Break-even duration

Equipment rents on three rates — a day rate, a week rate and a 28-day rate — and the cheapest one changes as the job runs long. This finds the two days where it changes, on a real listing’s real published rates.

Light Tower

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joseph cosgrove · Lighting - Light Towers

Day
$80
Week
$250
28 days
$500

Daily stops winning on

day 4

4 days at the day rate would be $320. On the week rate it is $250.

Weekly stops winning on

day 11

11 days at the day rate would be $880. On the 28-day rate it is $500.

The working

Whole weeks bill at the week rate; the leftover days bill at the day rate but never add up to more than one extra week; and a whole 28-day cycle never costs more than the 28-day rate. That is the rule, applied one day at a time.

Rental price by duration for Light Tower, days 1 to 35
DaysAt the day rateOn the ladderDifferenceRate in play
1$80$80—day
2$160$160—day
3$240$240—day
4$320$250you save $70week
5$400$250you save $150week
6$480$250you save $230week
7$560$250you save $310week
8$640$330you save $310week
9$720$410you save $310week
10$800$490you save $310week
11$880$500you save $38028-day
12$960$500you save $46028-day
13$1,040$500you save $54028-day
14$1,120$500you save $62028-day
15$1,200$500you save $70028-day
16$1,280$500you save $78028-day
17$1,360$500you save $86028-day
18$1,440$500you save $94028-day
19$1,520$500you save $1,02028-day
20$1,600$500you save $1,10028-day
21$1,680$500you save $1,18028-day
22$1,760$500you save $1,26028-day
23$1,840$500you save $1,34028-day
24$1,920$500you save $1,42028-day
25$2,000$500you save $1,50028-day
26$2,080$500you save $1,58028-day
27$2,160$500you save $1,66028-day
28$2,240$500you save $1,74028-day
29$2,320$580you save $1,740day
30$2,400$660you save $1,740day
31$2,480$740you save $1,740day
32$2,560$750you save $1,810week
33$2,640$750you save $1,890week
34$2,720$750you save $1,970week
35$2,800$750you save $2,050week

Rental rates only. Protection and the marketplace service fee are added on top — see the checkout figure below.

What checkout will quote you

Rental · 11 days
$500
Rental protection (RPP)
$75
Service fee
$50
Estimated total
$625

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The numbers come from one operator’s published rates, so the tool needs to know whose.

Where these numbers come from

The rates are the operator’s own, read live from their listing. The arithmetic is the same best-price billing engine that produces 2Quip invoices — not a second copy written for this page — run on the industry-standard terms: a 28-day cycle, whole weeks at the week rate, leftover days at the day rate capped at one more week.

An operator can agree different terms on an individual rental, and a long rental bills per 28-day cycle rather than in one lump. So treat this as what the rate card says, and the operator’s quote as what you are agreeing to.