Weaving Workshop RSVP Website: Warp Counts, a Loom Cap, and a Shuttle Line
A weaving workshop RSVP has to lock a warp and a loom before the yarn is wound, because a maybe does not hold a warp.

A weaving workshop breaks when the studio has six looms and twelve people arrive expecting a bench, or when the warp was wound for eight weavers and three of those names were still a maybe on Friday. Warp yarn, the loom each person sits at, and the shuttle you set in the race are ready before anyone throws the first pick. The host does not dress a seventh loom because a neighbor decided to weave after the sheet closed. This is a loom, with a warp and a weft, not a macrame cord and not a knotting frame. A maybe does not hold a warp.
You can create a weaving workshop RSVP that fills the looms you will actually dress, records who is weaving and who is only watching, and stops when those looms are full.
Count the weavers the looms can hold
Walk the studio before you send the link. Write down how many floor looms or table looms are dressed for this class, whether each one has a bench, and whether a loom in the corner is a demonstration piece no one may sit. If you can run six looms for a four-hour block, one weaver per loom, that number is your cap.
A loom is one warp, one weaver, and one shuttle, not one friend who likes yarn. Ask whether a guest who will not weave can stand at the back, and whether that person still counts toward the number the studio allows in the room. Pick one rule and write it on the page. Watchers stay off the bench. They do not claim a seventh warp.
Ask the last time you can change the loom list without wasting a wound warp. If you beam the warp on Wednesday for a Saturday class, that Wednesday is your lock. Write the finish too: one warp, one loom window, packed out by the time on the studio booking. A second sitting "if a loom frees up" is not a plan.
Set a capacity limit on weaving benches, not on everyone who was invited to look. When the last loom is taken, the form should say the workshop is full. If the warp is already wound, a late weaver is not at these looms.
The shuttle line is one warp, not a knot
Name the yarn and the loom you will teach and stop there. A clear line is the warp you wound, a weft on a boat shuttle or stick shuttle, and a loom with heddles already threaded. Macrame cord, a knotting board, and a frame that only holds fringe are a different class with a different table.
Put arrival on the form as the window the studio door will actually be open. If looms are reserved from 9:00 to 1:00 and threading checks start at 8:45, that is the line. People who want to stroll in at 9:30 will miss the first picks and still expect a dressed loom. You need a yes to this warp, this loom, and this shuttle before you wind the yarn.
A bench at the loom, and who came with them
Workshops go wrong when one yes hides a second pair of hands. One weaver who brings a friend is one warp and two bodies, not two looms. Ask for each weaver's name, whether they have used this loom before, and how many people will be in the studio with them. A friend who is only watching does not get a warp.
Track plus ones separately so a guest who wants to weave is a second loom, and a guest who only wants to watch is not. Collect seating preferences so a weaver who needs the end bench, or a table loom instead of treadles, is not assigned the floor loom against the wall. Write what happens if someone is later than the threading check: the warp goes to a standby weaver who is already in the room, or it stays on the loom and the late guest waits for the next class.
The moment the warp is locked
The meeting point is the studio door you named, not "the arts building" with no room number. Put your phone on the page. A message in the group chat is not a loom assignment. You match names to warps.
Tie the deadline to the beaming day, the day the warp count cannot change. After that, a late yes is a call about a cancellation, not a promise of another loom. If you want names ready when a bench drops, keep them as standbys and tell them they do not have a loom until you write back. A maybe does not hold a warp.
Export the list the morning you lock: attending or not, loom type, bench preference, party size in the studio, and phone. A weaving RSVP is finished when every loom has a named weaver, the warp matches what you wound, and a late arrival knows whether they are throwing a shuttle or turning around.