Please see the information listed below for the book shelf.

Shelves are fixed - (after assembly)

Back is finished - has floor protectors

Body: 36 1/4"w x 13 3/4"d

Shelves(including sides) 36"w x 12 3/8"d

Wood area of shelf: 34 3/4"w x 12 3/8"d x 5/8" thick

Top shelf: 20 1/2"h to inside top of arch

Remaining shelves are 12" apart

Opening at front: 33 3/4"w -- opening at sides: 11 3/8"w

Rods in back 8" apart

5" floor gap

Leg spread(front & back) 36 1/2"(out to out) 34"(in to in)

(sides) 14"(out to out) 11 1/2"(in to in)

Thank you so much for your response!!