Commercial Construction Estimating Services Built to the Owner's Bid Form
Commercial estimating services for hard bid, GMP and negotiated work: a CSI 01-49 build-up returned in your owner's bid form structure, alternates in the owner's numbering, every unit price row filled. Delivery is 24-96 hours from an approved fixed quote, and a 600 sheet CD set sits at the top of that window.
What a commercial package ships with
- Editable Excel or CSV in your bid form's line order
- Add and deduct alternates priced as their own build-ups
- Unit price rows at the units the schedule publishes
- Color-coded marked-up PDFs of every sheet measured
- Written assumptions, inclusions and exclusions, by division
What commercial construction cost estimating delivers, and how it maps to the bid form
Three files land in your inbox, and their structure is decided by your owner's documents rather than by our template. Here is what sits in each, and which one you transcribe from at 3pm on bid day.
The three files
The same three on a 40 sheet fit-out and on an eight story core and shell.
The estimate workbook
EXCEL OR CSVLine items across CSI MasterFormat divisions 01 to 49, quantity, unit, unit cost and extended total on every row, sorted into the order your bid form reads.
Base bid, alternates and unit prices on separate tabs
The base bid never quietly contains an alternate, and no alternate is a percentage of the base. Each totals on its own and reports the delta the owner writes on their tab sheet.
Your cost codes beside the divisions
Send the code list at upload and the workbook comes back mapped to it, with CSI 01-49 alongside for the reviewer who thinks in divisions.
What the second estimator opens
An estimator who did not measure the job reopens the highest-value divisions against the sheets, then reads the alternate deltas, the markup rows and the exclusions back against Division 01. Two steps in total, both before the file leaves, and no third one is claimed.
The marked-up drawings
COLOR-CODED PDFEvery sheet a quantity came off, with the base bid, each alternate and each addendum carrying its own color, so a reviewer can see which scope a measurement belongs to before opening the workbook.
The assumptions, inclusions and exclusions sheet
BY DIVISIONWhat was carried, what was assumed, what was left out, and which party each gap belongs to. Written before delivery, not during a scope argument at buyout.
Filed by division, not written as a paragraph
An exclusion filed under Division 07 gets found by the person reading Division 07. One buried in a paragraph gets found by the owner's attorney.
What decides the shape of it
Three documents change the file before a quantity gets measured.
The published bid form
READ FIRSTOpened before the drawings. It sets how many alternates exist and in what order, what each unit price row is called and what unit it is stated in, and where the owner's fixed allowances land.
Division 01 general requirements
SECTION 01 21 00Stated allowances, temporary facilities, testing, mock-ups, cleaning, closeout. Money Division 01 makes yours whether or not it appears on a drawing.
The instructions to bidders
RESPONSIVENESSBid security, subcontractor listing, acknowledgment lines and the substitution deadline are what get commercial bids rejected. None of it is arithmetic, and all of it is checked before your number is.
Quantities only, if that is the whole ask
CHEAPER ORDERPlenty of commercial GCs hold their own rates and want the measurement back unpriced. A separate and cheaper order off the same drawings.
Takeoff servicesSee a delivered package first
FreeA real anonymized package, sent to a work email. What to test on it: whether a figure in a total names the sheet it came off, and whether the exclusions are filed where the reviewer of that division would look. Apply the same test to anything else you are being quoted.
See sample deliverablesThe commercial bid estimate, returned on the owner's own bid form
A commercial bid gets thrown out for a form defect long before anybody opens the arithmetic. Every field on the form, what it has to carry, and the specific way each one goes wrong on bid day.
| Base bid, words and figures | One stipulated sum, words and numerals agreeing | They disagree, and the written words govern |
|---|---|---|
| Add and deduct alternates | Each one numbered as the owner numbered it | Alternate 3 priced against alternate 2's scope |
| Unit price schedule | A rate at the unit the schedule actually states | Priced per CY where the form says per LF |
| Stated allowances | Carried at the Division 01 amount, not repriced | Allowance re-estimated and the sum moves |
| Addenda acknowledgment | Every addendum number, including the last one | Addendum 4 unacknowledged, bid nonresponsive |
| Bid security | Bid bond or certified check at the stated percent | Power of attorney missing from the bond |
| Subcontractor listing | Named subs wherever the instructions require it | A trade left blank, or listed past the deadline |
| Voluntary alternate | Its own sheet, never folded into the base bid | Base bid conditioned on a substitution |
| Signature and seal | Signed by somebody with authority to bind you | Estimator signs with no authority on file |
Add and deduct alternates, priced independently, in your owner's numbering
Bid alternates pricing is where most commercial numbers go soft, because the fast way is a percentage of base and the fast way is wrong. Four rules keep them honest.
