Here's our barn. Planned it myself, so it has all I've wanted in a barn We have no loft, but one side is used for hay storage and bedding. (thus no loading hay up to it, or climbing up to get it, or tossing it down) .Has a "pass-thru" in the middle that contains feed bins, brooms, wheelbarrels etc. More handy than having all this stuff at one end of the barn.
Part of the roof goes over a run-in where the horses can go in & out (happiest that way, I think). In the winter, we add solid panels to the run-in to make it more comfortable, but leave a section open so they can still go in & out. The run-in opens into the barn hall thru two dutch doors.
Also, but you can't see it in the pix, there's a "stallion" stall, that's taller sided than others. This has dutch doors that open into the run-in & the stud or "new kid" can meet the herd over the bottom door, that's mini "nose height." The pix with the carriage lights is on the opposite side from the run-in.
Overall size is about 50 x 60. Stalls are 8 x 12, with removable walls to make them bigger if need be.
Oh, and for anyone wondering, the yellow tags are fly repellent tags, NOT numbers. Oh my, our little sweeties are by no means numbers!