How Much Does Drywall Weigh?
Weight per sheet, per square foot, and as demolition debris in a dumpster
A standard 1/2-inch 4x8 sheet of drywall weighs about 51 pounds. That's 1.6 pounds per square foot. The 5/8-inch version (used for fire-rated walls and ceilings) comes in at roughly 70 pounds per sheet, or 2.2 lb/ft². Both numbers matter for carrying; for disposal, the per-room total and loose debris density are what determine your dumpster size.
Drywall weight at a glance
Standard 1/2-inch shown. Type X (5/8") runs about 2.2 lb/ft²; lightweight panels are 20-25% lighter. Full breakdown below.
Weight by type and thickness
Drywall weight depends on two things: thickness and core type. Standard gypsum board, Type X (fire-rated), lightweight, and moisture-resistant panels all have different densities even at the same thickness.
| Type | Thickness | lb/ft² | 4x8 sheet |
|---|---|---|---|
| Standard | 1/4" | 1.2 | ~38 lbs |
| Standard | 3/8" | 1.4 | ~45 lbs |
| Standard | 1/2" | 1.6 | ~51 lbs |
| Standard / Type X | 5/8" | 2.2 | ~70 lbs |
| Lightweight | 1/2" | ~1.25 | ~40 lbs |
| Lightweight | 5/8" | ~1.65 | ~53 lbs |
| Moisture-resistant | 1/2" | ~1.5 | ~48 lbs |
Type X is fire-rated 5/8" board with glass fibers mixed into the gypsum core. It weighs the same as standard 5/8" (about 2.2 lb/ft²) because the fire resistance comes from the glass reinforcement, not extra mass.
Installed walls weigh more than raw sheets. The numbers above are for bare gypsum board. Once it's on a wall with three coats of joint compound on every seam, primer, paint (often multiple layers over the years), and screws every 12 to 16 inches, the effective weight climbs to roughly 1.7 to 2.0 lb/ft² for 1/2-inch and 2.2 to 2.5 lb/ft² for 5/8-inch. Our kitchen and bathroom calculators use these higher demolition figures because they're estimating what actually lands in the dumpster, not what left the factory.
Sheet weight by panel size
Most residential work uses 4-foot-wide panels in 8, 10, or 12-foot lengths. Commercial jobs sometimes use 54-inch-wide boards. Here's what each size weighs for the two thicknesses you'll see on 95% of jobs.
| Panel size | Area (ft²) | 1/2" standard | 5/8" standard |
|---|---|---|---|
| 4' × 8' | 32 | 51 lbs | 70 lbs |
| 4' × 10' | 40 | 64 lbs | 88 lbs |
| 4' × 12' | 48 | 77 lbs | 106 lbs |
| 4'6" × 12' | 54 | 86 lbs | 119 lbs |
What this means when you rent a dumpster
Broken drywall debris weighs about 467 pounds per cubic yard when tossed loose into a container (EPA figure; some state C&D studies put it closer to 500 lb/cy for mixed demolition drywall with compound and paint still attached). Either way, drywall is volume-limited, not weight-limited: you'll fill the space before you come close to the weight cap.
We recommend skipping the weight estimate entirely for most single-room remodels. A bathroom demo produces maybe 400 lbs of drywall; a kitchen, 500. A standard 10-yard dumpster with a 2-ton allowance can absorb that without thinking. Where weight starts to matter is a full-floor gut or whole-house demo, where you might tear out 150 to 300 sheets (7,500 to 21,000 lbs). Even then, the volume of all that broken board usually forces a second container before the weight does.
One real exception: water-damaged drywall. Gypsum absorbs moisture aggressively. Saturated board from a flood or long-term leak can weigh two to three times its dry weight. If you're pulling wet drywall from a basement, plan for the extra tonnage.
Disposal note: most landfills accept drywall in a mixed C&D load. Some regions have gypsum recycling programs that require clean, separated drywall. Painted drywall is almost always accepted; drywall with lead paint (pre-1978 homes) is not. Check your hauler's restrictions before loading.
Where these numbers come from
No single government standard sets drywall weight (it varies by manufacturer and product), so per-sheet figures come from the industry specification cross-checked against the three major North American manufacturers. The loose-debris density comes from the EPA's C&D conversion factors, and since drywall is a soft, flat material that breaks into predictable chunks, that factor matches real dumpster weights.
- Per-sheet and per-ft² weights: Gypsum Association GA-235-2023, "Gypsum Board Typical Mechanical and Physical Properties." The GA is the trade body representing USG, National Gypsum, CertainTeed, American Gypsum, and Georgia-Pacific. These weight-per-unit-area figures are consistent with ASTM C1396/C1396M (the governing specification for gypsum board).
- Loose debris density (467 lbs/yd³): U.S. EPA Volume-to-Weight Conversion Factors (2016), "Gypsum board (drywall), clean or demolition" row. Cross-checked against Contra Costa County (CA) C&D conversion table, which independently lists 467 lb/cy.
Estimate your project
These calculators size a dumpster for the full demolition scope, including drywall and everything else.
Common questions
How much does a 4x8 sheet of drywall weigh?
About 51 pounds for standard 1/2-inch, about 70 pounds for 5/8-inch. Lightweight 1/2-inch panels run closer to 40 pounds per sheet. These are the three products you'll find at most building supply stores. If you're doing overhead ceiling work, the 10-pound difference between standard and lightweight is worth the upcharge.
How much does 5/8 drywall weigh per square foot?
About 2.2 pounds per square foot for both standard and Type X 5/8-inch board. Lightweight 5/8" runs about 1.65 lb/ft². The 5/8-inch thickness is required by code for garage-to-house walls and most ceilings in attached garages because of its one-hour fire rating.
Is lightweight drywall actually lighter?
Yes, about 20 to 25 percent lighter. A lightweight 1/2-inch 4x8 sheet weighs roughly 40 pounds versus 51 for standard. The weight savings comes from a foamed gypsum core that uses less raw material per cubic inch. Lightweight boards meet the same ASTM performance specs as standard panels and are code-accepted everywhere standard drywall is. The tradeoff: slightly lower sound attenuation per layer, which only matters in shared-wall assemblies.
How much drywall can I fit in a dumpster?
Volume, not weight, is the constraint. Broken drywall debris weighs about 467 lbs per cubic yard. A 20-yard dumpster could hold over 9,000 lbs of drywall at full pack, but that's 4.7 tons and well above a typical 3-ton included allowance. In practice, broken drywall packs at maybe 50 to 60 percent density, so a full 20-yard container holds roughly 2.3 to 2.8 tons of drywall. That's within the standard allowance. A 10-yard handles a single-room remodel; a 20-yard covers a multi-room gut.
Disclaimer: These weights reflect industry-standard specifications and published manufacturer data. Actual weight varies by manufacturer, product line, and moisture exposure. For loads near a container's weight limit, confirm your hauler's specific allowance before loading. Homes built before 1978 may have lead paint on drywall surfaces; consult a certified lead abatement professional before demolishing.