This calculator vs. STACK
Two different shapes: STACK is an account-based takeoff and estimating platform for running a contractor's whole preconstruction workflow, across trades and across many jobs. This page is a free, private worksheet for one question — what should this driveway, patio, or slab cost, before you offer it to the customer.
What each tool is for
STACK is a cloud-based construction takeoff and estimating platform used by contractors across trades — including concrete, but also framing, roofing, electrical, and general contracting — to turn digital plans into a measured takeoff, build estimates and proposals from it, and manage the broader preconstruction workflow, tied to one account used on an ongoing basis across every project. STACK's own site is not reachable from this session to confirm today's specific feature list, plan names, or pricing, so only its well-documented identity and category are stated here: nothing about it is invented, and no dollar figure for it appears on this page. Public descriptions of that takeoff and estimating software describe measuring plan sets and building estimates from them across a portfolio of jobs and trades; none describe working out what one concrete pour should cost from its own area, thickness, forms, and finish labor before you quote it — which is the one thing this calculator does.
This calculator does none of what STACK does. It does not read a plan set, manage a takeoff library, or track a bid across a sales pipeline. It takes one slab's area and thickness for cubic yards, a waste percentage rounded up to the ready-mix plant's billed order increment, form footage, reinforcement, finish labor by the surface you pick, access cost for a pump or wheelbarrow pour, a short-load fee if the order falls under your threshold, and demo and haul of any existing slab, and turns that into the recommended price, the walk-away number, the price per cubic yard, the price per square foot, and a check of whether a price you're already considering still clears your own margin — plus a printable customer proposal. It runs free in any browser, keeps no account, and uploads nothing you type.
| Question | Where to answer it |
|---|---|
| I need to run digitized takeoffs from plan sets and manage estimates across many projects and trades. | STACK, or a comparable takeoff platform — running that ongoing workflow is not something this calculator does. |
| What should I charge for this driveway, patio, or slab, given its area, thickness, forms, finish, and access? | This calculator — free, instant, private, no account. |
| Why does the cubic yardage I'm billed for differ from the raw calculated volume? | This calculator's waste percentage and quarter-yard order rounding, shown separately from the exact volume. |
| A customer's budget is below what I'd normally quote. Does it still clear my walk-away number? | This calculator's proposed-price check — it flags a price below break-even before you agree to it. |
| I already have jobs estimated and need to manage takeoffs, bids, and proposals across an ongoing pipeline. | STACK — built as an ongoing, account-based platform for exactly that job. |
| How does the yardage-and-forms math behind a concrete price actually work? | This calculator's own driveway yardage walkthrough. |
| Do I need to create an account or sign up to use the tool? | This calculator: no. STACK's tools are used through a paid account. |
Most concrete and general contractors get different value from each: STACK (or a comparable takeoff platform) for measuring plans and running estimates across an ongoing pipeline of projects and trades as an account, and a private calculator like this one for an instant, no-login answer to what a single pour should cost before it is offered. This page's own figures are a pricing model, not a signed proposal, an invoice, or a structural or mix-design check.
This tool needs no account and no sign-in: it is a static page, the arithmetic runs in your browser, and once it has loaded it keeps working with the connection off.
Common questions
Should I use this calculator or STACK?
They do different jobs, and a concrete or general contractor of any size will likely end up touching both. STACK is a cloud-based construction takeoff and estimating platform used by contractors across trades to digitize plans into a takeoff, generate estimates and proposals, and manage the broader preconstruction workflow, on an ongoing paid account. This calculator does one narrower thing: it takes a slab's area, thickness, and waste percentage to get ordered cubic yards, plus form footage, reinforcement, finish labor by surface, access for a pump or wheelbarrow, a short-load fee, and demo and haul of an existing slab, and turns that into the recommended price, the walk-away number, price per cubic yard, and price per square foot, before you have quoted anything. It runs free in any browser, keeps no account, and uploads nothing you type. A contractor already running digitized takeoffs and estimates across many projects and trades is better served by STACK or a comparable takeoff platform; someone who needs an instant, private answer to what one driveway, patio, or slab should cost before it is offered is in the right place here.
Is this page affiliated with STACK?
No. This site is not affiliated with, endorsed by, or sponsored by STACK Construction Technologies. STACK is a trademark of its owner, named here only to describe what this calculator is and is not.
Open the Concrete Bid Calculator to price your own pour.