Can an outside storage shed be used to store flammable liquids?

Employers are restricted to 1,100 gallons of flammable liquid storage within 10 feet of any buildings under 1910.106(d)(6).

OSHA says that the outside storage area must be graded in a manner to divert possible spills away from buildings or other exposures or be surrounded by a curb at least 6 inches high. When curbs are used, employers must make provisions for draining of accumulations of ground or rain water or spills of flammable liquids. Drains must end at a safe location and be accessible to operation under fire conditions.

Also, the storage area must be protected against tampering or trespassers where necessary and be kept free of weeds, debris, and other combustible material not necessary to the storage.

Your storage must also meet any requirements of your local and/or state fire code, so you will want to consult your local fire authorities during your next fire inspection.