Capacity before demand: what happens if sales double?

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Capacity is more than hours on a roster

A team may have forty paid hours per person but fewer hours available for the work being sold. Meetings, administration, leave, training, maintenance and unpredictable rework all affect usable capacity. Skill mix also matters. Spare time in one role cannot always resolve a queue in another.

Map the work at the stage that limits throughput. Count units consistently and examine variation. A complex job and a simple job may consume very different effort, even if the sales report counts both as one order.

Start with the commitments already made

List current work, promised dates, required inputs and known constraints. Add the proposed new demand. Identify where work will wait, where quality could be affected and which expenses must be paid before cash arrives.

Government cash-flow guidance distinguishes the timing of incoming and outgoing money. Apply that timing view to growth. Revenue on a report does not pay a supplier before the customer pays you.

Worked example (illustrative): doubled orders, unchanged bottleneck

A team has 300 productive hours available in a period. Existing work requires 240 hours. A proposed campaign could add 20 jobs requiring four hours each, or 80 hours. The apparent spare capacity is 60 hours, leaving a 20-hour shortfall before allowing for uncertainty.

The answer is not automatically overtime. Options include a later delivery date, a narrower scope, improved workflow, qualified additional capacity or limiting the campaign. Each changes cost, risk and the customer promise.

If the average four-hour estimate hides several ten-hour jobs, the shortfall may be worse. Review the range and critical skill requirement, not only the mean.

Stress-test the customer journey

Ask what happens if enquiries double, accepted work doubles or a key person is unavailable. These are different scenarios. More enquiries create screening and quoting work even if sales do not rise. More accepted work affects delivery and funding. Absence exposes dependency.

For each scenario, name the first likely failure, its consequence and the earliest warning. Do not wait for a backlog to become a complaint before acknowledging the capacity limit.

Improve the constraint before adding indiscriminate volume

Look for repeated waiting, rework and missing inputs. A clearer intake process may release capacity. But time saved is not guaranteed until tested, and the released time may be needed for quality or recovery rather than more sales.

Avoid assuming every process improvement can be converted directly into headcount savings. Measure the actual effect and check whether the team can sustain it without hidden effort.

Build a promise threshold

Define when a new job can be accepted, when it needs review and when the business must decline or propose a different date. Give the decision an owner. The threshold should account for scope, capacity, quality and cash rather than only whether a customer is willing to pay.

A controlled growth decision may be slower than the sales target suggests. That is not automatically a lack of ambition. It may be the condition that lets the business keep its promises as demand grows.