In access matting terms, Paradox defines hardwood as “any wood with a Janka Hardness Test (See glossary definition) rating at or above red oak.” Hardwood mats supplied by Paradox are set to meet this definition. Part of the swamp mat family of high quality oak (or harder) access mats, and another name for oak mats. Paradox guarantees 100% hardwood in our hardwood mats.
“Hardwood” mat selection can be difficult by the practice of some suppliers of using species of hardwoods that are softer than oak. Technically, “hardwood” comes from broad-leaved, deciduous trees. The timber from some of these “hardwood” trees can be softer than some softwoods. ie: Gum, Aspen, Sycamore.
HDPE Composite Mat
HDPE (High Density Polyethylene) is part of the polyethylene family. It is a solid one-piece moulded mat, made from recycled or virgin HDPE. These mats are traditionally lighter than wood mats.
Heavy equipment Mat
A generic term that applies primarily to Crane mats. Crane mats are used underneath critical heavy loads. However, rig mats/access mats are sometimes known to be used in this application.
Hollow HDPE Composite Rig Mat
Part of the plastic mat family, also known as an engineered Hollow rig mat. A specialty lightweight heavy-duty plastic mat. Chemical spill-resistant, non-water absorbing material.
Janka Hardness Scale
Ranking of average Janka Hardness Test values using ASTM D 1037-12 testing methods. The scale shows the ranking of wood typically from hardest on the top of the scale to softest at the bottom.
Janka Hardness Test
The Janka test measures the force required to embed a .444-inch steel ball into the wood by half its diameter. Usually measured in lbf (Imperial units) or kgf, N, or kN (SI units).
Another name for a laminated mat would be a 3-ply mat, CLT or in some cases rig mat. Generally speaking, when it comes to mats, laminated mats refer to the stacking of timbers perpendicular to each other and either bolting or gluing them together for strength. In the case of rig mats, they are made up of boards parallel on edge, nailed and glued to form a billet which is inserted in the steel frame of the rig mat.
Logging mats are specifically designed to be handled by logging equipment. These mats look like a typical crane mat except for a reinforced slot which allows knuckle boom loaders or skidders to move the mats with ease.
Shortened name for any industrial access mat type. A reinforced slab of different dense materials used as the supporting base of load support, road ways, etc. A tool for providing a slab-like footing surface.
The combination of a reinforced member (metal bars, bamboo, etc.) confining geosynthetic fabric in a portable mat, that can be rolled up for ease of transport and deployment. A lightweight, light-duty flexible mat suitable for distributing loads over firm ground to avoid rutting. They are not commonly used for access matting in soft ground conditions.
A swamp or bog consisting of a mixture of water and partly dead vegetation, frequently covered by a layer of mosses. In Paradox terms, deep muskeg is the epitome of ‘Mud-Ugly’.
Part of the swamp mat family of high quality access mats.
Paradox specifies that our oak mats be 100% ‘oak or better’ in hardwood grade, meaning a minimum 70% of the wood in our mats is white or red oak, but up to 30% can be composed of woods harder than oak such as beech, hickory, and pecan.