Each alternate is its own build-up
An alternate priced as a percentage of the base bid is a guess wearing a decimal point. Alternate 2 gets measured, crewed and priced on its own sheet, and reports one figure: the delta the owner writes on their tab sheet. Accept 1 and 4, reject 2 and 3, and your number still adds up.
A deduct is almost never the mirror of the add
Deducting scope you never mobilized for is not the same money as adding scope you did. Take out the terrazzo and you keep the substrate prep, the transition strips and half the protection. Take out a floor of fit-out and general conditions barely move, because the superintendent stands there for the same seven months.
Alternates that touch each other get priced as a matrix
Alternate 1 adds a rooftop unit. Alternate 3 adds the mezzanine its ductwork would have crossed. Separately they cost one thing, together another, and the owner's tab sheet has no column for that. Interactions get flagged with the combination and the difference stated.
Alternates that move duration carry the time with them
An alternate that puts two months of curtainwall lead on the critical path adds two months of general conditions, and general conditions are a duration cost, not a percentage of scope. Each alternate states whether it carries its own general conditions, overhead and fee, or rides on the base bid's.
Unit price schedules, and the add-only trap
The unit price rows on a commercial bid form are contract rates you will still be living with in month fourteen. What each has to cover, and where they go wrong.
What does a unit price actually have to cover?
Everything, unless the documents say otherwise: labor, material, equipment, supervision, your overhead and the profit on that scope, inside one number. A rate covering only direct cost reads as competitive on bid day and loses money on every change written against it afterwards.
What is the add-only trap?
Owners increasingly publish one rate governing both directions. Contractors used to bid a high add and a low deduct, assuming only additions would be used. Symmetric language ends that, and the rate you priced expecting to be paid on now decides what gets taken back.
Which unit prices turn up on commercial bid forms?
Five, over and over. Rock excavation by the cubic yard. Unsuitable soil removal and replacement by the cubic yard. Additional linear foot of underground pipe by size and depth. Additional door and frame installed complete. Additional linear foot of demising partition by height and rating.
Does the unit price have to agree with the base bid?
It has to be defensible next to it. A rock excavation rate four times what your base carries for common excavation invites the owner to ask which number to believe. Both are built from one set of crew rates and production figures, so they cannot contradict each other.
What if the quantity in the schedule is fictional?
Estimated quantities on a commercial form are the owner's guess, and you are pricing a rate rather than a total. Where the stated quantity is far off what the drawings show, the assumptions sheet says so with the measured figure beside it, before award rather than after.
When addendum four drops, 36 hours before bid
Addenda repricing on a commercial estimate is either a procedure or a panic. This is the procedure, run the same way whether the addendum moves a door schedule or the curtainwall.
Log it before you read it
Scope the delta, and requote if it is new scope
Requantify only what moved
Return it as a visible delta against the prior number
Reissue the markup and restate the exclusions
Put one commercial bid through and judge the package
Send the drawings, the bid form and the alternate list. One fixed price and one delivery date come back in writing, and nothing is billed until you approve that number.
Allowance, contingency, reserve, escalation, four lines nobody separates
These get blended into one comfortable number more often than any other part of a commercial estimate. An uninvited contingency loses a hard bid by two percent and nobody finds out why.
| Stated allowance | Undefined scope, inside the contract sum | Carried at the Division 01 amount | Carried, with the basis written out |
|---|---|---|---|
| Contractor's contingency | Your own money against your own risk | Left at zero unless you ask for it | Held inside the GMP and disclosed |
| Owner's contingency | The owner's money for the owner's changes | Does not belong in your bid at all | Sits outside the GMP |
| Owner's reserve | Money held off the construction sum entirely | Never yours, never in the number | Never inside the GMP |
| Escalation | Price movement between bid day and buying | To award, if you ask for it | To the midpoint of construction |
| Design contingency | Money for drawings that are not finished | Rare on a 100% CD set | Sized to how much is actually drawn |
Scope gaps at trade interfaces, named one by one
Each of these is scope two or three trades all have a rational reason to exclude. Every one is carried in the number or excluded in writing with the party named. None is assumed.
