How much flooring do I need for a 24x36 room?

Buy about 950 sq ft: the 864 sq ft floor plus 10% for cuts and waste. With boxes that cover 20 sq ft, that's 48 boxes. Diagonal or herringbone layouts need 15–20% extra instead.

How much paint do I need for a 24x36 room?

With 8 ft ceilings, one door and one window, the walls are about 924 sq ft. Two coats at 350 sq ft per gallon is 5.3 gallons, so buy 6. Painting the ceiling as well brings it to 10.2 gallons.

How many square meters is 24 by 36 feet?

80.27 m². The room is 7.32 m by 10.97 m.

How many sheets of drywall for a 24x36 room?

About 62 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 24x36 Room?

A 24x36 room is 864 square feet (80.3 m²). Flooring with waste, paint, drywall and baseboard for a 24x36 room.

Updated October 12, 2026 · FloorFigures

Short answer

A 24x36 room is 864 square feet (24 × 36), or 80.3 m² and 96 square yards. Its perimeter is 120 ft. Flooring with 10% waste comes to about 950 sq ft.

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

Materials for a 24x36 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	864 sq ft	Wall to wall
Flooring to buy	950 sq ft (48 boxes)	10% waste, 20 sq ft boxes
Carpet	97.3 sq yd	12 ft roll, 1 seam
Wall area	924 sq ft	8 ft walls, less a door and a window
Paint, walls	5.3 gal (buy 6)	2 coats, 350 sq ft per gallon
Paint, walls and ceiling	10.2 gal	2 coats
Drywall	62 sheets	4x8 sheets, walls and ceiling, 10% waste
Baseboard	117 ft	Perimeter less a 3 ft door

What a 24x36 room is used for

Rooms this size are usually garages (a two-car garage is commonly 20–24 ft on each side), great rooms, basements or open-plan living areas. A queen bed (60" × 80") takes up about 33 sq ft, or 4% of the floor.

24x36 in other units

Unit	Value
Square feet	864
Square meters	80.27
Square yards	96
Square inches	124,416
Acres	0.0198
Dimensions in meters	7.32 × 10.97 m

Rooms close to 24x36

Room	Square feet	Square meters
20x22	440	40.9
20x24	480	44.6
22x22	484	45
22x24	528	49.1
24x24	576	53.5
20x30	600	55.7
24x30	720	66.9
30x40	1,200	111.5

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 24x36 room?: A 24 by 36 foot room is 864 square feet: 24 × 36 = 864. That's 80.3 square meters or 96 square yards.
How much flooring do I need for a 24x36 room?: Buy about 950 sq ft: the 864 sq ft floor plus 10% for cuts and waste. With boxes that cover 20 sq ft, that's 48 boxes. Diagonal or herringbone layouts need 15–20% extra instead.
How much paint do I need for a 24x36 room?: With 8 ft ceilings, one door and one window, the walls are about 924 sq ft. Two coats at 350 sq ft per gallon is 5.3 gallons, so buy 6. Painting the ceiling as well brings it to 10.2 gallons.
How many square meters is 24 by 36 feet?: 80.27 m². The room is 7.32 m by 10.97 m.
How many sheets of drywall for a 24x36 room?: About 62 sheets of 4x8 drywall for the walls and ceiling with 8 ft walls, one door and one window, including 10% waste.