Pick the tank size from your burn, not a guess
The right yard tank holds enough between drops and still takes a full delivery. Start with your numbers.

Start with daily use
Add up what your equipment or fleet burns on a normal day and on a busy one. Multiply by the days you want between deliveries. That is the working volume.
Leave room on top. A tank should be able to take a full delivery before it runs low, not after the equipment is already waiting.
Match the delivery
A tank wagon can top off smaller tanks. A transport load usually needs a tank that can take a large drop in one hookup. Check the minimum gallons on the distributor's profile before you buy.
If the tank is too small for the distributor's minimum, you pay for extra trips or get refused.
Site and permit limits
Spill containment, placement, and local fire code rules can limit tank size and location. Check with your local fire authority and your state environmental agency before installing.
Some distributors rent or set tanks. Look for the bulk tanks badge on a profile.
Questions
Should I buy or rent a tank?
Short jobs often rent. Long-term yards often buy. Some distributors offer both.
Do I need double-wall?
It depends on local rules and your site. Ask your fire authority.