A toe rail, aka, "toe board," is a thin strip of material, often metal plate 3"-4" high, on an elevated work surface or catwalk designed to prevent tools and objects from being kicked off, causing a hazard to those below.
The OSHA specification for a "toeboard" per 29 CFR 1910.23 (e)(4) is:
A standard toeboard shall be 4 inches nominal in vertical height from its top edge to the level of the floor, platform, runway, or ramp. It shall be securely fastened in place and with not more than1/4-inch clearance above floor level. It may be made of any substantial material either solid or with openings not over 1 inch in greatest dimension.
See also kick rail.
The OSHA specification for a "toeboard" per 29 CFR 1910.23 (e)(4) is:
A standard toeboard shall be 4 inches nominal in vertical height from its top edge to the level of the floor, platform, runway, or ramp. It shall be securely fastened in place and with not more than1/4-inch clearance above floor level. It may be made of any substantial material either solid or with openings not over 1 inch in greatest dimension.
See also kick rail.