where every price comes from.

  3. Set your margin

    Pick the margin on each item and instantly see the price your client will get, so you know what you make.

  4. Check the total

    The estimate adds chapters and adjustments into one total, and your client only sees the final price.

What's in a construction estimate calculator?

Which plans include it?

The estimate calculator is on every plan, Free included.

Frequently asked questions

Is there a free construction estimate calculator?

Yes, there are free construction estimate calculators. Obrarum has a Free plan that never expires and needs no card, with the calculator included.

Can I see how much I make on each item of a construction estimate?

Yes: a good calculator shows each item's internal cost, margin and client price. In Obrarum you see all three and can change the margin any time.

Can I hide my margin from the client in a construction estimate?

Yes: your client should only see the final prices. In Obrarum, the link you share and the PDF show only the client price; the internal cost and the margin stay with you.

Can I add contingency, taxes and discounts to a construction estimate?

Yes: they apply as adjustments to the whole estimate, not item by item. In Obrarum each adjustment is a percentage or a fixed amount, and it can subtract, like a discount.

Can I use my own prices in a construction estimate calculator?

Yes, your prices are yours. In Obrarum you save items with your costs in your library and pick them when you build each estimate, or you type the costs by hand.

Client approval

Share a link and your client approves the quote with a signature, from any browser and with no account. You get a certificate of the approval.

Learn more: Client approval

PDF and Excel

Your client gets the quote without your margin, and you take the full breakdown into Excel.

Learn more: PDF and Excel

An estimate where you see what you make

Build chapters and items, set your margin and share only the final price. You decide what you make.

Start free

No credit card • Free forever • Nothing to install