Does a queen bed fit in a 10x12 room?

Yes. A 10 foot wall is 120 inches and a typical queen frame is about 71.85 inches wide, which leaves roughly 24 inches of floor on each side before nightstands. Whether it is comfortable depends on whether a 30 inch walkway survives once nightstands and a dresser are in place.

How wide should a walkway beside a bed be?

Around 30 inches is the usual comfortable minimum for a path you use daily. Below that you turn sideways to pass, and making a bed on that side becomes awkward.

Why use frame dimensions instead of mattress sizes?

A queen mattress is 60 by 80 inches, but the frame that carries it is wider and longer. The frame is what touches the walls, so clearance has to be computed from the frame.

Does the bed leave a walkway?

A bed almost always fits. The question is what is left around it. This computes the clear floor on each side and at the foot, in inches, with the subtraction written out.

Room and bed

Room width (headboard wall)

Room length

Bed size (frame, not mattress)

Two nightstands

Nightstand width

Dresser at the foot

Dresser depth

Result

No 30 in walkway

Floor either side

24.075 in per side

(120 in − 71.85 in) ÷ 2 = 24.075 in per side, using the queen frame (60 × 80 in mattress).

Left walkway

4.075 in

24.075 in − 20 in nightstand = 4.075 in

Right walkway

4.075 in

24.075 in − 20 in nightstand = 4.075 in

Foot of the bed

59 in

144 in − 85 in = 59 in

Tightest path

4.075 in — left of the bed

4.075 in − 30 in = -25.925 in against the 30 in comfortable minimum.

What has to give

Drop one nightstand, or use a 0 in wide one instead of 20 in.
Push the bed against one side wall: the whole 48.15 in of side gap moves to a single 28.15 in walkway.
A full frame is 14.35 in narrower, adding 7.175 in per side.
Accept a 4.075 in path on the tight side and keep 30 in on the other.

These results are arithmetic on the numbers you entered — nothing is measured for you and nothing here is a guarantee that an item will fit. Delivery paths are not checked: stairs, hallways, lifts and doorway routes can stop an item that fits the room perfectly. Frame dimensions vary by model; confirm the actual frame you are buying rather than the mattress size.

Common questions

Does a queen bed fit in a 10x12 room?: Yes. A 10 foot wall is 120 inches and a typical queen frame is about 71.85 inches wide, which leaves roughly 24 inches of floor on each side before nightstands. Whether it is comfortable depends on whether a 30 inch walkway survives once nightstands and a dresser are in place.
How wide should a walkway beside a bed be?: Around 30 inches is the usual comfortable minimum for a path you use daily. Below that you turn sideways to pass, and making a bed on that side becomes awkward.
Why use frame dimensions instead of mattress sizes?: A queen mattress is 60 by 80 inches, but the frame that carries it is wider and longer. The frame is what touches the walls, so clearance has to be computed from the frame.

What this did not check

This page only did the arithmetic above. It did not look at:

The door swing, and whether the bed, a nightstand or the dresser sits inside its arc.
Windows, radiators, sockets and wardrobe doors, none of which are placed in this calculator.
Anything else you are buying at the same time — only the bed, two nightstands and one dresser are modelled.
The delivery path — stairs, hallways, lifts, turns and doorway routes are not measured here, and they stop more purchases than room size does.