After very helpful responses to the thread, First coop - will we regret something this small?, we've pretty much made up our minds to try to build something ourselves in hopes that it would best fit our situation in an economical way. Being on a suburban 7500 sq ft lot on the eastside of Seattle, we don't have a big back yard, but it's fully fenced and lined with chicken wire 2 feet high. The chicken wire was installed 3 years ago to keep our new puppy from escaping, but it may have some use left in it... After doing a couple hatches from friends' eggs, we've got 9 chicks that we'll be paring down to a "flock" of 3 layers - hopefully the best ones. Four of the chicks are 4 weeks old now and the other 5 were hatched in the past 24 hours. We're thinking that we might want to start with a portable tractor coop during the nicer weather when the lawn is growing well and the garden boxes are full of vegetables (hopefully). Meanwhile, we could build a stationary coop along the back fence within 10-15 feet of the back patio. The stationary coop could have electricity for a light on a timer and a corrugated slanted roof that collects rain water during the winter. Anyway, I scoured through as much material as I could find before trying to design the following A-frame tractor myself. We don't have a ton of space, so I've limited it to 6 feet in length, about 55 inches wide, and I believe it's in the neighborhood of 4 feet tall. I'm thinking about leaving a pretty good gap across the top spanned by hardware cloth and a vented peak roof that can easily be removed for greater ventilation/cooling. There's a number of things I haven't put in yet, such as the drawstring ramp, perch(es), hinged doors on the front to the nest and the right side for cleaning, or carry handles. I'm also planning on surrounding the bottom with hardware cloth and providing some kind of wind block for the bottom. Here's what I've come up with so far. It should end up weighing some 80-90 pounds Click on the thumbnail for a full-size view: What do you think? Will this be enough room for 3-4 hens? What are some of the concerns with this concept? Should we be looking at doing something completely different?