Rather than negotiating a different specification room by room, most schools benefit from agreeing a standard specification covering surface material, size tiers by room type, and mounting method, then applying it consistently across a bulk order. Ask suppliers directly about surface material and expected lifespan under daily school use, what warranty is offered, and whether they have experience delivering at a similar scale, since school-wide rollouts differ meaningfully from single-room installations.
Agreeing this standard with input from a handful of teachers across different subjects and year groups, rather than purely from a facilities perspective, tends to produce a specification that actually holds up once boards are in daily use.
Once agreed, this standard also becomes a useful reference for any future budget conversation, since it gives a clear per-room cost basis rather than each new room being quoted as an isolated unknown.
Reviewing this standard again after the first phase of installations is also worth doing, since real-world feedback from the first rooms fitted often reveals a small adjustment worth carrying into later phases.