It depends on the density of the plywood. This site shows some plywood densities in kg/m^3. Let's say your plywood is 500 kg/m^3 (which is at the low end of the plywood densities isted on that page). Converting the dimensions of the plywood to meters gives the following:
height: 4 ft = 4 ft * (12 in/ft) * (2.54 cm/in) * (1m/100cm) = 1.22 m
width: 8 ft = 8 ft * (12 in/ft) * (2.54 cm/in) * (1m/100cm) = 2.44 m
thickness: 18 mm * (1m/1000mm) = .018 m
The volume of the plywood is height * weight * thickness = 1.22 * 2.44 * .018 = .0535 m^3.
Weight is density * volume. So, at 500 kg/m^3, the plywood would weigh: 500*.0535 = 26.8 kg. 1 kg is approximately 2.2 pounds, so 26.8 kg is 26.8 kg * (2.2 lb/kg) = 58.9 pounds. If, however for example, your plywood is 700 kg/m^3, it would weigh 40% more, or 82.5 pounds.
About 50 pounds
80 sheets
Four sheets of 4' by 8' plywood will be required to cover a shed roof measuring 10' by 12'. Three of the sheets can be used as is, but one of the sheets will need to be cut to fit.
2.973 square meters
13 ft by 23 ft = 299 ft2 and one standard sheet of plywood is 4 ft by ft = 32 ft2. 299 / 32 = 9.34 sheets, so you will need to purchase 10 sheets of plywood.
2400 per sheet 8*4=32 sq feet.
I NEED THE WEIGHT OF 7/16 OSB PLYWOOD One sheet will weight 47 lbs.price
It depends what the "ply" value is ... the number of layers glued together. For instance, 1/2" plywood is going to be lighter then 3/4" plywood. A common rule of thumb is a 4x8 foot sheet of 1/4" fir plywood weighs 25 pounds. There are 32 square feet in a sheet, so a square foot of 1/4" fir plywood weighs about 0.78 pounds. Since 1/2" is twice as thick as 1/4", 1/2" fir plywood weighs twice as much, or 1.56 lbs, and 3/4" three times as much, or about 2.34 lbs. Fir plywood is common, but other species are available. Weight varies considerably between species of wood, so be aware the weight of plywood of different species can be different.
The easiest way to determine an honest weight of a 4' x 8' sheet of plywood? 20-25 pounds per 1/4" of thickness. 3 pounds per square foot per inch of thickness according to APA Plywood Design Specification.
when asking this question you first need to take into account that plywood comes in different thicknesses therefore weight per particualr thickness of sheet plywood will vary-- in my opinion/ without fact and research / a sheet of 1/2 inch plywood may way about 16 lbs. while a 3/4 inch plywood sheet may way 70 lbs.
About 50 pounds
25 lbs.
that depends on the type of plywood 3/4" ranges from about 20.00 to about 50.00 a sheet (cheap flooring to higher end finish plywood and marine grade pressure treated) in my area. . .check around.
The birch veneer is actually accounts for a small portion of the plywood's density. The core layers are more important. The Purebond plywood that I see at my local home despot is probably from Columbia Forest Products. According to their website, my plywood on the east coast is composed of a combination of aspen and fir layers. Birch has a density of 670 kg/m3, Aspen 420 kg/m3, and Fir 530 kg/m3. If you don't know what kg/m3 means, I did an estimate on the math. Guessing that the board is 2/3 Fir and 1/3 Aspen, and neglecting the millimeter of birch on top, the weighted average density is 494 kg/m3 or about 31 lb/ft3. If you still don't know what lb/ft3 means, basically a 4 by 8 sheet of plywood, 3/4" thick, should weight about 59 pounds. A half inch thick sheet, should weight about 39 pounds; and a quarter inch thick sheet should weigh in at around 18 pounds.
You need 1 1/4" of subfloor. Typically it is 3/4" of plywood or OSB and 1/2" of mudbase or cement board.
No, plywood alone is not strong enough for ceramic tile. These floors require a very sturdy subfloor at least 1 1/4" thick before the tile. This requires either using cement board or a pored mudbed.
157 pounds