What belongs in the estimating review allowance?

Drawing and takeoff checks, vendor and freight calls, margin review and the rework that follows a changed scope. Use the share your own quote log shows, not a default.

How do I measure quote completion rate?

Divide line items quoted by the hours the estimator logged over several comparable jobs. Separate simple catalog work from custom work, because the two rates differ widely.

Why compare with available quote hours?

A quote time only matters against the deadline. The margin shows slack; an overage shows how many hours to recover through a second estimator, fewer review cycles or a scoped quote.

Can the review allowance exceed 100 percent?

It should not. A 100 percent allowance already doubles the base estimating time; anything more means the base rate is wrong rather than the review being heavy.

Furniture, Fixtures & Interior Products calculator

Custom Order Quote Time Calculator

Estimate the estimator hours a custom quote needs from the line items and the quote completion rate, then add a review allowance. The page states the margin or the overage against the hours available before the quote is due.

What this calculator does

Estimator hours a custom quote needs from its line items, the completion rate and a review allowance, against available hours.

Formula used

Base quote time = custom line items ÷ quote completion rate
Required quote time = base quote time × (1 + review allowance ÷ 100)
Allowance hours = required quote time − base quote time
Margin to available = available quote hours − required quote time

Inputs explained

Custom Line Items: Line items in the quote, from the takeoff.
Quote Completion Rate: Line items an estimator completes per hour.
Estimating Review Allowance: Percentage added for review, checks and rework.
Available Quote Hours: Estimating hours available before the quote is due.

How to use the result

Best suited to scheduling an estimator queue, setting quote turnaround, deciding a second estimator is needed.
Vendor lead-time research and customer revisions after submission are excluded. A first-time product may run slower than the average completion rate.

Current U.S. benchmarks

The producer price index for lumber stands at 286.633 (BLS, Aug 2026), up 7.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The U.S. has 14,378 furniture and related products establishments employing about 355,594 workers (Census County Business Patterns, 2023).

Common questions

What belongs in the estimating review allowance? Drawing and takeoff checks, vendor and freight calls, margin review and the rework that follows a changed scope. Use the share your own quote log shows, not a default.
How do I measure quote completion rate? Divide line items quoted by the hours the estimator logged over several comparable jobs. Separate simple catalog work from custom work, because the two rates differ widely.
Why compare with available quote hours? A quote time only matters against the deadline. The margin shows slack; an overage shows how many hours to recover through a second estimator, fewer review cycles or a scoped quote.
Can the review allowance exceed 100 percent? It should not. A 100 percent allowance already doubles the base estimating time; anything more means the base rate is wrong rather than the review being heavy.

Last reviewed 2026-10-01.