How much flooring do I need for a 16x18 room?

Buy about 317 sq ft: the 288 sq ft floor plus 10% for cuts and waste. With boxes that cover 20 sq ft, that's 16 boxes. Diagonal or herringbone layouts need 15–20% extra instead.

How much paint do I need for a 16x18 room?

With 8 ft ceilings, one door and one window, the walls are about 508 sq ft. Two coats at 350 sq ft per gallon is 2.9 gallons, so buy 3. Painting the ceiling as well brings it to 4.5 gallons.

How many square meters is 16 by 18 feet?

26.76 m². The room is 4.88 m by 5.49 m.

How many sheets of drywall for a 16x18 room?

About 28 sheets of 4x8 drywall for the walls and ceiling with 8 ft walls, one door and one window, including 10% waste.

Room sizes

How Many Square Feet Is a 16x18 Room?

A 16x18 room is 288 square feet (26.8 m²). Flooring with waste, paint, drywall and baseboard for a 16x18 room.

Updated October 12, 2026 · FloorFigures

Short answer

A 16x18 room is 288 square feet (16 × 18), or 26.8 m² and 32 square yards. Its perimeter is 68 ft. Flooring with 10% waste comes to about 317 sq ft.

Drawn to scale. Each grid square is 1 ft × 1 ft.

Materials for a 16x18 room

Estimates for a plain rectangular room with 8 ft ceilings, one door and one window. Adjust for your own room with the flooring, paint and drywall calculators.

Item	Quantity	Assumes
Floor area	288 sq ft	Wall to wall
Flooring to buy	317 sq ft (16 boxes)	10% waste, 20 sq ft boxes
Carpet	44 sq yd	12 ft roll, 1 seam
Wall area	508 sq ft	8 ft walls, less a door and a window
Paint, walls	2.9 gal (buy 3)	2 coats, 350 sq ft per gallon
Paint, walls and ceiling	4.5 gal	2 coats
Drywall	28 sheets	4x8 sheets, walls and ceiling, 10% waste
Baseboard	65 ft	Perimeter less a 3 ft door

What a 16x18 room is used for

Rooms this size are usually living rooms, family rooms, large primary suites or open kitchens. A queen bed (60" × 80") takes up about 33 sq ft, or 12% of the floor.

16x18 in other units

Unit	Value
Square feet	288
Square meters	26.76
Square yards	32
Square inches	41,472
Acres	0.0066
Dimensions in meters	4.88 × 5.49 m

Rooms close to 16x18

Room	Square feet	Square meters
14x18	252	23.4
16x16	256	23.8
15x18	270	25.1
14x20	280	26
12x24	288	26.8
15x20	300	27.9
16x20	320	29.7
18x18	324	30.1

Room not a simple rectangle? Use the square footage calculator for L-shapes and angled walls, or split it into rectangles.

Questions

How many square feet is a 16x18 room?: A 16 by 18 foot room is 288 square feet: 16 × 18 = 288. That's 26.8 square meters or 32 square yards.
How much flooring do I need for a 16x18 room?: Buy about 317 sq ft: the 288 sq ft floor plus 10% for cuts and waste. With boxes that cover 20 sq ft, that's 16 boxes. Diagonal or herringbone layouts need 15–20% extra instead.
How much paint do I need for a 16x18 room?: With 8 ft ceilings, one door and one window, the walls are about 508 sq ft. Two coats at 350 sq ft per gallon is 2.9 gallons, so buy 3. Painting the ceiling as well brings it to 4.5 gallons.
How many square meters is 16 by 18 feet?: 26.76 m². The room is 4.88 m by 5.49 m.
How many sheets of drywall for a 16x18 room?: About 28 sheets of 4x8 drywall for the walls and ceiling with 8 ft walls, one door and one window, including 10% waste.