Revised August 22, 9:10 a.m. from $781,000 at bid time. Leveled on the revision at the estimator's direction.
Lowest
Bidder
Amount
Base bid
Northgate Drywall & Acoustics
$752,000.00
Complete leveled total
Prairie Wall & Ceiling Co.
$803,800.00
Leveled total = base bid + plugs marked Carry "Yes" on the Plugs sheet. A bid is complete when every gap carries a plug. Suggested plugs are the highest price another bidder itemized for the same line; change the amount, or set Carry to "No", on the Plugs sheet. As of 2026-08-22. This is a comparison, not an award recommendation.
Scope
Scope
Northgate Drywall & Acoustics
Prairie Wall & Ceiling Co.
Ridgeline Interiors
Metal stud framing
Included
Included $312,000
Included
Gypsum board, Level 4 finish
Included
Included $326,200
Included
Level 5 finish at lobby (Addendum 2)
Not mentioned
Included $14,600
Included
Shaft wall
Included
Included $58,300
Included
Sound attenuation batts
Included
Included $22,800
Excluded: "Excludes insulation"
In-wall blocking
Included
Included $18,900
Included
Exterior glass-mat sheathing
Excluded: "Exterior sheathing by others."
Included $41,200
Included
Firestopping at this trade's penetrations
Unclear: "Fire caulking at head-of-wall joints per UL details."
Included $9,800
Excluded: "Excludes insulation and firestopping."
Addenda
1 (missing 2)
1, 2
1, 2
Base bid
$752,000.00
$803,800.00
$789,500.00
Plugs
Bidder
Scope
Bid says
Plug
Source
Carry (Yes/No)
Northgate Drywall & Acoustics
Level 5 finish at lobby (Addendum 2)
Not mentioned
$14,600.00
Suggested: Prairie Wall & Ceiling Co. itemized $14,600 for this line
Yes
Northgate Drywall & Acoustics
Exterior glass-mat sheathing
Excluded: "Exterior sheathing by others."
$41,200.00
Suggested: Prairie Wall & Ceiling Co. itemized $41,200 for this line
Yes
Northgate Drywall & Acoustics
Firestopping at this trade's penetrations
Unclear: "Fire caulking at head-of-wall joints per UL details."
Open: ask the bidder what the wording covers
No
Ridgeline Interiors
Sound attenuation batts
Excluded: "Excludes insulation"
$22,800.00
Suggested: Prairie Wall & Ceiling Co. itemized $22,800 for this line
Yes
Ridgeline Interiors
Firestopping at this trade's penetrations
Excluded: "Excludes insulation and firestopping."
$9,800.00
Suggested: Prairie Wall & Ceiling Co. itemized $9,800 for this line
Yes
Questions
Bidder
Question
Northgate Drywall & Acoustics
Your bid acknowledges Addendum 1. Confirm you received Addendum 2 and that your price covers it.
Northgate Drywall & Acoustics
Your bid doesn't mention level 5 finish at lobby (Addendum 2). Is it in your base bid? If not, what would you add?
Northgate Drywall & Acoustics
Your bid says "Exterior sheathing by others." Confirm your bid excludes exterior glass-mat sheathing, or give us an add price.
Northgate Drywall & Acoustics
Your bid says "Fire caulking at head-of-wall joints per UL details." Does your base bid include firestopping at this trade's penetrations?
Ridgeline Interiors
Your bid says "Excludes insulation". Confirm your bid excludes sound attenuation batts, or give us an add price.
Ridgeline Interiors
Your bid says "Excludes insulation and firestopping." Confirm your bid excludes firestopping at this trade's penetrations, or give us an add price.
Ridgeline Interiors
Your revised number came in the morning after bids closed. What changed from the $781,000 you sent at 1:52 p.m.?
Part of a fictional sample project for Bid Leveling.