When in full swing there will be hundreds of chicks in the brooder room, from a couple days old to maybe 6 weeks old. No partitions. More chicks go in each week and in a month or so I'll start pulling out the older ones to go out into a coop in the chicken barn. In the brooder room many of the youngest chicks spend a lot of time under the floor brooder.
The 2 box brooders, on 2 by 4 legs, in the hatchery have deep dropping pans for wood shavings and they work great. I just sprinkle more shavings on top as needed and don't have to clean them until the end of the hatching season.
Materials needed:
(4) Legs, 2x4s (actual size 1 ½" x 3 ½") x 48" (may be shorter if using pre-cut studs)
(1) Top Back, 7/16" OSB, 48" x 10"
(1) Door - Top Front, 7/16" OSB, 48" x 16"
(3) Hinges, 2" or whatever
(1) Front, 7/16" OSB, 51" x 10"
(2) Supports - bottom, 1x4 (actual size ¾" x 3 ½" or 3 5/8) x 51"
(1) Back, 7/16" OSB, 51" x 16"
(1) Bottom, 7/16" OSB, 48" x 27"
(2) Sides, 7/16" OSB, 25" x 16"
(4) Supports – inside front & back, 1x4 (could even use 1x3) x47"
(4) Supports – inside on sides, 1x4 or 1x3 x 23 ½"
(1) Support – inside divider, 1x4 or 1x3 x 23 ½"
(1) Window on top – acrylic, ¼" (or whatever) x 6" x 24" (I added a couple more in front, later, for short kids to peek in)
(1) Support – door, 2x4 x 45 ½"
(1) Droppings Pan, galvanized, 6" x 26 ½" x 46 ½"
(1) 33" Brooder Heater, #5040 thru Cutler's Supply
(3) Pan Slides, 1x4 or 1x3 x 26 ½"
(1) Hardware Cloth, 24 ¼" x 46 ¾"
(3) ¼" x ¾" Wood Strips - sides, 25" long
(2) ¼" x ¾" Wood Strips – front & back, 45 ½" long
(1) ¼" x ¾" Wood Strip - center, 23 1/2 " long
A bunch of 1" drywall screws