Building materials · Reference

Standard Drywall Sheet Sizes: Dimensions & Thickness Chart

Standard drywall sheets are 4×8 ft (1220×2440 mm), also sold in 4×10 and 4×12 ft. Common thicknesses are 1/4, 3/8, 1/2 and 5/8 in (6.4–15.9 mm); EN 520 boards use 9.5, 12.5 and 15 mm.

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Drywall sheets are specified by length × width (face dimensions), with thickness given separately.

Key facts

The standard drywall sheet is 4 × 8 ft (1220 × 2440 mm); 4 × 10, 4 × 12, and up to 4 × 16 ft lengths are also standard stock sizes (Gypsum Association GA-223-04).
Four thicknesses cover most jobs: 1/4 in (6.4 mm), 3/8 in (9.5 mm), 1/2 in (12.7 mm), and 5/8 in (15.9 mm) — 1/2 in is the default for single-layer residential walls and ceilings.
5/8 in (15.9 mm) Type X drywall is required for one-hour fire-resistance-rated assemblies, such as the wall separating an attached garage from living space.
Standard 1/2 in drywall weighs about 1.25–1.6 lb/ft² (6.1–7.8 kg/m²) depending on lightweight vs. regular core; 5/8 in Type X weighs about 2.2–2.3 lb/ft² (10.7–11.2 kg/m²).
Outside North America, EN 520 Type A plasterboard is sold metric — typically 1200 mm wide × 2400/2700/3000 mm long, in 9.5, 12.5 (most common) and 15 mm thicknesses; China follows GB/T 9775 (2000/2400/3000 × 1200 mm).

Standard drywall sheet sizes — North America

Size (nominal)	Width	Length	Typical use
4 × 8 ft	4 ft (1219 mm)	8 ft (2438 mm)	Most common; standard for residential walls, easiest for one person to handle
4 × 10 ft	4 ft (1219 mm)	10 ft (3048 mm)	Reduces horizontal seams on 9 ft ceilings
4 × 12 ft	4 ft (1219 mm)	12 ft (3658 mm)	Common in commercial work and open/tall walls
4 × 14 ft	4 ft (1219 mm)	14 ft (4267 mm)	Special-order length for tall walls
4 × 16 ft	4 ft (1219 mm)	16 ft (4877 mm)	Longest standard length; minimizes joints
54 in × 12 ft	54 in (1372 mm)	12 ft (3658 mm)	Extra-wide option for some 1/2 in and 5/8 in Type X panels

Source: Gypsum Association — GA-223-04, Gypsum Panel Products: Types, Uses, Sizes, and Standards (2004)

Standard drywall sizes — Metric / EN 520 (Europe & international)

Thickness	Width	Length options	Standard
9.5 mm (≈3/8 in)	900 / 1200 mm	1800 / 2400 mm	EN 520 Type A
12.5 mm (≈1/2 in) — most common	900 / 1200 mm	1800 / 2400 / 2700 / 3000 mm	EN 520 Type A
15 mm (≈5/8 in)	900 / 1200 mm	1800 / 2400 mm	EN 520 Type A

Source: Knauf Wallboard Data Sheet (BS EN 520:2004+A1:2009 Type A) (2020)

Drywall thickness: typical use & panel weight

Thickness	Typical use	Weight (approx.)	Standard
1/4 in (6.4 mm)	Sound-control layer in double-layer walls; resurfacing; short-radius curves	1.1–1.2 lb/ft² (5.4–5.9 kg/m²)	ASTM C1396
3/8 in (9.5 mm)	Double-layer walls & ceilings; remodeling over old surfaces; curved walls	1.3–1.4 lb/ft² (6.3–6.8 kg/m²)	ASTM C1396
1/2 in (12.7 mm)USG UltraLight 1.25 lb/ft²; National Gypsum Regular 1.6 lb/ft².	Standard single-layer residential walls & ceilings — most common in North America	1.25–1.6 lb/ft² (6.1–7.8 kg/m²)	ASTM C1396
5/8 in (15.9 mm) — Type X	One-hour fire-resistance-rated assemblies (e.g. garage-to-house wall); commercial partitions	2.2–2.3 lb/ft² (10.7–11.2 kg/m²)	ASTM C1396
9.5 / 12.5 / 15 mm — EN 520 Type AKnauf cross-checked against Siniat GTEC Standard Board.	EU/international: 9.5 mm lining, 12.5 mm standard, 15 mm higher-performance	6.0–6.1 / 8.0–8.1 / 10.0–10.1 kg/m²	EN 520:2004+A1:2009

Source: Gypsum Association — GA-223-04, Gypsum Panel Products: Types, Uses, Sizes, and Standards (2004)

Put these numbers on the product photo

A spec table only helps if the buyer reads it. Many don't — shoppers routinely try to judge a product's size straight from the images, and wrong size or fit is the most-cited reason things get returned. The fix is to mark the real dimensions on the photo itself, where the buyer is already looking.

SizeMarker snaps dimension lines to the drywall (gypsum board)'s edges and exports at Amazon or Alibaba size, so the measurement is accurate and legible — not a guess typed over the picture. That answers the size question up front and cuts pre-sale questions and size-driven returns.

FAQ

What is the standard size of a drywall sheet?

The standard drywall sheet is 4 ft × 8 ft (1220 × 2440 mm). 4 × 10 ft and 4 × 12 ft sheets are also widely stocked, and lengths up to 4 × 16 ft are available by special order (Gypsum Association GA-223-04).

How thick is standard drywall?

Standard drywall thickness is 1/2 in (12.7 mm) for most residential walls and ceilings. Other standard thicknesses are 1/4 in (6.4 mm), 3/8 in (9.5 mm), and 5/8 in (15.9 mm), which is required for one-hour fire-rated assemblies.

How much does a sheet of 1/2 inch drywall weigh?

A 4 × 8 ft sheet of standard 1/2 in drywall weighs roughly 40–51 lb (about 1.25–1.6 lb/ft², or 6.1–7.8 kg/m²), depending on whether it's a lightweight or regular-core panel.

What's the difference between US drywall and EN 520 plasterboard sizes?

US drywall is sold in feet (4 × 8, 4 × 10, 4 × 12 ft) with imperial thicknesses (1/4–5/8 in) under ASTM C1396. EN 520 plasterboard is sold in millimeters (commonly 1200 × 2400/2700/3000 mm) at 9.5, 12.5 or 15 mm thickness.

What thickness of drywall is fire-rated?

5/8 in (15.9 mm) Type X drywall is the standard fire-rated thickness, used to achieve one-hour fire-resistance ratings in walls and ceilings, such as garage separation walls (National Gypsum Gold Bond Fire-Shield, ASTM C1396).

Sources & method

Every figure on this page is traced to a named source, linked under each table. Standard sizes come from published standards and established industry references; where a size is a typical range or varies by manufacturer, we say so. Sizes vary by region, model and revision — treat these as the standard reference, and confirm the exact spec of the item you are selling.

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