Plywood vs MDF Weight: 74 lb vs 97 lb per 3/4-Inch Sheet

A full 4×8 sheet of 3/4-inch MDF weighs roughly 97 lb, while the same size of APA-rated plywood weighs about 74 lb. That gap decides whether you can load the sheet alone, whether a wall-hung cabinet is realistic, and how many sheets fit on a roof rack or in a truck. Below is a weight chart built from APA and manufacturer data, the case where the usual rule flips, and the math to estimate any cut piece.

Plywood vs MDF Weight: The Short Answer

Standard MDF is denser than plywood, so at the same thickness it weighs about 30 to 40 percent more. Here is the density behind that. APA lists 2.3 lb per square foot for its 3/4 plywood category, which works out to about 37 lb per cubic foot. Weyerhaeuser lists its standard MDF at 48.5 lb per cubic foot for panels thicker than 0.551 inch. That is a ratio of about 1.3, not the 1.5 you sometimes see quoted.

Two corrections are worth making up front. First, “MDF weighs 50 percent more” overstates it for standard panels. Second, “MDF is always heavier” is wrong for lightweight MDF, which is a real stock item and is covered below.

4×8 Sheet Weight Chart: Plywood vs MDF

The chart pairs APA plywood weights with an MDF estimate at the same nominal thickness. Plywood figures are APA’s approximate weights for dead-load calculations multiplied by 32 square feet. MDF figures are our own arithmetic from the manufacturer density, so treat them as estimates.

Thickness	APA plywood (per sheet)	Standard MDF, estimated (per sheet)	MDF heavier by
3/8 inch	1.1 psf / 35 lb	1.52 psf / 48 lb	+38%
1/2 inch	1.5 psf / 48 lb	2.02 psf / 65 lb	+35%
5/8 inch	1.9 psf / 61 lb	2.53 psf / 81 lb	+33%
3/4 inch	2.3 psf / 74 lb	3.03 psf / 97 lb	+32%
1 inch	3.0 psf / 96 lb	4.04 psf / 129 lb	+35%

One detail explains part of the gap. A “3/4” plywood panel is actually 23/32 inch (0.719 in) thick in APA’s system, while 3/4 MDF is a full 0.75 inch, so MDF carries slightly more material per sheet before density even enters the picture. At 1/4 inch, Inch Calculator lists softwood plywood at about 22 lb per sheet, and the same density math puts 1/4-inch MDF near 32 lb.

Why Your Sheet Might Not Match the Chart

Search any two plywood weight charts and they disagree. The table below shows the same 3/4-inch, 4×8 size from several sources. Plywood spans about 61 to 75 lb depending on species and type, and APA’s 74 lb is a conservative design number rather than a measured average. MDF spans more than 30 lb once you include lightweight grades.

4×8 sheet, 3/4 inch	Weight	Where the number comes from
APA-rated plywood, 3/4 category	74 lb	APA Form D510 (2.3 psf, a design dead-load figure)
Softwood plywood, 3/4	61 lb	Inch Calculator chart
Hardwood plywood, 3/4	68 lb	Inch Calculator chart
Baltic birch plywood, 3/4	72 lb	Inch Calculator chart
Marine plywood, 3/4	75 lb	Inch Calculator chart
Ultralite MDF, 3/4 (33 lb/ft3)	66 lb	Our estimate from Uniboard density
Standard MDF, 3/4 (48.5 lb/ft3)	97 lb	Our estimate from Weyerhaeuser density
Standard MDF, 3/4, shipping weight	103 lb	Weyerhaeuser 3,210 lb per 1,000 sq ft

Species matters for plywood: Inch Calculator lists hardwood plywood about 6 lb heavier than softwood at 3/4 inch, and marine plywood heavier again. Moisture matters for both, since wood-based panels gain weight as they absorb water. For MDF, the manufacturer grade matters most.

The Exception: Lightweight MDF Beats Plywood

Uniboard’s datasheet describes Ultralite MDF as weighing one third less than standard MDF, with an average density of 33 lb per cubic foot. On a 3/4-inch 4×8 sheet that is about 66 lb, which is below APA’s 74 lb plywood figure. It is sold for cabinetry components, wall partitions, displays and similar work where weight is the constraint.

The catch is that lighter means less fiber. Check the maker’s internal bond and screw-holding numbers before using it for anything that carries load or hangs on a wall, and do not assume it behaves like standard MDF. If a supplier offers “light” or “ultra-light” MDF, ask for the density on the datasheet, because the name alone tells you nothing.

Weight of Cut Pieces You Will Actually Handle

Most projects do not move whole sheets. This chart converts the psf figures to the pieces you cut. All values are estimates for 3/4-inch stock.

