Medium Density Fiberboard
Plywood Laminated veneer lumber Particle board Medium density fiberboard High density fiberboard
The 2008 National Electrical Code (NFPA 70) Article 410.136 (B) requires surface mounted luminaires containing a ballast to be listed for mounting on the fiberboard or they must be mounted not less that 1 1/2 inches from the surface of the fiberboard.
Medium Density fiber board is 48 lb. board. High Density Fiberboard is 55 lb. board. Low Density Fiberboard is 38 lb. board. Ultra Light Fiberboard is 33 lb. board.
Well one of them is kind of dense while the other one is not really dense at all.
Medium Density Fiberboard
it is a type of liwuid in tour momma
Medium Density Fiberboard.
MDF= Medium Density Fiberboard
There are three kinds of fiberboard--low-density, medium-density and high-density. All three are made by mixing powdered wood fiber and adhesive, then pressing them in a hydraulic press. Low-density fiberboard is made by compressing a foot-thick pile of fiber to 1/2" thickness. Medium-density fiberboard compresses a foot of fiber to 1/4" thickness, and high-density fiberboard compresses a foot of fiber to 1/8" thickness. Low-density fiberboard is usually coated with asphalt on one side and used as cheap sheathing under siding on houses. Medium-density fiberboard is used for a multitude of purposes, and high-density fiberboard is used for laminate flooring.
it stands for Medium Density Fiberboard
medium-density fiberboard by sIcKbOy123