1. Site Preparation and Footings:
- Clear and level the area for the shelter.
- Dig six post holes (12" diameter, 36" deep) for 6x6 posts arranged to support the 16'x9' shelter plus 9' extension.
- Pour concrete into holes and set posts vertically. Allow concrete to cure fully.
2. Frame the Platform:
- Attach pressure-treated 2x6 beams horizontally between posts to form the 16'x9' floor frame.
- Use galvanized carriage bolts and joist hangers for secure connections.
- Add 2x6 joists spaced 16" on center across the frame.
- Secure plywood flooring over joists.
3. Build the 9' Extension Storage Area:
- Frame an extension platform adjacent to the main structure using 2x6s and 6x6 posts as needed.
- Ensure the platform height matches main shelter floor.
- Cover with plywood or leave open for storage.
4. Construct the Hinged Side Wall (Ramp):
- Frame a 16'x9' wall panel using 2x4s spaced 16" on center.
- Attach exterior plywood sheathing.
- Fix 12" heavy-duty strap hinges along one long edge to secure wall to the shelter frame.
- Install rubber bumpers on edges to protect surfaces when lowered.
5. Install the Winch System:
- Mount the commercial-grade winch securely to the shelter frame near the hinged wall.
- Attach steel cable from winch to top edge of hinged wall.
- Add cable pulleys at strategic points to guide cable smoothly.
- Install safety chains to secure the wall in upright position.
6. Build Feeding Openings:
- Cut two 48"x48" openings evenly spaced on the opposite side of the hinged wall.
- Frame openings with 2x4s for rigidity.
- Attach heavy-duty hay nets securely using nails or screws.
7. Finalize Roofing:
- Frame a sloped roof over the shelter using 2x6 rafters.
- Cover with plywood sheeting.
- Install corrugated metal roofing panels, overlapping and securing with screws.
- Ensure proper overhangs and drainage.
8. Finishing Touches:
- Apply wood sealant or exterior paint to all exposed wood surfaces.
- Check all hardware is tight.
- Test hinged wall movement and winch operation with a safe load (simulate weight).
9. Operating Instructions:
- To load bales, disengage safety chains.
- Use winch to slowly lower hinged side wall to ground, forming ramp.
- Back truck up to ramp and unload 1200lb square bale onto ramp.
- Use winch to raise hinged wall back into vertical position.
- Secure safety chains to lock hinged wall.
- Feed bales through openings with nets to keep animals safe and prevent waste.
10. Maintenance Tips:
- Regularly inspect hinges, winch, and cables for wear.
- Reapply sealant or paint annually.
- Keep feeding nets repaired and clean.