Commercial interior cost is influenced by more than square footage. Demolition, civil changes, ceiling systems, flooring preparation, electrical capacity, air-conditioning, fire coordination, plumbing, acoustic needs, furniture density, joinery detail, signage, technology and restricted working hours can materially alter the budget. Two projects of identical size may therefore require very different investment.
Ask for an estimate that identifies measurable scope and assumptions. Clarify which approvals, professional fees, equipment, loose furniture, branding, networking, statutory work, taxes and contingency are included. Provisional allowances should be visible, because an undefined allowance can create a false impression of certainty.
Schedule is connected to decision speed and procurement. Late layout changes can affect ceilings, electrical points, flooring, furniture and service orders together. Identify the true business deadline, work backwards through approvals and lead times, and retain time for testing and corrections before customers or staff occupy the space.