Plywood Unit, Weight & Price Calculator
Build a load line by line and read off three things: how much of it there is in sheets, m², MSF and CBM; what it weighs in kg and lb, and whether that fits a truck or a container; and what it costs in any unit you like. Free, no sign-up, nothing stored, and it prints to PDF.
1 — Panels & quantity
| Thick, mm | Length, mm | Width, mm | Sheets/pack | Packs | Sheets | m² | MSF | CBM (m³) | |
|---|---|---|---|---|---|---|---|---|---|
| 255.82 | 2.7536 | 4.6047 | |||||||
| Total | 5.00 | 110 | 255.82 | 2.7536 | 4.6047 | ||||
2 — Weight & loading
680 kg/m³ is our working figure for Baltic birch. The others are indicative — panel density shifts with glue, ply count and moisture, so use your supplier’s number when it matters.
| Specification | CBM (m³) | kg / pack | lb / pack | Weight, kg | Weight, lb |
|---|---|---|---|---|---|
| 18 mm · 1525×1525 · 5.00 pk | 4.6047 | 626 | 1,381 | 3,131 | 6,903 |
| Total | 3,131 | 6,903 | |||
| Equipment | Payload limit | Used | Utilisation | Spare capacity | Loads |
|---|---|---|---|---|---|
| Truck (trailer) | lb | 6,903 lb | 15% | 38,097 lb · 25.41 m³ | 1 |
| 40 ft container | kg | 3,131 kg | 12% | 22,869 kg · 33.63 m³ | 1 |
These are weight limits only. Whether a load also runs out of space depends on the equipment and how it is stacked — so when utilisation here comes out low, check the cube as well. With panels it is common to fill the deck long before the axles complain.
3 — Price · type into any one cell on a row, the rest convert
| Specification | $ / m³ | $ / MSF | $ / sheet | $ / pack | $ / m² | $ / ft² | Line total |
|---|---|---|---|---|---|---|---|
| 18 mm · 1525×1525 · 5.00 pk | 5,226.38 | ||||||
| Order total | $5,226.38 | ||||||
Everything runs in your browser; nothing is sent anywhere or stored. Figures are indicative — on shipping documents the declared volume governs, and weight depends on the moisture content on the day.
Add a row per specification, the way an order is actually built. Defaults are a 45,000 lb trailer and a 26,000 kg 40 ft container — change them to your own equipment. Runs entirely in your browser; nothing you type is sent anywhere or recorded.
How to convert m³ to MSF, m² and sheets
Two numbers describe a panel, and every other unit follows from them.
area (m²) = length (m) × width (m)
volume (m³) = area × thickness (m)
From there: sheets per cubic meter is 1 ÷ volume, square feet is m² × 10.7639, and MSF — which stands for thousand square feet — is square feet ÷ 1,000.
Price converts the same way, because a price per unit of volume becomes a price per sheet once you know the volume of a sheet:
price/sheet = price/m³ × volume per sheet
price/MSF = price/m³ × 92.903 × thickness (m)
Where plywood conversions go wrong
- MSF is thickness-dependent, m² is not
- A square metre is a square metre at any thickness. A price per MSF is not comparable between 12 mm and 18 mm, because the same 1,000 ft² of surface contains half again as much wood. Comparing two quotes in MSF across different thicknesses is the single most common costing error we see.
- Surface measure, not 3/8-inch basis
- Softwood plywood is sometimes quoted per MSF on a 3/8-inch basis, where the figure is normalised to a reference thickness. Hardwood panels like Baltic birch are quoted on actual surface measure, which is what this tool uses. If a quote looks wildly cheap, check which convention it is on before celebrating.
- Declared volume can beat arithmetic
- Mills and customs sometimes declare a volume that differs slightly from the multiplication — rounding conventions, nominal versus measured thickness. On documents the declared figure governs. Use this tool to plan and to sanity-check, and the paperwork to invoice.
How many sheets in a cubic meter of plywood
If you only need one number, it is probably in here. Sheets per pack are our own warehouse figures, and pack height lands between 390 and 408 mm throughout — which is why a pack is very nearly a constant volume whatever the thickness.
