What an Interior Designer Should Send for a 3D Rendering
Quick answer: An interior designer should send a dimensioned plan and ceiling plan, room photos, a specification schedule with manufacturers and codes, annotated mood images, lighting intent, and camera positions.
What an interior designer needs from a rendering
An interior designer sells a vision before anything is bought. A rendering lets the client walk through a room that does not exist yet, judge the palette, the layout and the lighting and approve purchases with confidence. To make that image accurate, the studio needs the room, the selections and the mood. It is rare that a designer lacks any of these, but they are rarely gathered in one package. This guide shows how to gather them so that the first preview is close.
It is written for residential and commercial interior designers, kitchen and bath designers and stagers who commission renderings from a studio, or who use a studio to extend their own capacity.
Send the room first: plans, sections and dimensions
- Floor plan of the space with wall dimensions.
- Ceiling height and any variations: soffits, coffers, beams, slopes.
- Window and door sizes, sill heights and casing details.
- Reflected ceiling plan with lighting locations.
- Interior elevations of walls with built-ins, tile or paneling.
- Photos of the existing room, if it is a remodel.
If you have a CAD or Revit file, send it. If you have a hand-measured sketch, send that with the photos. What matters is that dimensions are reliable and that features that shape the room, such as a column or a slanted wall, are recorded.
Send the selections: the heart of the package
A designer's selections are the content of the image. Send a specification schedule that lists furniture, lighting, fabrics, wallcoverings, paint, flooring, tile, stone, hardware and plumbing fixtures. For each, give the manufacturer, model or pattern name, size, color code and a photo or link. See sending a furniture and fixture list for how to format it. Where you have samples, photograph them in daylight next to a white card.
If certain pieces are only concepts, mark them as such. The studio can place stand-ins that match the style and proportions, then swap them when you decide.
Mood boards and how to use them
A mood board tells the studio the feeling you are chasing. It should be short and annotated. Choose three to six images and, for each, write what to take from it: the palette, the texture, the lighting or the composition. Do not send a board of forty images without notes, because a studio will average them and produce something bland. Say also what to avoid. If the client dislikes a color or a style, that constraint is as helpful as the inspiration.
Lighting: day, night and fixtures
Lighting design is a large part of the mood. Tell the studio the time of day, the color temperature of the lamps, the way each fixture is used and which lights are on. A living room at dusk with lamps and sconces lit feels different from the same room at noon with blinds open. If you have a lighting plan or a fixture schedule, send it. If not, describe the intent: "warm and layered, with lamps and picture lights and no overhead glare".
Views and camera choices
Designers know the best angle of a room. Mark it on the plan or send a photo of the position. Describe the focal point: the fireplace, the island, the bed wall. Interior views often use a wider lens than exterior views, and you may want two or three angles per room, including a close view of a vignette. Tell the studio if the images will be used in a presentation deck, on a web portfolio or in print, since the framing and the size differ.
Options and revisions in a design presentation
Designers often present options to clients: two sofa styles, three paint colors, or two tile patterns. Tell the studio up front how many options each view must show. It is cheaper to build option switching into the model than to redo the view later. Agree how revisions are counted. A change of color is a small task; a change of layout is a large one. The quote should reflect that difference.
Working for commercial clients
Commercial interiors, such as restaurants, offices, clinics and retail, have special needs: brand colors, signage, seating counts, code clearances and product placement. Send the brand guidelines, the plan with furniture counts, and the signage and graphics files. See what to send for a commercial interior. Remember that using brand logos in a published image may need permission from the brand owner.
Common designer mistakes
- Mood board without notes. The studio guesses what to take from it.
- No dimensions. Furniture scale is wrong.
- Selections in scattered emails. Items are missed.
- Late substitutions. A product is replaced after modeling.
- No lighting information. The mood cannot be set.
- Not saying what is final. Everything is treated as decided.
Budget, procurement and how the image ties to the order
Designers who sell furnishings package by package benefit from an image that maps to the purchase order. Number each item in the specification and ask the studio to keep those numbers in a companion key, so the client can point at the sofa in the image and see item 07 on the list. This reduces confusion at approval and speeds ordering. If an item goes out of stock, the substitution can be tracked against the same number and the image updated. It is a small habit that pays off on every project.
Tell the studio the budget level as well. A luxury project and a value project call for different fixture and finish choices when the studio proposes placeholders, and stand-ins that look too expensive or too cheap mislead the client.
