The Complete Bid Tabulation Checklist for Commercial TI Projects

Why Bid Tabulation Matters in Commercial TI

Commercial TI (tenant improvement) projects move fast. You've got a 2-week window to gather bids, compare them, and submit your proposal to the tenant or landlord. One missed line item or a $5K scope gap turns into a change order that kills your margin—or worse, eats into your profit.

Bid tabulation isn't just about organizing spreadsheets. It's about catching the stuff subcontractors missed, flagging the outlier bids, and making sure your estimate actually covers the work described in the drawings and specs.

This checklist walks you through a real bid tabulation process for a 15,000 SF office build-out in downtown Denver—the kind of project that actually moves the needle for small/mid GCs.

Pre-Bid Setup: Get Ahead Before RFQs Go Out

1. Scope Definition & Bid Packages

Before you send a single RFQ, nail down your bid packages. For a 3-floor office TI, that might look like:

• Drywall & Framing (includes studs, tape, mud, prime coat)
• Painting (all walls, doors, trim — finish coat only)
• Flooring (demo, substrate, new LVT or carpet)
• MEP rough-in (HVAC, electrical, plumbing to code)
• Interior Doors & Hardware
• Finishes (cabinets, trim, base, caulk)
• Low-voltage (data, AV, access control)

Clear bid packages prevent subs from overlapping or skipping work. A drywall crew knowing they're responsible only for studs and first coat (not paint) won't bid $8K higher because they're including finishing work.

2. Create Detailed Scope Documents

Every RFQ needs a scope sheet. Not just "interior painting." I mean: "Paint all gypsum wall board with Benjamin Moore acrylic latex (color TBD), 2 coats finish, includes all prep, sanding, and trim work on interior doors."

Subs will still ask clarifying questions—that's normal—but you'll get 80% fewer "scope not included" emails at bid time.

3. Set Bid Submission Format

Require a standard format: one Excel file with trade name, itemized breakdown by room/area, material costs, labor, markup, and total. Subs who submit PDFs or loose proposals take 3x longer to tab.

If subs aren't being consistent, you're spending time reformatting instead of analyzing. Make it a hard requirement in your RFQ: "Bids not in the attached Excel template will not be considered."

The Actual Tabulation Process

4. Set Up Your Master Bid Tab

Create a master spreadsheet with columns for:

• Trade/Scope (e.g., "Drywall framing & first coat")
• Estimated Quantity (LF, SF, LS, etc.)
• Sub #1 Name & Bid
• Sub #2 Name & Bid
• Sub #3 Name & Bid (get at least 3 bids per major trade)
• Low Bid (auto-formula)
• High Bid
• Average
• Variance % (high vs. low, highlighted if >20%)
• Notes (scope included/excluded, red flags)

This is the spine of your bid tabulation. It should fit on one screen (or print on 2 pages) so you can see all trades at once.

5. Enter Bids Line by Line & Flag Outliers

As bids come in, enter them into the master tab immediately. Don't wait until all bids are in—you'll spot patterns earlier and can request clarifications before subs go quiet.

Example from a recent TI: three drywall bids came in at $18K, $19.5K, and $24K for the same 3,200 SF scope. The high bid included mud/tape finishes that should've been under "painting." Caught that in hour 2, not bid-tab day 10.

A variance greater than 15-20% on any trade is a red flag. Either the low bid is missing scope, the high bid is padded, or there's a major difference in how they're interpreting the specs.

6. Detailed Scope Review for Each Sub Bid

This is where most GCs cut corners. You need to read every sub bid against the actual scope.

Create a comparison checklist for each trade:

• Does the bid include all areas on the drawings? (check each floor, each suite)
• Are they pricing materials you specified, or substituting without asking?
• Is labor included for site conditions noted in the specs? (e.g., "work around existing equipment")
• Do they include cleanup and haul-off?
• Are they pricing code compliance, or cutting corners?
• Is warranty included? For how long?

For low bids especially, this is critical. If an electrical bid comes in 30% below the others, your next email should ask: "Can you confirm you're including conduit in walls, box installation, and rough-to-finish coordination with drywall?"

7. Use a Scope Gap Checker

One of the fastest ways to spot missing scope is to run each bid against a checklist of typical TI items. Tools like a scope gap checker flag things subs commonly forget: base trim, caulk joints, matching existing hardware, etc.

In a 15,000 SF office TI, a missing caulk line item might only be $2-3K, but it's either your margin or a change order.

