How to Charge for Finish Selections: What Designers Actually Earn

A contractor reaches out. He needs someone to pick finishes for a project. You’re new, you want the work, and you say yes. Then you sit down at your desk and realize you have no idea what to charge.

Welcome to one of the quieter profit traps in residential design. Finish selection work for contractors sounds simple on the surface, and it can be. But the word “finishes” contains multitudes. Are you selecting tile for three bathrooms and calling it done, or are you producing a comprehensive material schedule, attending field meetings, managing substitutions when something goes on backorder, and fielding questions from the GC’s sub three weeks into framing? The answer to that question determines your fee model. Commit to a price before you know the answer, and you will almost certainly leave money on the table.

Interior Design Community put this exact scenario to the community, and the response was practical and detailed, the kind of real-world guidance that only comes from designers who have done this work and made the early mistakes. Whether you’re stepping into contractor-facing work for the first time or refining an inconsistent model, here’s how working designers actually structure this service and what they earn.

What “Finish Selections” Actually Includes

Before you name a number, you need to understand what you’re selling. Finish selection work for contractors runs a wider spectrum than most new designers realize.

At the simpler end: the contractor wants tile, stone, plumbing fixtures, and hardware specified with sourcing details. There is no homeowner involved. The deliverable is a clean package he hands to his trades. If you can work uninterrupted and you have efficient sourcing processes, this is a defined, manageable scope.

At the other end, you are producing a full materials schedule with options, building sample boards, coordinating with vendors on lead times and availability, managing substitutions when items are discontinued, attending construction meetings, and responding to questions from the GC’s subs throughout the project. There may also be a homeowner who has opinions and needs to approve every selection before anything is ordered.

These are not the same service. Pricing them identically is one of the most common and most costly early mistakes in contractor-facing design work.

Before you send a proposal, ask the contractor directly what he expects as the deliverable. Get specific. What rooms and categories are included? What does the final document look like? Will a homeowner be involved in selections, and who has final approval? What happens if something you specify gets discontinued? Are you expected to attend any site meetings or coordination calls? Will you interact with the GC’s subcontractors?

Every yes to those last questions adds hours to the scope. You need the answers before you price it.

For a closer look at why vague language in deliverables actually causes these scope disputes, see The Deliverables Problem: Why This One Word Is Costing Designers Thousands.

The Honest Case for Starting With Hourly

For a designer who has not done a finish selection package before, hourly is not a crutch. It is the most professionally honest decision you can make.

Flat fees and per-square-foot rates are calculated from data: hours logged on similar work, scope complexity, efficiency built from repetition. When you don’t have that data yet, you are guessing. Most new designers, left to guess, underestimate the time required by a meaningful amount.

“If you’re not sure how long this will take you then I would definitely charge by the hour. That way you’re not losing money. Once you do enough of them, then you’ll be able to start charging a flat fee or by the square foot and make sure you’re making a profit.”

— @m.i.n.t_interior_design

An hourly rate on unfamiliar work is how you learn what it actually costs to do this well. And what you learn on project one becomes the foundation for every flat fee you write after that.

The practical concern with hourly is that it creates open-ended cost exposure for the contractor. You can address that by giving him an estimate range upfront and building in a checkpoint if the scope expands. Something like: “Based on what you’ve described, I estimate this will take 12 to 15 hours at my rate of $[X] per hour. If we approach 15 hours, I’ll contact you before continuing.” That is a professional framing that respects his budget and protects your time.

Use a simple letter agreement or service contract, set your rate, and track every hour. When the project is complete, review the total. That number is the most valuable data point you have for pricing the next one.

How to Build a Flat Fee Before You Have the Data

Once you have done several of these packages, or if you are willing to build a flat fee from first principles on the first one, there is a methodical path to a number you can stand behind.

“Make a detailed itemized shopping list of every single selection you’ll need to make with quantities, calculate the amount of hours it will take you to make those (including showrooms trips and travel time), add a buffer percentage, multiply that by your hourly and charge a flat fee. Include the itemized list in your contract and state any extra items will be charged hourly.”

