The DIY PVC feeders can be made rectangular and large enough to hold 15+ lbs of hay easily. For the lower mounting, the only concern i would have, would be the horse pawing at the feeder while eating. I don’t think the PVC would hold up to constant pawing or hoof contact. That’s why we mount them about chest high. We’ve had no issues with breakage mounted in that position.
I had a draft horse owner ask me about a slow feeder, so that’s why I started making a couple out of metal. I’m learning how to use a tubing roller, so getting the exact same shape in size is a bit challenging right now. The metal framed feeder might be a better way to go for a lower stall wall mount.
Thanks for finding our DIY Slow Feed Hay Feeder page on Facebook. Feel free to call me at 815-703-2870 if you have any questions.
Brian