SHEET T-GEN  ·  BLOG TAG PROJECT AOS / OPERATING SYSTEM REV 01 STATUS 15 POSTS
§ 02.00  ·  General Contractors

Posts for general contractors.

Mid-market commercial GCs are stuck between enterprise platforms priced for the top-50 ENR contractors and point tools that don't talk to each other. These posts cover the structural problem in the mid-market GC stack, what a real replacement has to do, and the workflows (AP, change orders, closeout, subcontractor coordination) that determine whether your firm's office labor scales with revenue or with vendor count.

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May 27, 2026 10 min read

Why the mid-market GC software stack is broken (and what to put in its place).

A mid-market general contractor in 2026 — a firm doing $50 million to $300 million a year, running 15 to 60 active projects, with a 30 to 200 person office — sits in the most under-served bracket of construction software. Too big for QuickBooks. Too small for the enterprise platforms whose pricing assumes you're a top-50 ENR contractor. Stuck stitching together four to six vendors that don't talk to each other, paying the integration tax in office labor.

May 27, 2026 8 min read

Construction AP automation and tiered approval for mid-market GCs.

Accounts payable in commercial construction is structurally different from AP in any other industry. Tiered approval chains, lien-waiver coupling, three-way matching against the sub's pay app and the project's budget, retention math, and pay-when-paid statutory protections all live inside what would otherwise be a routine 'pay the bill' workflow. This is a guide for mid-market GC accountants and controllers on how construction AP actually has to work, what most GCs run today, and how AOS automates the chain end-to-end.

May 27, 2026 7 min read

Why GCs should care about their subs' tech stack.

If you're a general contractor, you've probably never asked a sub at qualification what software they use. It's none of your business, in a contractual sense. But operationally, it's some of your business — because the sub's tech stack determines how much office labor your GC team spends on every project. Here's a frank look at the four specific places the sub's tech stack hits the GC's P&L, and what GCs should actually do about it.

May 27, 2026 8 min read

The construction closeout binder: continuous assembly instead of closeout-week panic.

The construction closeout binder is the most labor-intensive document deliverable on any commercial project — and on most projects it's assembled by a project engineer in a three-month panic at the end of the job, chasing subs for documents that should have been collected when the work was done. Here's what's actually in a closeout binder, why most binders get built the wrong way, and how to assemble one continuously through the project instead.

May 27, 2026 8 min read

Construction change orders: four patterns and how to manage them without margin erosion.

Change orders are the second-most-disputed line on every commercial construction project, after retention. The dollar volume in change orders on a typical mid-sized project runs 5-15% of contract value, and the management of them — pricing, approval routing, schedule impact, aging, payment — is where margin gets made or lost on both the sub side and the GC side. This is a working guide to the four common change-order patterns, how each one should be priced and routed, the aging problem that quietly erodes margin, and how AOS handles the whole flow.

May 27, 2026 8 min read

Construction COI compliance: how subs maintain coverage and how GCs actually verify it.

Certificate of Insurance compliance is one of the most labor-intensive recurring administrative tasks in commercial construction. Subs maintain four to six active policies, file COIs to every GC client on every active project, and chase renewals continuously. GCs verify dozens of COIs across hundreds of active sub-project relationships and have to track expirations against every project they're on. The cost of getting this wrong — whether you're the sub whose policy lapses mid-project or the GC who paid an uninsured sub — ranges from "annoying" to "company-ending." This is a working guide for both sides on how COI compliance actually works, the recurring mistakes, and how AOS handles the lifecycle.

May 27, 2026 8 min read

Construction cost coding and chart-of-accounts decisions for mid-market firms.

Cost coding is the most consequential foundational decision in a commercial construction firm's accounting setup, and it's the decision most often made by accident — inherited from the predecessor controller's 2014 setup, copied from the GC down the street, or matched to the estimator's spreadsheet templates from a prior firm. This is a working guide for mid-market commercial subs and GCs on how cost coding should be designed, why cost-code drift across systems is the root cause of pay-app reconciliation pain, and how to think about restructuring without breaking the historical record.

May 27, 2026 8 min read

Construction submittal management: from log entry to install approval without version drift.

Submittals are the workflow that determines whether the product installed on your project actually matches what the architect specified. Get them right and the install proceeds cleanly. Get them wrong — missing approvals, version drift between the approved submittal and the installed product, or install-without-approval — and you're rebuilding a wall on your own dime, or arguing at closeout about whether the substituted product meets the spec. This is a working guide to the submittal lifecycle for mid-market commercial subs and GCs: the submittal vs RFI workflow distinction, the architect's SLAs, the recurring failure modes, and how AOS handles the cross-tenant flow.

May 28, 2026 7 min read

Construction RFI management: from field question to architect response without inbox limbo.

The RFI — Request for Information — is the workflow that determines whether questions raised in the field get clean answers in time to keep work moving, or whether they pile up in email inboxes until the schedule slips. RFI cycle time and resolution rate are two of the most consequential metrics on every commercial project, and most of the time they're not measured because nobody owns the log. This is a working guide for mid-market subs and GCs on RFI management.

May 28, 2026 7 min read

Construction punch list management: from substantial completion to certificate of occupancy.

The punch list is the workflow that determines whether your project actually closes out cleanly — or sits in punch limbo for months while the GC and subs argue about who owns which incomplete item. The list itself isn't complicated. The management of it, across the sub-GC-owner-architect chain, is where projects either ship on time or grind to a halt three weeks before substantial completion. This is a working guide on construction punch list management.

May 28, 2026 8 min read

Subcontractor prequalification for general contractors: a working framework.

Subcontractor prequalification is the GC's first line of defense against project risk — bonding capacity, insurance coverage, safety record, financial stability, references, and operational capacity all checked before the sub bids, not after they've been awarded. Done well, it filters out the firms most likely to default mid-project, deliver substandard work, or generate liability exposure. Done as a paperwork ritual, it produces a binder full of stale forms and zero actual screening.

May 28, 2026 9 min read

Construction safety management and EMR: a working guide for mid-market commercial subs.

Safety management is the workflow that determines whether your firm can keep winning commercial work, what your workers' comp insurance costs, and (most fundamentally) whether the people on your jobsites go home in the same condition they arrived. EMR — the Experience Modification Rate — is the single number every GC will check during prequal, every insurance underwriter will base your rate on, and every owner will use to filter eligible bidders on certain projects. This is a working guide for mid-market commercial subs on how safety actually has to work.

May 28, 2026 9 min read

Construction project scheduling: CPM, baseline, and the working schedule.

The project schedule is the document that determines whether your project hits substantial completion on time — or slips by weeks while the GC and subs argue about whose delay caused which milestone to miss. CPM scheduling, baseline vs working schedule, weekly look-aheads, delay attribution, and concurrent delay analysis are the workflows that separate projects that ship on time from projects that ship at all. This is a working guide for mid-market subs and GCs on how project scheduling actually has to work.

May 28, 2026 8 min read

Construction warranty management: from substantial completion through the warranty period.

The construction warranty period starts the day after substantial completion and runs for one year on most commercial projects — longer for specific systems (roofing, glazing, mechanical equipment, foundation work). Whether that warranty period goes smoothly for the GC or sub depends almost entirely on how well warranty obligations were documented at closeout and how the warranty-claim workflow is structured. This is a working guide on construction warranty management.

May 22, 2026 5 min read

Introducing AOS — one operating system for every seat in AEC.

Construction has run on a patchwork of tools none of which were built for it. AOS is one operating system, one record, and one bill — for general contractors, owners and developers, subcontractors, architecture firms, and residential builders.