Best Estimating Software for General Contractors

A general contractor can lose an estimate long before the proposal reaches the customer: quantities are pulled from a paper set by hand, labor and material assumptions live in a spreadsheet no one else can audit, or a field quote has to be copied into an invoice after the customer accepts. Those are different workflow problems, which is why STACK and Joist should not be treated as interchangeable entries on a best-software list. STACK is the construction takeoff and estimating option in this stack; Joist is the lighter estimating, invoicing, and payment option for smaller contracting jobs. The useful choice is the one that removes the manual step actually slowing your bids without adding a second system that the team will work around.

Start with the estimating handoff, not the price

The $39 versus $200 monthly comparison is real, but it is not a complete decision rule. STACK is described as cloud-based software for measuring plans and pricing materials and labor before a bid. Its listed Procore integration matters when an estimate needs to live beside project budgets, schedules, document control, RFIs, and subcontractor collaboration. Joist is described as a lightweight app for estimating, invoicing, and payments, with a QuickBooks Online integration. That makes it a more direct fit when a simpler scope needs to move from quote to invoice and payment collection rather than through a detailed plan-measurement process.

For a contractor repeatedly bidding from drawings, the failure mode of a lightweight workflow is not that the proposal looks unprofessional; it is that plan quantities and pricing may still be assembled outside the estimating tool. In that situation, paying less for Joist can leave the highest-effort part of the bid unchanged. For a small job with a straightforward scope, the opposite mistake is common: adopting a plan-based takeoff tool when the team really needs a fast estimate, invoice, and payment path. STACK can then become an extra subscription while the foreman or office still relies on the simpler process that won the work in the first place.

What STACK is for—and where it can be the wrong layer

STACK is for a GC that needs to measure plans and price material and labor before bidding. Its listed range is 2–100 employees, and its typical monthly cost is $200. It connects to Procore, the project-management platform in this vertical that covers schedules, budgets, document control, RFIs, and subcontractor collaboration. That pairing is worth evaluating when takeoff data must be carried into a Procore-centered operating process rather than recreated in a separate spreadsheet. The practical question is whether the people preparing bids receive plan sets often enough to use plan-based takeoff on a regular basis.

STACK is a poor first purchase when the company is not actually taking quantities from plans or when the team cannot make its Procore connection part of the bid-to-budget handoff. Paying $200 per month does not automatically replace the manual habits around a rushed estimate. Before committing, confirm who owns takeoff, how material and labor assumptions are updated, and whether the project manager receives the estimate in the system used to run the job. If those answers still point to paper takeoffs or spreadsheets, STACK has a clear job to do. If they do not, a plan-focused layer may be more process than the firm needs.

What Joist is for—and where simplicity stops helping

Joist is the lower-cost choice for smaller contracting jobs where the same workflow needs to create an estimate, invoice the customer, and collect payment. It is listed at $39 per month for 1–25 employees and connects to QuickBooks Online, which this vertical describes as a hub for job-costed invoicing, AR/AP, and financial reporting. The advantage is not simply a lower bill. It is fewer handoffs when the office needs an accepted quote to become an invoice and the bookkeeper needs the result in QuickBooks Online. That is especially relevant when the scope is simple enough that a full plan takeoff would add more steps than confidence.

The tradeoff is equally concrete. Joist is not listed as a plan-measurement tool and does not list a Procore integration. A contractor using detailed plans, a Procore-centered project process, or recurring material-and-labor takeoffs should not assume that a lightweight estimate solves those needs. The failure mode is duplicating work: a detailed estimate gets assembled elsewhere, then reduced to a customer-facing quote in Joist, while budgets are maintained separately in Procore or a spreadsheet. The difference between the listed prices matters, but it should be weighed against the repeated effort of maintaining two versions of the same estimate.

A practical decision rule for a general contractor

Team size narrows the field but does not make the decision on its own. Joist's listed range ends at 25 employees, while STACK is listed through 100, so a larger firm with plan-based estimating has a clearer reason to evaluate STACK. A small GC may still need STACK if every bid begins with drawings, and a larger firm should not keep Joist merely because it is inexpensive if the estimating work has moved beyond its lightweight role. Conversely, a growing team should not use headcount as a reason to install a more complex tool before its bidding process requires it.

Implementation should be small and testable. Take several recent bids—not just a clean sample—and run them through the proposed workflow. For STACK, verify that plan measurement, material and labor pricing, and the Procore handoff are owned by named people. For Joist, verify that an accepted estimate becomes the expected invoice and that the QuickBooks Online connection fits the bookkeeping workflow. Then compare the manual work still left behind. The best estimating software for a general contractor is the one that removes that specific repeatable task, preserves the handoff to the rest of the stack, and does not create a second estimate record that someone must reconcile later.

The closing choice is straightforward: map one real bid from its first scope information to the job budget, invoice, and payment. If the weak link is measuring plans and pricing labor and materials, evaluate STACK around its Procore connection. If the weak link is moving a smaller job from estimate to invoice and collection, evaluate Joist around its QuickBooks Online connection. That evidence is more reliable than a generic ranking because it tests the work your firm actually repeats.