8. Call Subs with Questions (Don't Assume)

If a bid doesn't explicitly state something, call the sub. "Your painting bid doesn't mention primer. Are you pricing Benjamin Moore acrylic primer on all drywall, or is that extra?"

Don't send subs a "clarification email" expecting them to respond in 24 hours—they won't. A 5-minute phone call kills ambiguity.

Document the call: "Called Rick at ABC Drywall, 2/15 @ 2 PM. Confirmed: bid includes mud/tape to level 3 on all walls. Prime coat NOT included, pricing separately at $3,200."

Creating Your Final Bid Summary

9. Build a Weighted Comparison

Now that you've validated all bids, you can weight them. Most GCs pick the low bid, but that's not always smart.

For example:

• Flooring bid A: $22K (sub you've never used, lowest price)
• Flooring bid B: $24.5K (used them 5 times, zero callbacks)
• Flooring bid C: $26K (premium crew, overkill for this project)

In this case, B might be the right call. You're paying $2.5K more for zero warranty risk and schedule predictability. That's worth it on a TI with a hard move-in date.

Create a summary that shows low bid, recommended bid, and why. Something like: "Recommending Sub B (drywall) at $19.5K over Sub A ($18K) due to superior references on similar scope and inclusion of level 4 finish."

10. Calculate Your Contingency & Overhead

Now total all subs' bids. This is your hard costs. Layer on:

• GC overhead (typically 8-12% for TI): permits, insurance, PM time, equipment rental
• Contingency (typically 5-7% for TI with drawings and specs locked): scope gaps you might've missed, unforeseen conditions
• Profit margin (what you actually need to move forward)

If subcontractor bids total $185K, your overhead is $18.5K, contingency is $11K, and you need 12% margin, you're looking at a $235-240K quote to the tenant.

11. Document Everything in One Bid Tab Report

Your bid tab should become a single document that shows:

• Project name, date, address
• All three quotes per trade
• Notes on why you picked Bid A over B
• Scope notes flagging what each sub is/isn't covering
• Total subcontractor costs
• Overhead & contingency breakdown
• Final quote to client

If you're not already using a free bid leveling template, this is where one saves hours. It auto-calculates variance, flags outliers, and organizes everything in a clean summary format.

Post-Bid Tabulation: Staying Organized

12. Archive Bid Emails & Track Changes

Save every RFQ, bid submission, and clarification email in a project folder. When Sub A calls mid-project saying "that wasn't included," you've got the proof.

If you make changes to the bid tab (a sub reduces price, a scope clarification comes in), track the version number and date. V1.0, V1.1 (clarification on electrical scope), V1.2 (drywall re-bid), etc.

13. Share Final Bids with Subs Before Award

Before you award a job, call your selected subs. Confirm pricing, start date, and any last-minute scope questions. The worst outcome is finding out mid-project that a sub misquoted or bid on the wrong scope.

"Hi Rob, we're awarding the drywall at $19,500. Can you confirm you're starting week of March 1st and that your quote includes all areas on sheets A1-A6?"

14. Build a Bid History Archive

After the project closes, file your bid tab in a project archive. In 12 months, when you're bidding a similar 10,000 SF TI, you'll reference this bid tab to understand pricing trends, sub performance, and typical scope misses.

Over time, this becomes your internal estimating database. "Flooring on 15K SF TI in downtown typically runs $20-25K. Last year we got $22K."

Tools That Speed Up Bid Tabulation

You can do all of this in Excel, but bid tabulation software cuts the time in half and catches more scope gaps.

Most GCs are either overspending an hour per trade comparing bids manually, or missing red flags entirely. Try ClearBids free for 14 days—it auto-flags outlier bids, compares scope across subs, and generates a professional bid report in minutes instead of hours.

The Starter plan ($49/mo) is overkill for one TI but a no-brainer if you're running 3+ projects a quarter. You'll make back the fee in one saved mistake.

Final Checklist Summary

Before you submit your quote to the tenant, make sure you've hit every line:

• ☐ All bid packages clearly defined in RFQ
• ☐ At least 3 bids per major trade
• ☐ Master bid tab created with variance calculations
• ☐ Scope comparison completed for each sub
• ☐ Clarifying calls made on all outlier bids
• ☐ Final bid selection documented with notes
• ☐ Overhead, contingency, and margin calculated separately
• ☐ All bids archived and filed by project
• ☐ Final quote shared with subs for confirmation

That's it. Follow this, and you'll spot scope gaps, catch low-ball bids, and avoid the "that wasn't included" conversation mid-project. Your estimates will be tighter, your change orders will drop, and your margin will actually materialize.