Hard bid, GMP or design build, and what changes in the file
The measurement barely changes across the three. What changes is who carries the cost risk, who reads the file after you submit it, and how much of it survives an audit.
Tenant improvement estimating services, shell condition and the work letter
Half the money in a tenant improvement is decided by two documents that are not drawings: the shell delivery condition and the landlord's work letter. Read either wrong and the estimate is wrong.
Tenant improvement build out cost estimate: what the shell hands you
Three shell conditions, three different starting lines on one floor plate.
Cold dark shell
BARESlab, structure, roof, envelope and a stubbed service. No HVAC distribution, no restrooms, no lighting, no fire alarm devices, sometimes no sprinkler drops. Everything from the main to the outlet is tenant cost.
Warm shell
PARTIALBase building HVAC to the space, sometimes with trunk distribution, electrical service and panel, code-required restrooms, a lit and sprinklered open floor. Tenant work starts at the branch.
Vanilla shell
FINISHEDFinished walls, ceiling grid and tile, lights, HVAC balanced, restrooms complete, a floor ready to take finish. The tenant buys finishes, casework, specialty MEP and signage.
The phrase is not the definition
Vanilla shell means what the lease exhibit says and nothing more. The estimate reads the exhibit and writes down what it assumed, because two landlords in one market define the same words differently.
The work letter, the base building and the occupied floor
Where landlord work stops, and what moves a TI number after it does.
Where landlord work stops
WORK LETTERThe work letter is the contract for the boundary: which side pays for demising walls, ceiling grid, sprinkler main modifications, the HVAC unit, the panel, and the restroom upgrade the code official will require anyway.
Base building capacity
UPGRADE COSTA tenant load exceeding what the panel, the VAV boxes or the main service can carry becomes a distribution or switchgear upgrade. A restaurant dropped into a shell sized for general office is how this bill appears.
The TI allowance is not the build-out cost
The landlord's allowance is a figure per rentable square foot in the lease. The build-out cost is what the drawings say. The estimate reports both and the gap, because that gap is the tenant's check.
Building standard and required vendors
LANDLORD RULESThe criteria manual can dictate door hardware, ceiling tile, light fixture, fire alarm vendor, controls contractor and sprinkler contractor. A required vendor is a sole-source price, and pricing it at market is how a TI estimate comes in light.
Working inside an occupied building
AFTER HOURSFreight elevator windows, demolition only after hours, protection of the suites next door, noise limits, material through a dock with a two-hour slot. Productivity factors, not line items.
Above the ceiling, with no as-builts
An existing suite with no record drawings is priced to what the set shows, with the unknowns above the ceiling written in as a named exposure. Your risk decision, not a number we quietly padded.
Send the bid form and we will read it before you spend anything
Two files that fit in an email: the bid form and the Division 01 table of contents. Back comes every row you will have to fill, the stated allowances, and the scope gaps the form leaves unassigned.
Sector cost drivers, restaurant, medical, hotel, retail, office
What the estimate has to carry in each of these, written as scope the documents force on you. None of it is a claim about projects delivered.
Restaurant construction cost estimating services
The kitchen is the job. The dining room is decoration priced on top of it.
The hood, and everything behind it
TYPE IA Type I hood brings grease duct with clearance or wrap to the roof, make-up air sized to the exhaust, an exhaust fan on a hinged curb, suppression tied into gas and power, and a rated shaft.
Below the slab and behind the wall
UNDER SLABGrease interceptor sizing, and whether it is an under-counter unit or an in-ground tank needing excavation and a traffic-rated lid. Floor sinks and drains at every draining appliance.
The OFCI split and the equipment list
WHO BUYS ITWalk-in boxes, cooking equipment, refrigeration, FF&E and OS&E split between owner-furnished and contractor-furnished differently on every job. The estimate states the split it assumed, item by item.
Medical office construction cost estimating
Infection control and life safety are line items here, not attitudes.
ICRA and interim life safety measures
CONTAINMENTInside a functioning facility the ICRA class drives negative-air containment, HEPA machines, anterooms, dedicated routes, daily logs and after-hours phasing. All Division 01 money, none of it on a floor plan.
