1 1/8 inch OSB Sheet Weight

4 × 8-foot sheets: 1–20 weight table

Totals multiply the unrounded sheet estimate. Values below are rounded to one decimal for readability and exclude packaging, pallets, coatings, and other cargo. Density ranges are model inputs, not guaranteed shipping-weight bounds.

1 1/8 in OSB · exact 4 × 8 ft
Sheets	Total lb	Total kg	Range lb	Range kg
1	119.9	54.4	112.4–127.4	51.0–57.8
2	239.7	108.7	224.7–254.7	101.9–115.5
3	359.6	163.1	337.1–382.1	152.9–173.3
4	479.4	217.5	449.5–509.4	203.9–231.1
5	599.3	271.8	561.9–636.8	254.9–288.8
6	719.2	326.2	674.2–764.1	305.8–346.6
7	839.0	380.6	786.6–891.5	356.8–404.4
8	958.9	434.9	899.0–1,018.8	407.8–462.1
9	1,078.8	489.3	1,011.3–1,146.2	458.7–519.9
10	1,198.6	543.7	1,123.7–1,273.5	509.7–577.7
11	1,318.5	598.1	1,236.1–1,400.9	560.7–635.4
12	1,438.3	652.4	1,348.4–1,528.2	611.6–693.2
13	1,558.2	706.8	1,460.8–1,655.6	662.6–751.0
14	1,678.1	761.2	1,573.2–1,782.9	713.6–808.7
15	1,797.9	815.5	1,685.6–1,910.3	764.6–866.5
16	1,917.8	869.9	1,797.9–2,037.6	815.5–924.3
17	2,037.6	924.3	1,910.3–2,165.0	866.5–982.0
18	2,157.5	978.6	2,022.7–2,292.4	917.5–1,039.8
19	2,277.4	1,033.0	2,135.0–2,419.7	968.4–1,097.6
20	2,397.2	1,087.4	2,247.4–2,547.1	1,019.4–1,155.3

How this estimate is calculated

The dimensions are 1.2192 m × 2.4384 m × 0.028575 m. Multiply them to obtain 0.084950540 m³. Multiplying by 640 kg/m³ gives 54.368345 kg per sheet, then divide by 0.45359237 for pounds. The area is 32 ft²; the representative weight per square foot is 3.7 lb/ft².

The selected density model is 640 kg/m³ with 600–680 kg/m³ reference variation, from European Panel Federation: OSB. Representative density is the midpoint of the published 600–680 kg/m³ range. Check your supplier's exact panel weight when that information is available.

Compare another sheet size

At the same thickness and density, a 4 × 10-foot sheet is 149.8 lb (68.0 kg), 25% more than a 4 × 8. An exact 5 × 5-foot sheet is 93.6 lb (42.5 kg), with 25 rather than 32 square feet of area. Actual metric stock sizes can be slightly different. Use custom dimensions for the manufacturer's measurements.

Thickness and density scale weight linearly in this model. A nominal inch label is not automatically converted to a nearby metric product: 1 1/8 in means 28.575 mm here. The example is a volume calculation, not a promise that this exact material, thickness, and sheet size are sold together.

Pickup payload reference

Illustrative reference values only — not your truck's rated capacity. Compare the representative sheet total with 1,000 / 1,500 / 2,000 lb. Passengers, tools, accessories, packaging, and other cargo also use payload. Check your vehicle's actual available payload and the high weight estimate.

Sheet total versus reference values
Reference	Used by sheets	Difference
1,000.0 lb	239.7%	Over by 1,397.2 lb
1,500.0 lb	159.8%	Over by 897.2 lb
2,000.0 lb	119.9%	Over by 397.2 lb

This reference comparison uses 20 sheets. The table above gives each smaller quantity. Check the high-density total, passengers, equipment, and your own vehicle documentation before loading.

Frequently asked questions

Does this include water or a surface finish?

No added moisture or coating allowance is applied. The source density is the reference model; rain-soaked panels, laminate, or a different wood core need product-specific information.

Why can my store list a different weight?

Nominal thickness, actual dimensions, core construction, and moisture can differ. Use the exact supplier's documented sheet mass when available instead of assuming this reference model matches that product.

Other osb thicknesses

Read the complete calculation and handling guide, check all density references, or browse every worked estimate.