Safco Flat File Bases Select Size : 40" x 29" 46" x 35" 53" x 41" Select Color: SKU: Safco Flat File Base PricingQuantityPrice $165.00 to $228.12 Quantity -+ Add to Cart Description Bases for Safco Flat Files. Raises flat files 6" off the floor. Available in 3 sizes to match Safco Flat files and colors. DescriptionBackBases for Safco Flat Files. Raises flat files 6" off the floor. Available in 3 sizes to match Safco Flat files and colors.