Include the cost of gravel. For a 4-inch slab, you'll need the same amount of gravel you calculated for concrete, as the gravel bed will also be 4 inches deep. Use the same calculation to arrive at cubic yards of gravel, then multiply by 1.5 tons per cubic yard to get the number of tons you will need.
Average Iceland Salaries. The average salary for iceland jobs is $54,000. Average iceland salaries can vary greatly due to company, location, industry, experience and benefits.This salary was calculated using the average salary for all jobs with the term iceland anywhere in the job listing.verage iceland salaries can vary greatly due to company, location, industry, experience and benefits. This salary was calculated using the average salary for all jobs with the term iceland anywhere in the job listing.
1 It is less than half the average salary of the UK and the United States, where average monthly earnings are just over $3,000 a month, or around $37,000 a year. It is twice the average salary of Bulgaria, and the same as the average salary in Poland. 2  The country at the bottom of the average earnings league is Tajikistan, where the average wage is about $2,700 a year-while the country out on top is Luxembourg with average earnings of around $48,000 a year.