Bar list quantity quotes, drafted from the bid set for your estimator to check.

A contractor's invitation lands with structural sheets, the reinforcing section of the specification and whatever addenda exist so far. Your estimator reads the general notes for grades, coating, lap and hook rules, works through the column, beam, footing and wall schedules, counts what the details imply, adds chairs and splices, and writes down what the set fails to settle. Only then can anyone build a number.

In the test, AI works from copies of bid sets you already priced and drafts the quantity sheet in the layout your estimators use: each member and schedule mark with its bar size, grade, coating, count and length, the laps and hooks it added and where it read them, the accessories called out, and a separate list of members someone must take off by hand or clarify. Your reviewer sets each draft beside the sheet your team really priced from.

A bid set may or may not hold a bar list. Ohio's Item 509, in its 2013 specifications, recalculates a disputed pay weight from the number, length and weight of bars on the plans' steel list. Colorado's Bridge Detail Manual, effective May 29, 2026, tells designers to leave bar lists off the plans except when required. Caltrans' Construction Manual says steel lists are requested only for specific reasons, and not for an assistant resident engineer's convenience. So one bid hands your estimator a list to check and the next hands over only details, and each draft line says which kind of source it came from.

Counts hide in the notation. Wyoming's Bridge Applications Manual calls finding a bar's count billing. A callout of 405-10 at 12 inches across 22 feet bills 23 bars, one more than the spaces. 817-3 at 12 inches across 9 feet marked EF, for each face, bills 20, and a stirrup marked T&B splits between top and bottom faces. The manual bills each bar once but lets it be called out elsewhere on the plans, so a reader who totals every callout counts the steel twice. The draft names the callout it billed from and lists every other place that mark appears.

Laps follow the stock length, and that varies by owner. Because bars are stocked in standard lengths, Wyoming won't allow one detailed past 60 feet, and longer runs use 60-foot bars plus one shorter bar. Colorado figures splice locations and quantities on 40-foot lengths for #5 and below and 60-foot lengths for #6 and larger, insists splice lengths are counted rather than estimated, and forbids lapped splices above #11. South Carolina's August 30, 2023 memo lifted its galvanized limit from 40 feet to 60 and sets #3 and #4 bars at 30. The draft states the length it assumed and the note it read, and a run with no guidance goes to your estimator.

One section can name half a dozen steels. University of Houston's master Section 03 20 00 calls for ASTM A615 at Grade 60 or 75, low-alloy A706 for noted longitudinal bars and any bar to be welded, A1035 for noted transverse or spiral bars, A767 galvanized after fabrication and bending, A775 epoxy, and A934 for bars coated after fabrication, each where the drawings say. Colorado puts a mark beside whichever of coated or plain bars is scarcer and explains it in the general notes, so one note changes how a whole sheet reads. CRSI's estimating chapter lists extras for bar sizes, grades, bending, special services and special items, which is why a single total weight can't carry a quote. Each size, grade and coating keeps its own line.

Accessories count even where the pay item ignores them. Iowa's Section 2404, revised October 20, 2026, pays per pound on theoretical weight, makes no adjustment for galvanizing or epoxy coating, and folds ties and supports into that payment. Someone still buys them. Minnesota's bridge construction manual uses standard symbols such as SB slab bolster, BB beam bolster, BC individual bar chair and HC individual high chair, CRSI's RB4.1-2022 covers supports for reinforcement, and Houston's section asks for product data on mechanical splices, hooked anchorage and dowel bar substitute systems. The sheet lists what the set calls out and leaves cost to your estimator. Your reviewer will look hardest at bar counts, coated lines and whether the open list caught the members that drew a question on the real bid.

With a yes, new bid sets get a draft sheet for about 30 days, and your estimator approves every quantity before anything is priced or sent.

Nothing posts to your estimating system without that person, and the side-by-side scoring runs through the month. Any further job is your decision, with a price of its own.