How to Read a Trim Carpenter's Bid (What's Included, What's Missing, What Should Cost More)

Why trim bids are so frequently incomplete

Trim carpentry is harder to estimate accurately than most other trades. Linear footage varies room by room. Material costs vary by species. Labor varies by complexity (a simple flat baseboard takes a third the labor of a built-up traditional crown). Most trim carpenters write bids quickly, omit detail, and rely on change orders to capture additional scope.

This is fine when the carpenter is honest and the homeowner is sophisticated. It is a disaster when either party is not.

What a complete trim bid should include

1. Scope of work — by room

Not a single line item. Not "trim entire house." A bid should include a room-by-room breakdown listing exactly what trim is being installed in each room. For example:

• Master bedroom: 7-inch baseboard (140 LF), 3-1/2 inch casing around 1 door and 2 windows
• Master bathroom: 5-inch baseboard (90 LF), 2-1/2 inch casing around 1 door and 1 window, 36-inch beadboard wainscot (60 LF)
• Dining room: 5-inch baseboard (60 LF), 5-inch built-up crown (60 LF), full-height raised panel wainscot (60 LF), 3-1/2 inch casing around 2 doors

If you can't tell from the bid exactly what's being installed where, you cannot compare it to another bid, and you cannot hold the carpenter accountable to a specific scope.

2. Material specifications

For each trim element:

• Species or material (e.g., "MDF primed" or "poplar paint-grade")
• Profile name or supplier code
• Whether the carpenter is supplying the material or the homeowner is

A bid that says "trim materials" without specifying species or profile is a bid that can be downgraded later. If the bid is comparing two carpenters and one says "MDF" and the other says "poplar," the price difference is real but the material is meaningfully different.

3. Linear footage

Total linear footage of each trim type. This lets you compute the per-foot cost — the single most useful metric for comparing bids:

• Paint-grade baseboard installation: $8-15/LF labor + material is typical
• Stain-grade hardwood baseboard: $20-40/LF
• Built-up crown molding: $18-30/LF (paint-grade)
• Raised panel wainscoting: $40-90/LF (depending on complexity)
• Casing around standard door: $80-150 per opening

These are ballpark figures and vary significantly by region. But if a bid is more than 30% below these ranges, the bidder is either underpricing (and will be tempted to cut corners) or omitting material costs that will become change orders.

4. Joint methodology

This is rare in residential bids but critical. The bid should state:

• "All inside corners coped"
• "Outside corners mitered, glued, and pin-nailed"
• "Baseboards scribed to floor irregularities"

If the bid is silent on these methods, the carpenter is leaving themselves room to cut corners. Ask explicitly: "How are you handling inside corners?" If the answer is "I miter them," it's a sign of inexperience or willingness to cut corners.

5. Finishing responsibilities

Who fills nail holes? Who caulks? Who sands? Who paints?

The most common cost overrun is the homeowner discovering that the trim carpenter doesn't fill nail holes — and the painter doesn't either. Both blame the other, and the homeowner pays for a third party to do it.

The bid should explicitly state which finishing tasks are included.

6. Exclusions

What is the carpenter NOT doing? Common exclusions:

• Door installation (the door itself, vs. just the casing around it)
• Stair work
• Cabinet trim or built-ins
• Caulking and painting
• Removal of existing trim (in renovations)
• Drywall repair after demolition

If exclusions aren't listed, they will be discovered mid-project as change orders. Ask the carpenter to list exclusions explicitly.

7. Payment schedule

A reasonable payment schedule for trim work:

• 30-40% deposit at material order
• 30-40% mid-project at substantial install
• 20-40% balance on completion

Be skeptical of any carpenter who demands more than 50% upfront. Be skeptical of any "all due on completion" arrangement that doesn't include a material deposit — this typically means the carpenter is going to use your job to fund someone else's material.

Red flags in a trim bid

• Lump sum with no breakdown. "Whole house trim: $14,000." Untrackable, unverifiable, designed to obscure scope.
• Per-square-foot pricing. Trim cost has nothing to do with square footage. It correlates to linear footage. A square-foot bidder is using shorthand that hides real numbers.
• No material specification. Leaves the bidder room to substitute cheaper materials mid-project.
• No timeline. Trim is the bottleneck on most finishes. If the carpenter can't commit to a start and finish date, they're juggling more jobs than they should.
• Refusal to put it in writing. Trust nothing verbal.

What "should cost more" than it usually does

Bids frequently underprice these items, often because the carpenter doesn't account for them properly:

• Built-up crown molding. 2-3x the cost of single-profile crown. Many bids miss this.
• Stairs. Treads, risers, skirts, balusters, and handrails are a major scope. Should be its own line item.
• Coffered ceilings. Massive material and labor. Often vastly underestimated.
• Wainscoting on out-of-square walls. Adds 50-80% labor in older homes. Generally not factored in.
• Tear-out of existing trim. Easily 30% of new-install labor. Almost always omitted from bids.

How to compare two bids

1. Verify scope match. If Bidder A includes the dining room crown and Bidder B excludes it, you're not comparing the same job.
2. Compute per-LF cost. Divide total bid by total linear footage. If Bidder A is at $9/LF and Bidder B is at $14/LF, ask the question: is Bidder B doing meaningfully better work, or is Bidder A planning to cut corners?
3. Match material specs. A bid using MDF will always beat a bid using hardwood. Make sure you're comparing equivalent materials.
4. Check exclusions. Often the bid that looks 20% cheaper is just excluding 30% of the scope.
5. Talk to references. The bidder who can give you three references on similar projects from the last 12 months is meaningfully different from the bidder who can't.

Bottom line

The cheapest trim bid is almost never actually the cheapest. The bids that look 15-25% lower than competitors are almost always missing scope that will be added back via change orders — by the time the project is done, the "cheap" bid usually costs more than the "expensive" one.

If you've received bids and aren't sure how to compare them, the Discovery Call is built for this — Nicholas reads your bids line by line and tells you exactly what's missing, what's overpriced, and what red flags to watch for.