The systems a clinic adds
SPECIALTYMedical gas piping with certification, lead-lined gypsum board, lead doors and view windows at imaging, and the structural support an imaging device needs before it arrives.
Hotel and hospitality construction estimating
One key priced correctly, multiplied by a count you can defend.
The repeat key and the mock-up room
REPETITIONThe guest room is taken off once per key type and multiplied, with the mock-up room priced as its own event because it gets built early and changed. Corridors and back of house do not scale with key count.
FF&E, OS&E and the PIP
PROCUREMENTWho procures, receives, warehouses and installs the case goods, soft goods and operating supplies differs under every brand. On a renovation the property improvement plan is the scope document.
Retail construction cost estimating
The landlord criteria manual outranks the architect on more items than you expect.
Criteria manual, storefront and signage
BRANDThe criteria manual sets the storefront system, the sign band and the finish level at the lease line. Storefront and curtainwall are not the same product, and a manual calling for one while the drawings show the other is a question.
Turnover date and liquidated damages
TIME IS MONEYRetail schedules run against a fixture date and a store opening, often with liquidated damages behind them. That turns overtime, shift premium and a second crew into a bid-day pricing decision.
Office building construction cost estimate
Finish tier and feeder capacity decide most of it before anybody counts a partition.
Finish level and partition type
CLASS AThe specified finish tier moves flooring, ceiling, millwork and glazing further than the floor plate does. Demountable partitions, glass fronts and acoustic ratings between offices each carry a wide price band.
Power, IT and low voltage rough-in
CAPACITYFeeder and panel capacity for a load the base building never anticipated, floor boxes and poke-throughs, cable tray, and the closet it terminates in. Owner-vendor low voltage still needs a pathway.
Mixed use development cost estimate
One address, two or three cost models, and a boundary to get right.
Where the two desks divide
SCOPE LINEWood-framed Type V and Type III multifamily, meaning garden, wrap, low and mid-rise, townhome, condo and build-to-rent, is priced on the residential desk, and concrete or steel podium, Type I and Type II and high-rise is priced on the commercial desk.
The shared systems argument
ALLOCATIONA podium has one structure, one set of vertical transportation and one fire protection system, with two or three uses paying for them. The estimate allocates that shared scope on a stated basis.
Half the money is decided on the code data sheet
On a commercial renovation the sheet that moves the number most is not a floor plan. It is the one carrying the construction type, the occupancy group and the compliance path.
IBC construction type sets the structure and the protection
Type I A through Type V B is not a label, it is a required fire-resistance rating on every structural element plus a ceiling on height and area. Moving from V B to III A means noncombustible exterior walls, a rated structural frame and rated floor and roof assemblies, none of which arrive as a new line on a floor plan.
A change of occupancy is the most expensive thing nobody drew
Turn a B occupancy into an A-2 restaurant and you can trigger sprinklers where there were none, a fire alarm upgrade, more plumbing fixtures, wider egress, a second exit and a rated corridor. None of it appears as a new wall on the demolition plan. It appears in the code analysis.
Path of travel on an alteration
An alteration to a primary function area brings an obligation to improve the accessible path of travel serving it: the route, the restrooms, the drinking fountains and the signage along the way, until that cost passes 20% of the alteration itself and stops being required. It is money spent outside the suite being renovated, which is why nobody carries it.
The compliance path moves envelope, glazing and lighting
IECC, ASHRAE 90.1, or Title 24 in California. Whichever governs, the path decides continuous insulation thickness, glazing performance and area, lighting power density and commissioning. Prescriptive and performance paths can produce two different curtainwall specifications on one building.
The value engineering log, and what counts as a saving
Value engineering is function-first analysis, not a discount conversation. Ideas go into a log with a number, description, first-cost delta, schedule impact, life-cycle effect, the discipline affected, a status and an approver. A VE idea is not a saving until the architect accepts it and the specification is revised.
Why commercial construction cost per square foot cannot be bid
On the same 20,000 square foot floor plate, a Class A office fit-out, a licensed clinic and a full-service restaurant are three different buildings' worth of money, and the code sheet moves each again. A dollar per square foot figure is an output of an estimate, never an input to one.
