Planning To Book Storage Units in Kelso? Measure bulky items, count your boxes, and consider access needs. Check unit sizes and rental details before choosing what fits best. Titan Self Storage. 300 Hawthorne St, Kelso, WA 98626. Call (360) 768-2078. https://www.tselfstorage.com/storage-units/washington/kelso/titan-self-storage-3501052/