Mosaic Class RSVP Website: Bench Seats, Tile Kits, and a Grout Line
A mosaic class RSVP has to lock a bench and a tile kit before the studio portions trays, because a maybe does not hold a kit.

A mosaic class breaks when the studio set eight benches and twelve people expect a kit, or when the tile trays were portioned for a counted list and two more people want to sit down. Benches, kits, and whether this class grouts before you leave are set before the instructor lays out the tiles. The studio does not cut another sheet of tile because a friend decided to come after the trays were built. A maybe does not hold a kit.
You can create a mosaic class RSVP that fills the benches the studio can staff, caps each kit at the tiles they pulled, and records who will grout in the room and who will take a piece home.
Ask what this class can build
Call the studio before you send the link. Write down how many benches they set, what each person makes, how many tiles are in a kit, which colors they actually stocked, how long the session runs, and whether the piece leaves finished or still needs grout. Those numbers are your cap. Do not guess from a photo of a finished tray.
A bench is one person, one kit, and a share of the nippers. A friend who wants to watch does not take a bench, and a friend who will make a piece does. Ask whether the studio charges per maker, and the last time you can change the headcount without paying for tile that was already portioned. If they charge for a no-show after that time, print that rule on the page.
If one class offers a coaster set and a small frame, cap each option at the kits on the shelf. A blue tile mix measured for four people is gone at four even if empty benches remain. If the studio will not split a kit between two people, say that one bench is one person. Set a capacity limit on people who will make a piece. When the last bench is taken, the form should say the class is full.
Grout, nippers, and a bench someone can use
Grouting in the room and taking a piece home are different endings. If this session grouts, it needs the extra minutes, clothes that can take thinset and grout, and a seat until the instructor says the piece can move. If the piece must cure on their shelf, name the pickup window and who may pick it up. Cap take-home grout tubs at the number the studio will send out the door. A preference to grout at home should not be on the form if they will not give you the materials.
Nippers are shared and sharp. Ask how many pairs the instructor will put on the table. That number can be lower than the bench count, which means people take turns and the class does not go faster because you added a guest. Ask the age rule and whether they require glasses you already wear or eye protection they lend. Cap loaner glasses at the number they own.
Ask about access needs the studio can meet: a bench they can use while seated, a station on the main floor if the room has a step, or a seat near the rinse bucket if one exists. If every bench is a tall stool with no chair, say that. A preference the room cannot meet should not be on the form. Tile dust and a strong grout smell belong on the page so someone who cannot be in that room does not take a kit.
A guest does not share a kit
If you allow a guest, track that plus-one separately. They need their own bench, their own kit choice under the cap, and their own answer about grout in class or pickup later. One form that hides an extra maker will put ten people on eight trays. Say that a yes is one maker. Someone who arrives after the nipper briefing misses which tools are shared and which bucket is rinse water. If everyone must be there at one start time, say that time and say a late maker does not get a second kit pulled from stock. Put the number of minutes after start when a bench is released.
The minute the tiles are portioned
The meeting point is the studio door, with the suite number if there is one. Put the start time and the end time on the page. Say what people must bring only if the studio named it, such as an apron or closed-toe shoes. Do not send people out to buy tile you already put in the kit.
Tie your RSVP deadline to the studio's pull for tile, adhesive, and grout. After that, a late yes is a call about a cancellation, not a promise of another tray. If you want names ready when someone drops, keep them as standbys and tell them they do not have a bench until you write back. A maybe does not hold a kit.
Export the list the day you lock: attending or not, kit choice, grout in class or pickup window, access note the studio agreed to, guest name if any, and phone. A mosaic class RSVP is finished when every bench has one maker, every kit matches a tray the studio pulled, and the instructor can start without rebuilding your list at the table.