What STACK is

STACK is a cloud takeoff and estimating platform used across a lot of trades. Estimators measure plans in the browser, several people can work the same project at once, and the quantities feed the estimate. The collaboration and the access-from-anywhere part are what STACK sells hardest.

The measuring itself is still manual. STACK speeds that work up and keeps it organized across trades. It does not sit down and read your window schedule for you.

Source: STACK’s own site. We describe competitors from their public positioning and avoid guessing at features or pricing.

Choose STACK if

Your estimators work from different offices, or on different trades, and need the same project open at the same time.
You price several trades and want takeoff and estimating in one subscription.
Breadth is worth more to you than depth in any single trade.

Choose One to Many if

The scope is windows and doors, and what sets the price is operation, handing and glazing rather than area and length.
You want the plan set read for you, with the schedule and the elevations reconciled, instead of measured by hand in a nicer interface.
What you need out the other end is a priced, configured quote.

When not to use One to Many

Multi-trade takeoff. If the same team prices drywall and flooring, One to Many is no help on any of it.
Cloud collaboration as the deciding purchase criterion. STACK is built around that. One to Many is built around detection.

How to decide

Count the trades you price. If the answer is more than one, STACK is the better fit. If the answer is windows and doors, and what you need is unit-level detail and a quote at the end, that is the job One to Many was built for.

Reviewed: August 2026.