Bluebeam and Excel vs estimating software: the join that leaks

So where's the leak, then?

"We've already got Bluebeam and Excel, why would we need estimating software?" Fair question. And honestly, both tools are good at what they do.

Revu is an excellent measuring and markup tool, used right across architecture, engineering and construction. A well-kept workbook prices a job properly too, with your own rates, formulas and comparison sheets. Neither tool is the problem. The trouble is the hand-off. Each file holds part of a number's story, and a person carries the rest of it between them.

Think about where the price on a commercial tender actually comes from. Mostly subcontractors. Their quotes turn up qualified, the drawings change in the final week, and every one of those lands right on a join.

So the money leaks at the join. We built Estimator+ to remove it, and here's what we mean.

Let's follow one wall into cell D27

Take one wall type, W3. It's an illustrative one, but you'll recognise it: steel stud with plasterboard both sides, 3.0 m high, on sheet A-201 Revision B. All figures are ex GST.

1. You measure the W3 runs in Revu as polylengths (Bluebeam's multi-segment lengths). The Markups List totals them at 412.5 m.
2. Quantity Link, which comes on Revu's Complete and Max plans, sends that total into cell D27 of your internal walls sheet. In Bluebeam's words, it transfers "measurement totals from a local PDF to an Excel spreadsheet in real-time". Handy.
3. A formula multiplies it by the 3.0 m height, so you get 1,237.5 m². A check rate of $62 per square metre gives you $76,725.
4. Then the plasterer's quote arrives as a PDF. Lump sum, $71,800, for "W3 partitions as per A-201 to A-204 Revision B, excludes bulkheads".
5. You type the quote into a comparison sheet. The exclusion goes in a cell comment, and a note goes into the qualifications document over in Word.

By step five that one quantity has three homes. The geometry sits in the PDF. The number sits in D27. And the basis the plasterer actually priced on is split between a comment and a separate document.

What D27 can't tell you

Look, nothing in those steps is a mistake. You'd probably do exactly the same. The money leaks at the joins between the files, and this is where.

• A linked cell holds a total, not its source. D27 doesn't record the drawing revision, the segments behind it, or that the link was filtered on the subject "W3".
• New wall types wait for someone to edit the link by hand. Bluebeam's own support page says "your filtering criteria need to be changed manually", so a new type like W3a stays out of the workbook until somebody goes in and edits the link.
• A lump sum is priced against a moment. It covers the quantity on the drawings it was given against, and nothing in the workbook says which revision that was.
• Exclusions live in comments. That bulkhead exclusion depends on whoever typed it remembering it's there, which, fair enough, is a bit much to ask late on a Thursday.
• The submission's a separate document. Your qualifications get written in Word, away from the quantities and quotes they're describing.

Then Addendum 01 lands

Picture it. There's a week to go, and Addendum 01 issues A-201 Revision C. A store off the corridor gets made smaller, and two of your W3 runs get shorter.

In Revu, Batch Slip Sheet (also a Complete and Max feature) swaps the superseded pages for the revised ones and can carry the markups across. You edit the two runs, the total drops to 398.0 m, and Quantity Link updates D27. The area becomes 1,194.0 m² and the check price $74,028. So far, so good.

Here's the thing, though. The link reaches the measured quantity and nothing else.

To be fair, collaboration inside each tool is well looked after. Bluebeam Studio Sessions let a team mark up the same PDF together, and Excel's co-authoring shows your colleagues' changes "in a matter of seconds".

The join between the tools, though? Still a person. In the busiest week of the tender. And a missed join shows up after award, when the plasterer's price turns out to cover Revision B rather than the walls being built.

When the two of them are plenty

Honestly, for a small job with one estimator, one trade and no expected revisions, Bluebeam and Excel do the job well. We're not going to pretend otherwise.

But every extra trade adds a join someone keeps by hand. So does every extra quote, every extra person on the job and every addendum. Past a point, your last week goes on keeping files in agreement with each other, and the risk sits in whichever join nobody got round to checking.

The same wall in Estimator+

We reckon there's a better way, and here's why. Estimator+ removes the join by making the takeoff and the price one record, in one live tender. Ask for the takeoff and the AI measures the set, W3 included.

Each quantity is measured on the drawing at the sheet's printed scale. A wall type with a printed height comes out as wall area. Rather measure it yourself? You can. Either way, the W3 line holds its shapes, its sheet and that sheet's revision.

The plasterer's lump sum goes onto the W3 line, fixed to the quantity it was given for. The other plasterers' rates follow the live quantity. And if bulkheads are their own line, this plasterer's price on it is marked excluded, and an excluded price can't be picked.

The written exclusion gets recorded against the plasterer as the quote comes in. Pick that plasterer and it's waiting on the Clarifications tab, ready for you to bring across to the client. No hunting through cell comments.

Then Addendum 01 goes onto the tender. Revision C carries the same drawing number, so it takes Revision B's place. The measurements and the scale carry over, and Revision B stays there underneath.

Flick between the two to see what changed, redraw the two runs, and the line reads 1,194.0 m². The rates recalculate, the lump sum holds at $71,800, and your call to that plasterer starts from a known difference.

And Excel's still there when someone in the office wants it. You can export an unpriced scope of works for subcontractors, or the full priced workbook. The workbook carries a transmittal of every drawing the tender was priced from, with its revision and the addendum it came in.

Got a tender with an addendum in it? Bring it along and book a demo, and you can watch the quantity and its price move together.