STACK, Square Takeoff, AI tools: compare on your plans.
STACK is a cloud-based takeoff and estimating platform with its own AI-assisted tools, such as Autocount for symbols and Floor Plan AI. Searches for alternatives often also compare tools like Square Takeoff. Feature lists blur together. What separates them on a real bid is review effort, revision handling and how quantities reach your price.
Statements about STACK and Square Takeoff are based on its public positioning and may change. Confirm current features, modules and pricing with the vendor before deciding.
- Cloud takeoff compared
- Square Takeoff, too
- Review & revisions
- Free sample takeoff

Score every tool the same way.
| Criterion | Question to answer on a real bid |
|---|---|
| Takeoff method | Manual, assisted, or AI-proposed? How many clicks for a typical sheet? |
| Evidence | Can a reviewer see where each quantity came from? |
| Review | Is there a queue for uncertain items, or does someone recheck everything? |
| Addenda | How are changed sheets compared and repriced? |
| Pricing | Do quantities map to your assemblies, price lists and labor? |
| Access | Browser, desktop, Mac, iPad? |
What RenderDraw is built around.
Source evidence
Every proposed quantity keeps the drawing tile and sheet it came from.
Review queue
Items are ordered by uncertainty, lowest confidence first, with confirm, edit and reject on each.
Uncertain items flagged
Every item keeps its source sheet, so your estimator can check it against related sheets and schedules. Items the AI can't confirm are flagged, not guessed.
Revisions
Changed sheets go back through the same takeoff and estimator review.
Pricing handoff
Approved quantities hand off to your pricing and, for configured products, to RenderDraw's visual CPQ.
Learns your symbols
Reviewed corrections feed the knowledgebase, so non-standard client symbols improve after a reviewed takeoff or two.
Run one bid side by side.
Pick a real job
Choose a recent bid with the plan set, legend, schedules and at least one addendum.
Build a baseline
Have an estimator check the quantities you want to test.
Run it side by side
Run the same set through your current tool and through a RenderDraw sample.
Score misses and review time
Record missed items, wrong inclusions and the time spent correcting each result.
Your sample files remain private while we assess the request. There is no obligation to proceed.
Stack estimating alternatives, answered.
What are the best STACK alternatives?
Compare tools on takeoff method, evidence, review, addenda handling and the pricing handoff, using one of your own bid sets. Options range from other cloud takeoff tools to AI-assisted platforms like RenderDraw.
STACK vs. Square Takeoff: which is better?
They target overlapping needs. Check each vendor's current features and test both on the same plan set. RenderDraw publishes its own comparison with STACK.
Is RenderDraw a STACK alternative?
For teams that want AI-proposed quantities with source evidence and estimator review before pricing, yes.
How much does STACK cost?
Check STACK's website for current plans.
How do I compare without wasting a week?
Use one recent bid with an addendum, an estimator baseline and a simple scorecard: missed items, wrong inclusions and correction time.
Send one plan set. Judge the result yourself.
A focused, no-obligation evaluation on your own drawings. Your sample files remain private while we assess the request.
- Upload one representative plan set (a legible PDF set is the most reliable starting point), plus an addendum if you have one.
- RenderDraw reviews the set and the scope you want tested.
- We follow up with what was extracted, what was flagged for review, and the most useful next step.