Offset base design allows for larger usable work area beneath I-beam. Allows for easy transportation of jib crane with fork truck. Fixed length I-beam will pivot 360 degrees for complete access. Empty base models include instructions for proper filling with concrete. Base size is 42-3/16" W x 42-3/16" L x 18"H or 36"H. Built-in fork tubes, measuring 7-1/2"W x 2-1/2"H usable on 24" centers, for transportation with fork truck. Steel construction with blue painted finish. Units ship knocked down. Not for use as a fork truck attachment. 10' under I-beam. Hoists & Trollies can be ordered seperately. Design allows for larger usable work area beneath I-beam Concrete filled base for immediate use Upright vertical column bolts to base for optimal efficiency Steel construction for strength and durabilityModels & Specifications Model # Description List Price JIB-CBX-18-B ADDITIONAL OFFSET STEEL BASE 18 IN. EMPTY $850.57 JIB-CBX-36-B ADDITIONAL OFFSET STEEL BASE 36 IN. EMPTY $1,092.92 JIB-CBX-18-BC ADDITIONAL OFFSET STEEL BASE 18 IN. FILLED W/CONCR $1,186.57 JIB-CBX-36-BC ADDITIONAL OFFSET STEEL BASE 36 IN. FILLED W/CONCR $1,523.53 JIB-CBX-25-8-10 PORT OFFSET JIB 250 CAP 8FT IBEAM W/EMPTY BASE $3,040.93 JIB-CBX-25-8-10-BC PORT OFFSET JIB 250 CAP 8FT IBEAM W/FILLED BASE $3,343.45 JIB-CBX-50-8-10 PORT OFFSET JIB 500 CAP 8FT IBEAM W/EMPTY BASE $4,565.48 JIB-CBX-25-10-10 PORT OFFSET JIB 250 CAP 10FT IBEAM W/EMPTY BASE $4,618.50 JIB-CBX-50-8-10-BC PORT OFFSET JIB 500 CAP 8FT IBEAM W/FILLED BASE $4,845.21 JIB-CBX-25-10-10-BC PORT OFFSET JIB 250 CAP 10FT IBEAM W/FILLED BASE $4,937.86 JIB-CBX-100-8-10 PORT OFFSET JIB 1000 CAP 8FT IBEAM W/EMPTY BASE $5,828.06 JIB-CBX-50-10-10 PORT OFFSET JIB 500 CAP 10FT IBEAM W/EMPTY BASE $5,996.49 JIB-CBX-100-8-10-BC PORT OFFSET JIB 1000 CAP 8FT IBEAM W/FILLED BASE $6,353.28 JIB-CBX-50-10-10-BC PORT OFFSET JIB 500 CAP 10FT IBEAM W/FILLED BASE $6,535.29 Frequently Asked QuestionsHow do I choose the right model? Each Vestil model number encodes the size, capacity, and configuration shown in the specification table above — match those figures to your application requirements.Are certified drawings available? Yes. Certified approval drawings and compliance certificates are available per model number on request.WarrantyBacked by Vestil's 1-Year Limited Warranty against defects in materials and workmanship.