Glass panels are tempered glass for safety.
Glass panels come in 3 thicknesses, 6 mm, 10 mm for installs with sections over 8 – 10 feet. Glass panels are inserted between a top and bottom rail and are usually on a stub wall for stairs to meet code.
Steel spindles are black or chrome and are available in various styles. They can be round or square. Often they are put into patterns of 1 decorative spindle and 2 or more plain.
Wood spindles are available in plain of fluted. They can be painted or stained. Standard size is 1 5/8 x 1 5/8 inch.