What Are the Monthly Running Costs of a Plumbing Supplies Shop?
In a plumbing supplies shop the most expensive word is “no”. Running out of an emergency part moves not that day’s sale but that customer’s entire basket to another shop. 🚿
Short answer: a mid-sized shop runs at ₺48K to ₺145K a month.
The cost breakdown, fixed-versus-variable, three inflating lines, break-even and a fit check follow below.
Monthly cost breakdown
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- Fixed costs
- Variable costs
- The invisible cost: stock-out loss
Here’s the split.
Fixed costs
Rent ₺13-38K, staff (1-2 people) ₺24-68K, accounting and software ₺3-7K, insurance and service charges ₺2-5K. These run even if the shop sells nothing. 📊
Variable costs
Electricity, water, heating ₺3-9K, delivery fuel ₺3-10K, packaging and consumables ₺1-3K. This group moves with revenue and grows in busy months.
The invisible cost: stock-out loss
Saying “no” twenty times a month isn’t twenty small lost sales but the entire baskets of those customers. This line can exceed the rent.
Fixed side or variable side?
Fixed-weighted.
The weight of the fixed side
Rent and staff don’t change when revenue swings; outside the renovation season this weight becomes more visible, which is why the break-even point matters in quiet months.
Three lines that inflate the cost
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- 1. Shallow emergency stock
- 2. Dead stock in taps
- 3. Wrong-part returns
All three are stock decisions.
1. Shallow emergency stock
Running out of washers, cartridges and elbows is customer loss, not just a missed sale, and winning them back takes months. The group is cheap, so deepening it is easy.
2. Dead stock in taps
Expensive mixers standing for months lock money and the model ages. A small, well-chosen selection always beats a wide one here.
3. Wrong-part returns
Used or opened parts usually can’t be resold; a small but regular loss. Confirming the size at the point of sale reduces it.
When do you break even?
The emergency share lowers the threshold.
The logic of the calculation
With ₺75K in monthly fixed costs and a 30% gross margin, break-even revenue is roughly ₺250K. Raising the emergency-line share to lift the margin to 36% brings it to ₺208K. Margin mechanics in the plumbing margin article. 🧭
Who does this cost structure suit?
Those who value availability.
How were these numbers built?
We build the bands using three sources together: records from the field, open price lists and independent sector research. No figure is written from guesswork. Rules on our methodology page. 📐
📝 Field Notes
For three weeks we noted every product we said “no” to in one shop: thirty-six lines, all small and cheap. Their total stock cost was modest, but the baskets they had lost added up to more than the monthly rent. After the stock was deepened, revenue rose clearly while the cost table stayed the same. In this branch the cheapest investment is the small parts that never run out. 🚿
📖 Terms in Brief
Stock-out loss: the sale and customer lost because a product wasn’t there. Emergency line: the small group that must never run out. Dead stock: long-unsold product that locks money. Basket: the total a customer buys in one visit.
⚡ Quick Summary
Monthly running cost ₺48-145K. 📊 The invisible line: stock-out loss. Three inflating lines: shallow emergency stock, dead stock in taps, wrong-part returns. Break-even: fixed cost ÷ gross margin.
🎯 Your Next Move
Let’s work out your stock depth and break-even: quote form · free digital audit. 🤝
Frequently Asked Questions
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Delivery arrangements and buying rhythm can be flexed. Emergency line stock cannot; cutting there is a lost sale, and its saving is invisible while its loss is not.
Keeping hundreds of small lines complete takes discipline. For a narrower range, garden and landscaping; for a bigger basket, bathroom and tiles. Capital bands for every branch on the sector page.
Noting every product you say “no” to for a few weeks is enough; the list shows both the loss and the fix. The measurement costs nothing.
Holding one model in each of three price segments and showing the rest by catalogue is a common method. Sourcing to order frees money without shrinking the basket.
Flexible on unopened items and clearly limited on opened ones protects both the customer and the till. Saying the rule upfront is easier than arguing later.
Source: PHCP Pros — Plumbing Industry