5 x 5 ft — 1525 × 1525 mm · 2.3256 m² · 25.03 ft² per sheet
| Thickness | m³ / sheet | Sheets / m³ | Sheets / pack | m³ / pack | MSF / pack |
|---|---|---|---|---|---|
| 3 mm | 0.00698 | 143.3 | 130 | 0.907 | 3.254 |
| 6 mm | 0.01395 | 71.7 | 65 | 0.907 | 1.627 |
| 9 mm | 0.02093 | 47.8 | 44 | 0.921 | 1.101 |
| 12 mm | 0.02791 | 35.8 | 33 | 0.921 | 0.826 |
| 15 mm | 0.03488 | 28.7 | 26 | 0.907 | 0.651 |
| 18 mm | 0.04186 | 23.9 | 22 | 0.921 | 0.551 |
| 24 mm | 0.05581 | 17.9 | 17 | 0.949 | 0.426 |
| 30 mm | 0.06977 | 14.3 | 13 | 0.907 | 0.325 |
4 x 8 ft — 1220 × 2440 mm · 2.9768 m² · 32.04 ft² per sheet
| Thickness | m³ / sheet | Sheets / m³ | Sheets / pack | m³ / pack | MSF / pack |
|---|---|---|---|---|---|
| 3 mm | 0.00893 | 112.0 | 130 | 1.161 | 4.165 |
| 6 mm | 0.01786 | 56.0 | 65 | 1.161 | 2.083 |
| 9 mm | 0.02679 | 37.3 | 44 | 1.179 | 1.410 |
| 12 mm | 0.03572 | 28.0 | 33 | 1.179 | 1.057 |
| 15 mm | 0.04465 | 22.4 | 26 | 1.161 | 0.833 |
| 18 mm | 0.05358 | 18.7 | 22 | 1.179 | 0.705 |
| 24 mm | 0.07144 | 14.0 | 17 | 1.215 | 0.545 |
| 30 mm | 0.08930 | 11.2 | 13 | 1.161 | 0.417 |
Working the other way is the same arithmetic: one cubic metre of 18 mm 5x5 is 23.9 sheets, and one cubic metre of 12 mm 4x8 is 28.0 sheets. Which of these thicknesses we hold on the floor is on the 5x5 and 4x8 pages, and the inch equivalents are in the thickness guide.
Common plywood conversions, answered
Figures below are for Baltic birch at 680 kg/m³. Use the calculator above for any other specification.
- How many sheets of plywood are in a cubic meter?
- It depends on the panel. One cubic meter is 23.9 sheets of 18 mm 5x5, 35.8 sheets of 12 mm 5x5, 18.7 sheets of 18 mm 4x8 and 28.0 sheets of 12 mm 4x8. Divide 1 by the volume of one sheet — length × width × thickness in metres.
- What does MSF mean in plywood?
- MSF is a thousand square feet of panel surface — M for the Roman numeral 1,000, SF for square feet. It measures area, not volume, so it says nothing about thickness on its own.
- How do I convert CBM to MSF?
- Multiply the cubic meters by 1,000 and divide by the thickness in millimetres, then divide by 92.903. Or the other way: one MSF is 1.115 m³ at 12 mm and 1.672 m³ at 18 mm. MSF is thickness-dependent, which is why it cannot be compared across thicknesses.
- How do I convert MSF to CBM?
- Multiply MSF by 92.903 (the square meters in 1,000 ft²) and then by the thickness in meters. At 18 mm that is 92.903 × 0.018 = 1.672 m3 per MSF; at 12 mm, 1.115 m3.
- How do I convert a price per m³ to a price per sheet?
- Multiply the price per cubic meter by the volume of one sheet. An 18 mm 5x5 sheet is 0.04186 m³, so $1,135/m³ is $47.51 per sheet. Per MSF the same panel is $1,898.01.
- How much does a sheet of plywood weigh?
- For Baltic birch at 680 kg/m³: an 18 mm 5x5 sheet is 28.5 kg (62.8 lb), an 18 mm 4x8 sheet is 36.4 kg (80.3 lb), and a 6 mm 5x5 sheet is 9.5 kg (20.9 lb).
- How much does a pack of plywood weigh?
- A 5x5 pack runs about 626 kg (1,381 lb) and a 4x8 pack about 802 kg (1,767 lb) — and that holds at any thickness, because packs are built to a fixed height of roughly 397 mm rather than a fixed sheet count.
- How many packs fit in a truck or a container?
- By weight: about 32 packs of 5x5 in a 45,000 lb trailer, and about 41 in a 26,000 kg 40 ft container. Space may run out first depending on how it is stacked, so treat these as the weight ceiling rather than the answer.
- How many square feet is a sheet of plywood?
- A 5x5 sheet is 25.03 ft² (2.3256 m²) and a 4x8 sheet is 32.04 ft² (2.9768 m²). Multiply square meters by 10.7639 to get square feet.
- Why is a price per MSF not comparable between thicknesses?
- Because MSF measures surface, not wood. The same 1,000 ft² contains 1.115 m³ at 12 mm and 1.672 m³ at 18 mm — half again as much material for the same MSF. Convert both quotes to a price per m³ before comparing.
Checking a quote against ours
If you have converted a quote and want to know whether it is a good one, send us the spec and the number. We will tell you where it sits — including when it is already keen and you should take it. That answer costs us nothing and is how most of our long-running accounts started.
Found an error in the arithmetic, or want a unit added? Tell us — this page exists to be correct, not to be finished.