3/4-inch piece	APA plywood	Standard MDF (est.)	Ultralite MDF (est.)
Full sheet, 4×8 ft	73.6 lb	97.0 lb	66.0 lb
Half sheet, 4×4 ft	36.8 lb	48.5 lb	33.0 lb
Ripped strip, 2×8 ft	36.8 lb	48.5 lb	33.0 lb
Door or side panel, 24×30 in	11.5 lb	15.2 lb	10.3 lb
Shelf, 12×36 in	6.9 lb	9.1 lb	6.2 lb

A finished cabinet is where this adds up. Six 24×30 inch panels total 30 sq ft, which is roughly 91 lb in standard MDF against about 69 lb in plywood, before hardware, and you still have to lift the assembled box onto a wall cleat or a truck bed.

Lifting a Full Sheet Safely

The CDC’s NIOSH ergonomic guidance puts the maximum for a two-handed lift under ideal conditions at 51 lb, and the recommended limit drops from there as the load gets bulky or awkward. A 4×8 sheet is both. Even APA-rated 3/4 plywood is about 74 lb, and standard MDF is around 100.

• Break the sheet down first. Ripping a 3/4-inch MDF sheet in half gives two pieces near 48 lb each, a far more realistic single-person carry.
• Carry sheets on edge. A carrier handle, or a second person at the far end, keeps your back straight and stops the sheet from dragging.
• Store flat or well supported. Sheets stood on edge without full support can bow, and a falling sheet is a genuine injury risk at these weights.
• Plan the vehicle load. A full sheet is a real fraction of a roof limit; our guide to securing plywood to a roof rack shows sheet weight against typical roof ratings.

How to Estimate the Weight of Any Panel

The formula is area in square feet, times thickness in inches divided by 12, times density in lb per cubic foot. The densities used on this page are about 37 for APA plywood, 48.5 for standard MDF, and 33 for Ultralite MDF.

A worked example: a 2×4 foot panel of 3/4 standard MDF is 8 sq ft, and 8 x (0.75 / 12) x 48.5 comes to about 24 lb. For metric, APA gives 4.88 kg per square meter for each psf. For more tools like this, see our woodworking calculators guide.

When Weight Should Decide Between the Two

Choose plywood, or Ultralite MDF, when the piece will be lifted often, wall-hung, or carried up stairs. Choose standard MDF when the piece stays put and you want a flat, dense paint surface, since the extra 20 to 25 lb per sheet then costs nothing after installation. Weight is only one factor: for strength, moisture and finish, see is plywood better than MDF and the MDF board vs plywood buyer’s guide, and for cost see MDF vs plywood price.

Frequently Asked Questions

How much does a 4×8 sheet of 3/4-inch MDF weigh?

About 97 lb by our estimate from a manufacturer density of 48.5 lb/ft3, and about 103 lb by that same manufacturer shipping weight figure. Lightweight MDF is a different product at about 66 lb.

How much does a 4×8 sheet of 3/4-inch plywood weigh?

APA lists 2.3 psf for its 3/4 category, which is about 74 lb per 4×8 sheet. Published charts put softwood plywood lower, around 61 lb, because species, glue content and moisture change the number.

Is MDF always heavier than plywood?

No. Standard MDF is roughly 30 to 40 percent heavier than the same thickness of plywood, but Ultralite MDF at 33 lb/ft3 works out to about 66 lb per 3/4-inch sheet, lighter than APA-rated plywood.

Can one person carry a full sheet of 3/4-inch MDF?

It is not a good idea. NIOSH sets a 51 lb maximum for a two-handed lift under ideal conditions, and a full 3/4-inch MDF sheet is close to double that. Cut it down or use a second person.

How do I estimate the weight of a cut piece?

Multiply length by width in square feet, then by the psf for that panel: about 2.3 for 3/4 plywood and about 3.0 for 3/4 standard MDF. A 24×30 inch door panel is 5 sq ft, so roughly 11.5 lb in plywood or 15 lb in MDF.

Sources and Method

Plywood weights: APA (The Engineered Wood Association), Panel Design Specification Form D510, Table 13 (approximate weight for calculating dead loads). MDF density and shipping weights: Weyerhaeuser Specifications for Standard MDF Products (July 2016). Lightweight MDF: Uniboard Ultralite MDF technical sheet. Species comparison: Inch Calculator plywood weight chart. Lifting limit: NIOSH Ergonomic Guidelines for Manual Material Handling (2007-131). Every MDF, Ultralite and cut-piece figure on this page is our own arithmetic from those sources, not a scale reading, so real sheets will vary by a few pounds.