— @seanmcarter

This is exactly how a flat fee gets built correctly. You do not start with a number. You start with a list.

What is being selected? How many items? What does sourcing look like for each category, standard in-stock items or custom specifications that require showroom visits and trade ordering? How much time does it take to produce the deliverable document? Is there a presentation format the contractor expects?

Work through each item, assign a time estimate, and add a 10 to 15 percent buffer for the things you cannot fully anticipate. Multiply by your hourly rate. That is your flat fee.

Then put the itemized selection list inside your contract. State clearly that any item not on that list is out of scope, and define the cost of out-of-scope requests. This is the step that separates a profitable flat fee engagement from one that quietly bleeds hours. When the scope is written into the contract, any scope creep must be negotiated. When it is not, the contractor simply keeps adding things, and you keep saying yes because the relationship feels new and fragile.

For a full walkthrough on building and writing a flat-fee scope clients actually understand, see Defining Your Flat Fee Scope: So Clients Actually Understand It.

Per Square Foot: What the Numbers Actually Look Like

Per-square-foot pricing is the most scalable model for finish selection work once you have established a consistent workflow and know roughly how long this work takes you per square foot. The challenge for new designers is that the rate only works as a reliable number if you have enough projects behind you to know what it represents in real hours.

For designers with that data, the community thread offers a useful benchmark.

“If it’s a new build and we are selecting everything down to the toilet levers, we charge anywhere from $7-$10/sq ft with another flat project management fee added because inevitable we will get roped into conversations and meetings if a sub needs direction, something is discontinued at the last second etc. Selecting finishes for a contractor takes a huge load off them because it takes so much time, skill and admin detail to select and present all finishes in a professional way.”

— @kandrackole

Note the structure: a per-square-foot rate plus a project management fee. This matters. The per-square-foot rate covers the selection work itself, the sourcing, the specifications, the deliverable. The project management fee covers everything that happens after the package is delivered: the coordination calls, the field questions, the substitutions when something goes on backorder, the moments when a sub needs direction, and the only person available is you.

If you price per square foot without a PM fee, you are pricing the selection work and giving away the coordination work. On a complex new build, the coordination work is often where most of the post-delivery hours live.

If you are going to use a per-square-foot rate, define what the rate includes in your contract, specify what triggers the PM fee, and establish a clear process for handling discontinued items and out-of-scope requests.

What a Real-World Finish Package Earns

Sometimes the most useful information is a specific, concrete number, not a formula or a rate range, but a real example from a designer who has done this work repeatedly with the same builder.

“It depends on the size size and scope of the project. I frequently work with a local builder and can do this pretty quickly for him because I know exactly what he’s looking for. I typically charge him $1,000 for a finish package that includes tile, stone, plumbing, and hardware. If I’m uninterrupted and don’t have to deal with their client, I can get it done in 8 hours. I have go-to specs for the plumbing depending on the style of the house. I’ll always select tile and stone based on the project. We have a very good relationship so he knows that what I do is a good value and I can get it done really quickly. For me it’s an easy $1k.”

— @hollydennisandcompany

There are several things worth unpacking here. First: $1,000 for eight hours is $125 per hour. For a new designer considering a flat fee for a similar scope, that is a useful reference point, but only if your scope is equally well-defined and your workflow is equally efficient. A new designer doing the same work for the first time should realistically expect a minimum of 12 to 16 hours, sometimes more.

Second, this fee applies under very specific conditions. The scope is tight (tile, stone, plumbing, hardware, no client interaction). The designer has a deep relationship with this builder and knows his preferences. She has go-to specifications she can move quickly on. She works uninterrupted. Remove any one of those conditions and the math changes.

Third: the relationship itself is a form of efficiency. A repeat client who trusts your judgment eliminates the approval friction, the back-and-forth, and the second-guessing that slow down first-time engagements. Your first project with a new contractor will take longer than your fifth. Price it accordingly.

