12-Foot Grain Bin Hopper Wall Repair Kit
Repair the tapered hopper walls of a compatible 12-foot-diameter bulk feed bin with this complete 12-section replacement kit. Each section is made from 18-gauge G90 galvanized steel. Assembly hardware and sealant are included to help complete the repair.
The manufacturer identifies certain older-design Sioux Steel, PAX and Brock feed bins as possible applications. Verify compatibility before ordering: check the hopper diameter, 12-section arrangement, 127-inch sheet length, 3⅛-inch bolt-hole spacing and hole counts against your existing bin. A brand name alone does not establish fit. For different sizes, view our grain bin wall repair kits.
12-Foot Hopper Kit Specifications
- Fits compatible 12-foot-diameter hopper configurations
- 12 replacement tapered hopper wall sheets
- 127-inch sheet length
- 3⅛-inch bolt-hole spacing; verify upper and lower connection patterns
- 13 bolt holes on top and 3 on bottom per sheet
- 18-gauge G90 galvanized steel
- Hardware and sealant included
Included Hardware and Sealant
- 12 hopper wall sections
- 80 hex-head bin bolts, 5/16 x 1 inch
- 120 truss-head bin bolts, 5/16 x ¾ inch
- 200 hex flange nuts, 5/16 inch
- Two 50-foot rolls of caulking material
Confirm all included quantities and the installation requirements for your specific hopper before beginning disassembly.
Compare Bin Wall Repair Kit Sizes
On mobile, swipe across the table to see all measurements.
| Bin diameter | Sections | Sheet length | Hole spacing | Top holes | Bottom holes |
|---|---|---|---|---|---|
| 6' | 6 | 52" | 3⅛" | 13 | 4 |
| 7' | 6 | 85¾" | 3⅛" | 15 | 5 |
| 9' | 9 | 91¼" | 3⅛" | 13 | 3 |
| 12' | 12 | 127" | 3⅛" | 13 | 3 |
How to Verify Hopper Compatibility
Begin with the existing bin rather than its brand label alone. Measure the hopper diameter at the appropriate connection, count the tapered panels, and compare sheet length, hole spacing, hole counts and attachment points. Older and modified bins may have different connections even when they share a nominal diameter or manufacturer.
The manufacturer references older Sioux Steel, PAX and Brock designs for this kit, but not every bin produced by these companies uses the same hopper. Send Barn World photographs and measurements if you are uncertain about the fit. These panels replace the tapered hopper walls, not the straight cylindrical storage walls.
When Should You Replace Hopper Wall Sections?
Damage or excessive corrosion in the sloped hopper can justify replacing those panels when the other parts of the feed bin remain in serviceable condition. Examine the legs, braces, outlet, fasteners and adjoining storage body before deciding on a panel-only repair. New hopper sheets cannot compensate for damaged supports or an unstable foundation.
Compare the cost of compatible replacement panels with the cost of replacing the larger bin assembly. Freight, lifting equipment, labor and other necessary repairs should be part of that decision.
Planning a Safe Hopper Repair
Completely empty the bin and arrange adequate structural support before any hopper disassembly. A qualified installer should assess the supports and determine the appropriate removal and reassembly procedure. Follow the applicable manufacturer instructions for alignment, fastening and use of the supplied sealant. Do not force incompatible sheets into place or modify the hole pattern to compensate for the wrong kit.
Galvanized Steel and Ongoing Maintenance
The 18-gauge G90 galvanized coating helps resist corrosion, but damaged joints, persistent moisture and worn protective surfaces can still shorten service life. After installation, check bolts, panel seams, supporting legs and the outlet area periodically. Correct conditions contributing to the original deterioration and maintain the bin's weather protection.
Grain Bin Hopper Wall Diagrams
Tapered Hopper Wall Section
Bin Leg and Bolt-Hole Connection
Freight Quotes and Related Repair Parts
These long galvanized wall sections require appropriate freight planning. Contact Barn World with the required kit quantity, delivery ZIP code and unloading arrangements for a quote. Provide the existing bin dimensions and photographs when requesting compatibility assistance.
For other sizes, browse hopper wall repair kits, or view grain bin accessories for additional feed-bin components.