Escalation and long lead exposure, stated, not buried
Construction cost escalation and lead time are the two risks most commercial bids absorb silently into unit rates. Both belong on visible rows, with the basis for each written down.
Escalation is a method question before it is a number. Applied to award, it covers the weeks between bid day and a signed contract, which on an institutional job can be ninety days of a market moving underneath you. Applied to the midpoint of construction, it covers the whole program and is the honest basis on a long build. The estimate says which one it used and at what rate.
This firm publishes no cost index and sells no market view. Where an index or a published range is cited on your assumptions sheet, it is named, attributed to its publisher and dated, with the date it was reviewed beside it. That is a smaller claim than the ones you will read elsewhere, and the only kind an owner's cost consultant can check.
Long lead is the other half. Switchgear and distribution gear, structural steel, curtainwall and large packaged HVAC equipment are the items flagged by default. Which of them actually bites on your job is settled by a supplier quote with a date on it, not by our reading of the market. The estimate does not guess a delivery date. It records the exposure: which items are long lead, what the assumption is, and what happens if that assumption turns out wrong.
Absorbing a lead-time risk into a unit rate is the failure mode. It makes the row look expensive to a reviewer, hides the real problem from the person building the job, and disappears entirely if the owner takes an alternate that removes the item. A stated exposure survives all three, and hands you something to negotiate with.
What this is not, and where your team still owns the bid
Six questions a twenty-year chief estimator would put to us on the phone, answered before you have to ask. This sits above the pricing block on purpose, because a commercial estimating company that will not draw its own edge is not worth pricing.
Do you know my subcontractor market?
No, and anybody claiming otherwise from a remote desk is selling you something. We hold no relationships with your local subs and do not know who is hungry this quarter. What happens instead: RSMeans and the National Construction Estimator set the baseline, you tell us union or open shop, and your own labor rates and historical unit costs replace that baseline the moment you send them.
Could you be estimating for my competitor on the same job?
Possibly, and on an open public bid you should assume it. An NDA is signed on request before you send a sheet, your drawings, pricing, bid dates and client names stay private, and no package is shown as a sample without the project stripped out. If exclusivity matters, ask before you upload.
Will you run bid day for me?
No. A commercial construction estimator here builds the number and nothing else. We do not solicit subcontractor bids, we do not level them, we do not chase coverage on a thin trade at 2pm, and we do not sign your bid form. Soliciting, leveling and coverage are outsourced bid management, a separate order. Bid day itself stays yours.
What does the 3-5% variance band actually mean?
It is the typical spread between the priced estimate and actual cost, measured against the scope the assumptions sheet defined, on the drawings you supplied, with the written exclusions held. It is not a guarantee, and it does not survive scope added later or an exclusion nobody read.
Is 24-96 hours credible on a commercial set?
On a small fit-out, yes. On a 300 to 800 sheet CD set with a full project manual you are at the top of that band, and the fixed quote states the delivery date before anything is billed, so you learn it at the quote rather than on your bid date. If the date cannot be met, that gets said then.
Who should not order this?
A contractor bidding one commercial job a quarter who already pays an estimator with idle weeks in the calendar. Paying twice for the same hour is worse than being slow. Same answer if the set is so thin that what comes back is an allowance sheet with a number stapled to it. What you give up here is the person who has walked that market for fifteen years, and the contractors this works best for keep that person and stop making them measure.
Three or more commercial bids a month runs on a retainer
The monthly partnership takes a priority queue, revisions on unchanged scope unlimited, and every addendum repriced inside the retainer. A dedicated estimator works your queue 8 hours a day, 5 days a week.
From estimate to buyout, cost codes and the schedule of values
The estimate does not stop being useful on bid day. It becomes the baseline every change order gets measured against, so it is built to survive the handoff into your accounting system.
Cost-code mapping into your system
The estimate restructured as a schedule of values
The bid-day recap
The buyout log read against the estimate
The baseline every change order is measured from
Before you send the bid form
What commercial contractors ask in the week before a bid date.
The basics
Money and accuracy
Delivery method
Working with us
Send the drawings and the bid form,
get a fixed quote back
Name your bid date, the alternates and unit price rows on the form, and the trades you want carried. An estimator reads the bid form before the drawings, prices to it, and sends one figure and one delivery date back in writing before anything is billed. The first package either arrives in your form's line order or it does not, which is the only test worth running.