Pipe designed to transmit the backfill load to the foundation beneath the pipe. Rigid pipe must be supported on the bottom portion of the pipe.
Rim
The edge of a fixture or container.
Rim holes
A series of small holes in the underside of a toilet rim, around the circumference of the bowl. Incoming water flows down into the bowl through these holes, creating a rinse effect or wash over the entire inner surface of the bowl.
Ring porous
A group of hardwoods in which the pores are comparatively large at the beginning of each annual growth ring and decrease in size, more or less abruptly, toward the outer portion of the annual growth ring. The large pores are springwood and the smaller pores are summerwood.
Ring shank
Nails with rings around the shanks, designed for increased gripping power.
Rip
To cut a piece of lumber parallel to the grain.
Rip claw hammer
Rip claw hammers are generally used for framing and ripping jobs. They are available in 16, 20 and 22 through 24 oz. Weights. In addition to the machined, or smooth striking face, specific models come with a milled, or waffled, striking face for rough carpentry.
Rip cut
A rip cut, or ripping, is a straight cut commonly made on table saws and radial arm saws that runs the length of a wood board or with the wood grain.
Rip fence
The rip fence helps guide the workpiece during a straight line cut and is particularly useful for making even rip cuts.
Rip fence storage
The rip fence storage feature can be found on many stationary tools. It provides a convenient storage place for the rip fence.