Sharing files securely and keeping the client out of the loop until ready
Designers usually control what the client sees and when. Tell the studio if previews should go only to you, and whether they should be watermarked. Use a shared folder with a clear naming system, such as project, room, version and date. Agree on how revision comments are sent: markups on the image, a numbered list or a short call. The clearer the process, the fewer misunderstandings and the faster the final.
Kitchens and baths: the exact-detail rooms
Kitchens and bathrooms are where a designer's precision shows. Cabinet door profiles, panel reveals, counter edges, backsplash patterns, grout color, faucet finishes and hardware are all visible in an image. Send the cabinet elevations with dimensions, the door style name or a photo, the countertop and backsplash selections and the exact plumbing and appliance models. The studio models each one. If you use a semi-custom cabinet line, send the catalog page. If the kitchen has an unusual layout, a mark-up of the plan showing the work triangle and the traffic path helps the studio choose a camera that tells the story of the room.
For baths, add the tile layout: tile size, pattern, grout width, and where the niche and the bench go. Mosaic and large-format tile look different in an image, and the layout affects the impression of space.
Fabrics, patterns and how scale changes the mood
A floral, a stripe or a geometric pattern has a scale, and the scale drives the look. Photograph or scan the swatch next to a ruler, and give the repeat size when the manufacturer publishes it. A studio will reproduce the pattern at the correct scale on the upholstery, the curtains or the wallcovering. If you are working with a custom print or an artwork, send the high-resolution file and the intended size on the wall. Without scale, a pattern that looks delicate on a sample can appear loud on a whole wall.
Staging, styling and the finishing layer
Designers often want the final image to have the finishing layer that makes a room look lived in: books, branches in a vase, folded towels, a tray with a candle. Say how much styling you want and who supplies it. The studio can use its own library for standard items and can model specific pieces you own. If you plan to photograph the room after installation, the rendering and the photo should match, so tell the studio which accessories you have ordered. Otherwise the styling in the image and the styling in the finished room will not agree.
Using renderings to sell the design and to protect the scope
A rendering is also a scope document. When a client approves an image, they approve what it shows: the layout, the finishes and the mood. If the image shows a marble that is later replaced by a quartz, the client may object. Keep the approved image with the specification list. If a change is made, update both and have the client confirm it. Designers who do this rarely face disputes about what was promised. Ask the studio to label each image with a version number and date, so the approval trail is clear.
A worked example: a primary suite
A designer is working on a primary suite. She sends a floor plan with dimensions, a reflected ceiling plan, four photos of the room, a specification sheet with twenty-two items, three annotated mood images and a note: "Warm, quiet, layered. Evening view with lamps lit. Two headboard options." The studio builds the room, places the specified furniture, applies the fabrics from her swatch photos and renders one wide view with both headboards.
The client picks the second headboard in the meeting. The designer places the order, and the delivered room looks like the image, because the image came from the same specification.
A checklist for interior designers
- Plan, ceiling plan, elevations and dimensions.
- Photos of the existing room.
- Specification schedule with manufacturers and codes.
- Annotated mood images, and what to avoid.
- Lighting intent and time of day.
- Camera positions and number of options.
Questions a designer should ask a studio
- Do you use manufacturer 3D files for furniture and fixtures?
- How do you handle custom or upholstered pieces?
- How many options can one view show?
- How quickly can you swap a product after approval?
- Can you deliver layered files for my presentation?
Frequently asked questions
What is the minimum a designer should send?
A dimensioned plan, photos, a specification list and a short mood description.
Can you use my fabric swatches?
Yes, from photos taken in daylight, or from manufacturer pattern files.
How many options can a view show?
Several. Tell us at the start so we build switching into the model.
Can you show the room at different times of day?
Yes, from the same model.
How do I brief you on mood?
Three to six annotated images and one line on what to avoid.
What if a product is not final?
Mark it as a placeholder. We use a similar piece and swap later.
Do you handle commercial brand guidelines?
Yes, if you send them. Brand assets require permission for publication.
Can I get layered files?
Yes, on request.
Related guides
This guide is part of our series on what to send a 3D rendering studio. Start with the overview, what to send a 3D rendering studio. Related: what a real estate agent should send, what a developer should send, what a restaurant or retail owner should send. When you are ready, send what you have through our quote request.