Furniture for a room that changes
Tables and chairs for training rooms, specified together. Both fold or stack, which is the whole point in a room that has to become something else between sessions.
Buy the pair, not the pieces
Training rooms are where mismatched heights show up most obviously, because everyone is sitting in rows facing the same way. A stacking chair that is 30mm too low for the table is visible to the whole room.
Ordering table and chair from one collection removes the arithmetic and guarantees they work together.
Be honest about how often the room clears
Folding furniture trades comfort for storability. If the room genuinely reconfigures weekly, that is a good trade. If it has been "temporarily" laid out the same way for two years, you are paying a comfort penalty for flexibility nobody uses.
In that case, fixed meeting tables and proper conference chairs are the better buy.
Storage is the thing to plan
Folded tables and stacked chairs need somewhere to live, and that space needs a door wide enough to get them through. Measure the cupboard before you order forty chairs, not after.
Browse the pieces separately as folding and flip-top tables and stacking chairs.