Hardwoods Hardwoods Dragon Ply Echowood Rely-A-Form Hardwood Lumber Plywood Overlay Products


		Products Overview

		Hardwood Lumber
		Grades
		Species
		Comparative Physical Properties

		Sheet Goods
		Grades
		Panel Product Characteristics
		Core Properties

		Echo Wood
		Specifications
		Echo Wood Picture Gallery
		Interactive Design Application

		Dragon Ply

		Specialty Products

		Red Grandis

		O2 BAMBOO
		O2 BAMBOO Picture Gallery

		RELY-A-FORM Concrete-Forming Products

		Glossary

The most common cores are:

Sheet Goods - Core Properties, Veneer Core, Lumber Core, MDF Core, Particleboard Core

Panel Type	Flatness	Visual Edge Quality	Surface Uniformity	Dimensional Stability	Screw Holding	Bending Strength	Availability
Industrial Particleboard Core (Medium Density)	Excellent	Good	Excellent	Fair	Fair	Good	Readily
Medium Density Particleboard (MDF)	Excellent	Excellent	Excellent	Fair	Good	Good	Readily
Veneer - All Hardwood	Fair	Good	Good	Excellent	Excellent	Excellent	Readily
Veneer - All Softwood	Fair	Good	Fair	Excellent	Excellent	Excellent	Readily
Lumber - Hardwoods and Softwoods	Good	Good	Good	Good	Excellent	Excellent	Limited
Standard Hardboard	Excellent	Excellent	Excellent	Fair	Good	Good	Readily
Tempered Hardboard	Excellent	Good	Good	Good	Good	Good	Limited
Moisture Resistant Particleboard	Excellent	Good	Good	Fair	Fair	Good	Limited
Moisture Resistant MDF	Excellent	Excellent	Good	Fair	Good	Good	Limited
Fire Resistant Particleboard	Excellent	Fair	Good	Fair	Fair	Good	Limited
Isoboard	Excellent	Good	Good	Fair	Good	Good	Limited
NOTE: Various characteristics above are influenced by grade and thickness of the core and specific gravity of the core species. Visual Edge Quality is rated before treatment with edge bands or fillers, and Visual Edge Quality for lumber assumes the use of "clear edge" grade. Surface Uniformity has a direct relationship to the performance of fine veneers placed over the surface. Dimensional Stability is usually related to exposure to wide swings in relative humidity. Screw Holding and Bending Strength are influenced by proper design and engineering.