Practical reading

Homeowners and small crews

Estimate grader, spreadsheet or side-by-side PDFs?

Compare a guided estimate checklist, spreadsheets and original documents. Worked examples keep price gaps, exclusions and corrected totals tied to their supplied scope.

Prepared with AI assistance. Original worked examples are fictional; primary sources are linked beside the claims they support.

Read this article as Markdown · Browse worked examples

Match scope before comparing totals. A written exclusion and an unanswered question stay visible beside the supplied price.
Original explanatory diagram. Match scope before comparing totals. A written exclusion and an unanswered question stay visible beside the supplied price. Open the diagram at full size.

Use a spreadsheet when you need to calculate and compare many price rows. Use side-by-side estimates when you need the original wording, exclusions and commitments. Use Estimate Grader for a guided self-assessment: you check one estimate, record which details you found and prepare questions from your answers. A useful decision often combines the original documents with one working comparison.

The methods solve different parts of the job. None can turn an unspecified allowance into a fixed price or establish a contractor's competence from a total. This is an original workflow comparison, not a ranking based on contractor outcomes or a claim that software verifies the work.

Compare the methods

MethodMost useful whenWhat needs extra careSensible stopping point
Side-by-side PDFs or paper estimatesTwo short documents use similar scope and unitsSimilar-looking totals may include different work; handwritten clarifications may be easy to missMark the exact scope, exclusion and unanswered question on a working copy
SpreadsheetMany quantities, alternatives or supplied unit prices need arithmeticA formula can be correct while its input is wrong; an empty cost cell must not become an included zeroKeep each row tied to the estimate edition and label assumptions
Estimate GraderYou want a checklist of details you found, an entered-amount check and next questionsYou read the estimate and choose each answer; the tool does not analyze a document or judge workmanship or valueAsk the first material unanswered question and correct the supplied fields
Written clarification requestA missing inclusion or term could change the decisionA request is not an answer; a conversation may still need a current written estimatePreserve the actual reply and compare again

The FTC recommends multiple written estimates and attention to work, materials, timing and price. Those are useful starting fields. The specific method below is our own constructed example, not a statement that a particular bid or contract meets a legal requirement.

Work through a price gap before choosing

Suppose fictional Estimate A is $1,840 and explicitly excludes disposal. Estimate B is $2,010 and explicitly includes disposal. The visible totals differ by $170. That arithmetic is true, but it does not yet describe equivalent work.

If A's contractor later confirms disposal at $230, A's known combined amount becomes $2,070. For that now-stated scope, B is $60 lower. Keep both stages of the comparison: $170 was the original total gap; $60 is the gap after the specific confirmation. Do not present the first number as an error simply because the information improved.

If the disposal cost remains unknown, the honest comparison is “A: $1,840 plus disposal at an unknown price; B: $2,010 including disposal.” It is not “A: $1,840 all-in,” and it does not support inventing an average disposal fee. Read the full exclusion example for a finished clarification note.

Keep scope beside the arithmetic

A spreadsheet row saying “panels — six — $45” can establish $270 from those supplied inputs. It cannot establish that six panels cover the site. If the quantity changes from eight to six, record the source of that correction and preserve the unrelated commitments. The quantity-correction example follows that change through a complete total.

Small comparison sheets work best when each number has a role: stated price, confirmed addition, optional item or unresolved amount. Keep currencies and tax statements explicit. “Tax not stated” and “tax included” are different. Do not silently substitute zero for a blank field merely to obtain a clean grand total.

Decide what to ask next

Choose the question most likely to change the comparison: whether the same work is included, whether an allowance is conditional, or whether timing fits the actual need. A missing term deserves a question, not an automatic bad-contractor label. Our missing-terms example shows a specific request that a recipient can answer without decoding a score.

The grader is a checklist for one estimate at a time. You choose Recorded, Not recorded, Unknown or Not applicable and enter supporting details. It does not read an uploaded or pasted estimate. Its amount fields are labor, materials, other charges or tax, and the quoted total; it checks their arithmetic without automatically importing two bids or calculating a quantity schedule. The side-by-side and quantity arithmetic in these articles are authored worked demonstrations you can keep in your comparison note.

The takeaway keeps your supplied details beside the exact entered-amount check and questions arising from your missing or unknown answers. Public tool-example URLs contain fictional inputs and do not commission work. Keep the source estimate available, review the question sheet and edit the assessment note before forwarding it.

Check your own estimate. Finish with a clearer question or a corrected comparison, then use the actual written response for the next decision.

Make it useful for you

Bring your own details.

Use your own details, then review the result.

Check my estimate

Start without an account. Use your own information, then read and edit the result. The example's people and values do not transfer.