The above photo is the first version. You can see it is kind of a "Bailey Chair made within a Bailey Chair." We left room so that the sides could get wider. We also made the holder for the Paw Bar (on the sides) able to be raised higher as he grew. We would just unscrew it and re-screw it at the proper height. We also made a back spacer that we inserted into the chair. We would make it smaller as he grew and then re-insert it into the chair.
Here is his first test after we made it. You can see how small he is in the chair - but the way we made the spacing and adjustable parts, he fits in there pretty well. We obviously over estimated the pillow he sat on - which we changed, eventually to a folded up towel. We did pad the chair with Gym Flooring from Dick's Sporting Goods that has held up very well.
Above is his first meal in the chair when he was just a little 14 pound baby. It took him a while to get used to the chair - but we sat with him the whole time and started out in small time blocks, building up to the 30 minutes we now do. It took a few months if I remember correctly.
So as Sidney grew, we made several small adjustments - making the paw bar higher and making the back spacer smaller and smaller. It was always a special day when we made adjustments. It meant we were having success in Sidney's health. He was gaining weight, getting nutrients and growing into a big boy. You can see from this above photo that it has been adjusted compared to the earlier pictures. Ultimately, once Sidney was full grown, we took the Bailey Chair and made the final measurements. Using the same chair and materials from the original version, we made the final version of the Bailey Chair, complete with a new paint job. The final photo is below. Sidney usually sits with his paws both up on the paw bar, but he is so comfortable in there now, he sometimes just relaxes with one paw on the bar. Whatever works.
So ultimately, we were able to make the most out of our situation. We were worried about the cost of building multiple chairs, but out of necessity, we figured out how to make this work. We even have his Portable Bailey Chair set at the final height and size as well (see below). So now both of his Bailey Chairs are working our well and so is Sidney.