My wife wanted to replace this old $150 Ikea bookshelf so I made a Monticello-style stacking bookcase out of walnut/jatoba/maple for the low low price of only $1k : r/woodworking
Brand New IKEA RAGRUND Bamboo Shelf Unit 37x37x104 cm (14 5/8x14 5/8x41 ") | eBay
BERGSHULT brown-black, Shelf, 80x30 cm - IKEA
BERGSHULT / GRANHULT wall shelf, brown-black/nickel-plated, 160x20 cm - IKEA
KALLAX / LACK storage combination with shelf, black-brown, 189x39x147 cm - IKEA
IKEA KALLAX Shelf Unit BLACK-BROWN 16 1/2" x 57⅞", 402.758.46 - NEW IN BOX | eBay