A menu cover is a simple object with four decisions in it, and three of them are usually made by whoever is filling in the order form.
Start with the insert, not the size
Send the actual sheet. Letter is not A4 and a trimmed sheet is neither.
Say whether it is laminated: the finished thickness changes the pocket.
Choose the attachment by who reloads it
Tool-free slits and pockets for weekly changes by whoever is on shift.
Screw posts only where the page count genuinely moves. Cords where the paper must survive.
Ask how the edge is made
Turned and stitched has no seam. Heat-sealed and painted edges do.
In a room that sanitises between guests, that seam is the countdown.
Quote the opened width
Three panels on a letter insert open past two feet.
Measure your smallest table before you choose a fold-out.
And ask for the failure mode
Any supplier who cannot tell you how their mechanism fails has not thought about it.