Worker in gloves and helmet hanging a sheet of drywall

Reference

How many drywall screws per sheet, with sheet weights and mud

Three numbers decide how a drywall job goes: what each sheet weighs when you lift it to the ceiling, how many screws go in, and how much compound it takes to hide them. Sheet sizes themselves are on the drywall sheet sizes guide.

How many drywall screws per sheet? About 32 on a wall at 16 in spacing, about 40 on a ceiling at 12 in, for a 4 × 8 sheet. That sheet weighs about 51 lb in ½ in (70 lb in ⅝ in Type X, 40 lb lightweight) and takes about 0.34 gallons of joint compound through three coats.

How much does a sheet of drywall weigh

Thickness	4 × 8	4 × 10	4 × 12	4 × 8 sheets per unit
1/4 in	38 lb · 17.2 kg	48 lb · 21.8 kg	58 lb · 26.3 kg	100
3/8 in	45 lb · 20.4 kg	56 lb · 25.4 kg	67 lb · 30.4 kg	60
1/2 in standard	51 lb · 23.1 kg	64 lb · 29.0 kg	77 lb · 34.9 kg	50
1/2 in lightweight	40 lb · 18.1 kg	50 lb · 22.7 kg	60 lb · 27.2 kg	54
5/8 in Type X	70 lb · 31.8 kg	88 lb · 39.9 kg	106 lb · 48.1 kg	40

4 × 8 sheets per unit; varies by plant, and longer sheets come in smaller units. Real sheets vary by a few pounds by brand and moisture.

What size screws for 1/2 and 5/8 drywall

The screw must bite ⅝ in into wood or ⅜ in into metal past the panel, which is why steel framing takes a shorter screw. Coarse thread for wood studs, fine thread (Type S) for steel. Quarter-inch board usually goes over an existing wall, so its screw has to pass through the old board too.

Panel	Wood framing	Metal framing
1/4 in	1 in coarse thread	1 in fine thread (Type S)
3/8 in	1 in coarse thread	1 in fine thread (Type S)
1/2 in standard	1-1/4 in coarse thread	1 in fine thread (Type S)
1/2 in lightweight	1-1/4 in coarse thread	1 in fine thread (Type S)
5/8 in Type X	1-5/8 in coarse thread	1 in fine thread (Type S)
Two layers of 1/2 in	2 in coarse thread	1-5/8 in fine thread (Type S)

How many drywall screws per sheet

Ceilings: screws every 12 in along each joist. Walls: every 16 in along each stud. You can go to 24 in on walls (16 in on ceilings) only when the board is also glued with drywall adhesive. A 1 lb box holds about 240 1¼ in screws.

Screw spacing along each stud or joist	Per 4 × 8 sheet	Per 4 × 12 sheet	Per 1,000 sq ft	Pounds of screws per 1,000 sq ft
12 in on center	40	60	1,250	5.2 lb
16 in on center	32	48	1,000	4.2 lb
24 in on center	24	36	750	3.1 lb

How much mud and tape per sheet of drywall

Compound	Per 4 × 8 sheet	Per 1,000 sq ft	Per 100 m²	Sheets per 4.5 gal bucket
All-purpose, ready-mixed Amazon	0.34 gal	10.5 gal	43 L	13
Lightweight all-purpose Amazon	0.30 gal	9.4 gal	38 L	15
Setting-type powder Amazon	1.7 lb	53 lb	26 kg	—

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Tape: about 12 linear feet per sheet, 375 ft per 1,000 sq ft — a 500 ft roll covers 42 sheets.

How much weight can drywall hold

Packaging ratings are maximum loads in sound 1/2 in board. For a safe working load use about a quarter of the figure, and fasten anything heavy or anything that moves into a stud. A TV or a loaded shelf goes into studs; toggles are for light loads.

Fastener	Rated, per fastener	kg	Note
Screw into drywall only	5 lb	2.3	typical; never for anything that moves
Plastic expansion anchor Amazon	20 lb	9.1	packaging rating, light duty
Self-drilling (zip) anchor Amazon	50 lb	22.7	packaging rating, 1/2 in board
Molly bolt (hollow-wall anchor) Amazon	60 lb	27.2	25–75 lb by size
Spring-wing toggle bolt Amazon	80 lb	36.3	packaging rating, 1/2 in board
Strap toggle (SnapToggle type) Amazon	240 lb	108.9	ultimate load; 238 lb for 3/16 in, 265 lb for 1/4 in
Screw into a stud	100 lb	45.4	a #8 screw into framing; the practical limit for a shelf bracket

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The drywall calculator counts sheets, screws, tape and mud for a room.

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Sheet weights: USG Gypsum Construction Handbook, 7th ed., panel weights per 1,000 sq ft (regular 1/2 in about 1.6 lb/ft², 5/8 in Type X about 2.2); USG Sheetrock Brand UltraLight panel data (nominal 1.25 lb/ft² for 1/2 in); National Gypsum Gold Bond product data; PABCO Gypsum packaging sheet for units per pallet (100 / 60 / 50–54 / 54 / 40–50 sheets of 4 × 8). Screw length and spacing: ASTM C1002 and Gypsum Association GA-216 — 5/8 in into wood, 3/8 in into steel; 12 in on ceilings, 16 in on walls, 24 in on walls only with adhesive. Screws per pound: Grip-Rite 1 lb box of #6 × 1-1/4 in coarse (about 238). Joint compound: USG FAQ — about two 4.5 gallon pails of ready-mixed compound per 1,000 sq ft of board (we plan on 10.5 gal to allow waste); USG Plus 3 lightweight 9.4 gal per 1,000 sq ft; USG Easy Sand setting-type 18 lb bag per about 340 sq ft; tape 370 ft per 1,000 sq ft. Anchor capacities: Toggler SnapToggle (238 lb 3/16 in, 265 lb 1/4 in ultimate in 1/2 in drywall), Hillman hollow-wall anchor ratings (2:1 safety factor on tension and shear), generic packaging figures for plastic, self-drilling and spring-wing anchors. Accessed 2026-10-14.

Drywall weight and screw questions

How much does 5/8 drywall weigh?

70 lb for a 4 × 8 sheet, 106 lb for 4 × 12 — a two-person lift on a ceiling.

How many screws in a pound of drywall screws?

About 240 1¼ in coarse-thread screws — enough for 8 sheets at 16 in.

How many sheets does a bucket of mud cover?

A 4.5 gallon bucket of all-purpose compound finishes about 13 sheets through three coats.

How much weight can a drywall anchor hold?

Rated from 20 lb for a plastic expansion anchor to 240 lb ultimate for a strap toggle, per anchor, in ½ in board — plan on about a quarter of the rating as a working load.

Can I hang a TV on drywall?

Not on drywall alone: a screw in bare board holds about 5 lb. Mount the bracket into studs; use strap toggles only where a stud is impossible and the TV is light.

Tools for the job

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