Defining Scope in the Contract Before You Lose the Hours

One of the cleanest models in the community thread is also one of the simplest: a flat fee for a clearly defined scope, and hourly for anything that falls outside it.

“I charged a flat fee for very clearly defined scope by room, plus hourly for anything out of scope.”

— @fromgoodtograce

This structure works because it is honest in both directions. The contractor gets a predictable number for a predictable deliverable. You get a protected revenue stream if the scope expands. And the conversation about what is in scope happens at the start of the project, when it should, rather than at the end when the invoice lands.

What does “clearly defined scope by room” look like in practice? A list of exactly what is being selected, broken down by room and category. Not “tile selection” but “floor tile, wall tile, shower floor, and decorative accent for master bath and two secondary baths.” Not “plumbing” but “faucets, shower fixtures, and tub filler for each bathroom per style category specified.” The more granular, the better. Specificity removes ambiguity, and ambiguity is where scope creep lives.

The out-of-scope clause is just as important as the scope itself. If the contractor asks you to come by the site after the package is delivered to review something in person, that is out of scope. If a tile selection is rejected by the homeowner and you have to re-source it, define how that will be handled and at what rate. Put those answers in writing before you start. When the scope is clearly defined in the contract, additional requests must be negotiated. When it is not, they just become part of the job.

One More Thing Before You Say Yes to the Contractor

The pricing question is real. But there is a bigger question underneath it worth sitting with before you agree to anything: what role will you play in this project, and are the terms ones you actually want?

“We don’t bill hourly — it’s simply not a fair model for the client or the designer. Instead, we charge either a percentage of the total project cost or a flat fee, split into three scheduled payments.

One more advantage: vendors typically offer designer discounts, and that discount belongs to you. If you negotiate a good deal, you have room to mark up and still save the client money.

My advice: don’t work under a GC. The moment you do, you’re effectively an employee in their company, playing by their rules. Set your own terms instead.”

— @bashar.sg

The first point about trade discounts is one new designers sometimes miss entirely. If you are sourcing products through your trade accounts for this project, the designer discount on those products is part of your compensation structure, whether or not you are marking them up. That discount is earned through your professional standing and your trade relationships. It does not automatically transfer to the contractor simply because he hired you. Understand how your trade accounts work, and be clear in your contract about whether and how markups apply.

The second point is worth naming even if it is not the path every designer takes. Working with a contractor is a legitimate and valuable relationship, and for a new designer building a client base and developing efficiency, it can be a real asset. But working under a GC, on his terms, with his timelines, and under his invoicing structure is a different arrangement. You can work directly with a builder, on your own letterhead, with your own contract, on the terms you set. The contractor is hiring your expertise. That expertise has its own professional standing.

How you structure the relationship is up to you. But name it clearly before the project starts.

For more on setting clear roles, money, and risk terms before you team up with a contractor, see Designer + GC Partnership: Roles, Money, and Risk Before You Team Up.

Before You Quote the Next One

If you are a new designer stepping into finish selection work for the first time, the simplest path forward is also the most professional one.

Get the scope in writing before you price it. Ask the contractor exactly what he wants: which rooms, which categories, what the final deliverable will look like, and whether a homeowner is involved in approvals. That conversation alone will tell you whether this is an eight-hour package or a thirty-hour project, and whether your fee should reflect the simpler or the more complex end of the spectrum.

If the scope is clear and you’re willing to build from first principles, use the itemized list method to calculate your flat fee. Add a buffer. Write a contract that names every item in the scope and establishes what happens outside it. Set payment terms upfront.

If the scope is fuzzy, or the relationship is new, or you simply don’t have enough history with this kind of work to trust a flat fee, start hourly. Set a range estimate. Track every hour you spend. When the project wraps, you will have real data for the next proposal.

Either way, the contract comes first. The work starts after it’s signed.

The designers who build profitable contractor relationships do it through consistency, scope discipline, and fee structures that reflect what the work actually costs. That foundation is built on the first project, not after you’ve undercharged your way through several.

Educational content, not legal advice.