Scenario: a contractor with twelve trucks needs next winter’s edge budget and has only a pile of invoices. Direct answer: sort last winter’s invoices into lines, turn them into a cost per truck and per event, then build a low, expected and high range. The example below uses invented numbers to show the method; use your own invoices.
Step 1: Sort the invoices
Create lines: edges, bolts and hardware, shoes, freight, labour for changes (if tracked) and emergency purchases. Put each invoice in one line.
Step 2: Worked example (invented numbers)
| Line | Last winter (invented) | Per truck |
|---|---|---|
| Edges | 24,000 | 2,000 |
| Bolts and hardware | 3,600 | 300 |
| Shoes | 1,800 | 150 |
| Freight and handling | 2,400 | 200 |
| Emergency purchases | 3,000 | 250 |
| Total | 34,800 | 2,900 |
Step 3: Adjust for events
Divide by the number of events last winter. If there were 25 events, the invented example gives about 1,392 per event across the fleet. Next winter’s total depends on how many events you plan for.
Step 4: Build a range
A range is a decision tool: the low case tells you the floor, the high case tells you the risk.
- Low case: fewer events than last winter, cost per event times the lower count.
- Expected case: same as last winter, adjusted for price changes in quotes.
- High case: more events, plus a buffer for emergencies.
Step 5: Check for surprises
This is the step that turns an invoice total into a finding. Keep the invoices in front of you and answer these three.
- Which trucks used the most? Is that routes, drivers or equipment? A single truck running through edges usually has a mounting or alignment problem.
- Were emergency purchases avoidable with better stock? Emergency buys carry both a price premium and a freight premium.
- Did any invoice include a price you would not expect to repeat? One-off prices distort next year’s budget if nobody flags them.
Step 6: Review
Compare the budget to actual spend monthly during the season, and note the reasons for variances.
Checks on the invoices themselves
The invoice check is where a budget line reveals what actually happened.
- Look for invoices that belong to another year or another business line.
- Look for one-off items, such as a damaged-shipment replacement, that should not be repeated in the budget.
- Look for freight that was higher because of rush orders, and ask what an earlier order would have saved.
- Check that credits and returns are netted off.
A clean set of invoices makes the budget easier to defend to an owner or a lender. Keep the sorted sheet with the budget so that anyone can trace a number back to its source.
Boundary: All numbers in the worked example are invented to show the method and are not benchmarks, prices or real invoices.
Further reading on this site.
JOMA Style Blade Cost per Season: Comparing Against Two Steel Change-Outs ↗Plow Blade Cost per Mile: The Inputs That Decide the Answer ↗Carbide snow plow blades ↗Counting Handling Injuries in Blade Cost: What Public Reports Mention ↗What the Producer Price Index for Steel Mill Products Says About Edge Steel Costs ↗Currency Swings and Imported Edge Prices: What Is Hedgeable for a Small Buyer ↗
JOMA Style Blade — Rubber-Flex Edge with Carbide Wear Segments
Carbide Snow Plow Blade for Highway and Municipal Fleets
Tungsten Carbide Inserts for Snow Plow Edges