plywood - answer-Thin sheets of wood glued together so that the grains are at right angles to one another; an odd number of sheets will be used so that the grain on the front and back will always run the same direction.
MDF - answer-wood particles reduced to fibers in a moderate pressure steam v...
CARPENTRY 2025 QUESTIONS AND ANSWERS
plywood - answer-Thin sheets of wood glued together so that the grains are at right
angles to one another; an odd number of sheets will be used so that the grain on
the front and back will always run the same direction.
MDF - answer-wood particles reduced to fibers in a moderate pressure steam vessel
and then combined with a resin and bonded together under high heat and pressure
(used as a substrate for veneers or laminate)
OSB - answer-Oriented Strandboard: A wood-based panel made by gluing several
layers of wood strands under heat and pressure so that the adjacent layers are
oriented in opposite directions. cheaper than plywood, but not as strong as
plywood, and does not hold nails as well as plywood.
LVL - answer-Laminated Veneer Lumber - a manufactured material composed of
thin layers of lumber veneer pressure-bonded together with grain running in the
same direction, used for joists and beams.
glulam - answer-Plank like section of nominal lumber glued together under pressure
to produce large arches, beam, girders or columns.
engineered panel - answer-Human-made products in the form of large reconstituted
wood sheets.
Girder - answer-A horizontal structural member used to support beams or joists.
Girders are almost always of larger dimension than the members they support.
box sill - answer-a sill for a building frame, composed of a plate resting on the
basement wall and a joist or header at the outer edge of the plate, as well as a
soleplate for the studs resting either directly on the joists or on the rough flooring
Subflooring - answer-covering of plywood sheets that is nailed directly to the floor
joist.
crown - answer-The outermost curve of the bowl in a joist
bridging - answer-Crossed braces used between joists to stabilize them
bearing wall - answer-any wall supporting a floor or the roof of a building
Header - answer-A horizontal structural member used to support other structural
members over openings such as doors and windows.
trimmer joist - answer-joist that receives the end of a header in floor or roof framing
in order to leave an opening for a staircase or chimney etc.
cantilever - answer-A projecting beam anchored without support
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