[ Steel ]
Delegated connection design, the fabrication and erection split, and misc metals that arrive by addendum.
Mill lead times and shop capacity set the schedule; delegated design and miscellaneous metals set the risk. Both are stated in the specification long before the tonnage is known.
The whole package, opened out.
Every document that governs a steel bid, and the ones that hide something.
- 00 21 13Instructions to bidders
- 01 11 00Summary of workMandatory site visit
- 01 33 00Submittal proceduresReview duration
- 05 12 00Structural steel framingDelegated design
- 05 50 00Metal fabricationsMisc metals late
- S-101Framing plans
- S-401SectionsAESS category
- S-501Connection details
- ADD-03Addendum 3
9 documents in this steel package. 5 of them carry something that changes the number, and only one of those is a drawing.
Read the document, not the summary.
One extract from the steel documents, at the scale an estimator reads it.
26 weeks to first steelErection starts week 224 weeks short
What it catches in steel.
Each one cited to the document and page that proves it, so an estimator can verify it, price it, and approve the move.
- Connection design delegated to the bidderSpec 05 12 00 §1.5
Connection design is the fabricator’s responsibility, sealed by a licensed engineer. That is an engineering fee, a schedule, and a liability, none of them in the tonnage.
ADDED COST - Miscellaneous metals arrive by addendumSpec 05 50 00 · addendum 3
Stairs, railings, and embeds are added after the structural package priced. The tonnage barely moves and the labor does not.
SCOPE GAP - AESS category unstatedSpec 05 12 00 §2.3 · drawing S-401
Architecturally exposed steel is called out on the drawings without naming its category. The finish, tolerance, and welding requirements each depend on which one applies.
FINISH DELTA - Submittal duration outruns the scheduleSpec 01 33 00 · project schedule
Shop drawing review time plus mill delivery lands past the steel erection milestone the schedule holds you to.
SCHEDULE RISK
Illustrative of the conditions this trade bids. Named pursuits, companies, and prices across this site are fictional.
Sector changes the clauses.
The same trade prices very differently depending on what is being built.
Warehouse & logisticsRepetitive bays where a connection assumption multiplies across the frame.
Data centersPlatform steel and equipment support added late by the mechanical and electrical packages.
EducationExposed steel in commons and gymnasia with tolerances written in the specification.
HealthcareRooftop and interstitial support coordinated across three trades’ drawings.
Civic & stadiumLong-span and exposed work where category and finish drive the fabrication hours.
How ArosBid runs it.
ArosBid builds a cited bill of materials with installed labor hours, then holds it against every addendum so a late package is caught as a change rather than a surprise.
- Trimble AutoBid
- Bluebeam Revu
- Excel
- Outlook