| http://www.w3.org/ns/prov#value | - one and one-half by three-sixteenths inch angle and shall be supported by uprights of equal strength.(d) Posts or uprights shall be spaced not more than eight feet center to center.(e) Toeboards shall be not less than four inches in height.(f) Toeboards shall be constructed in a permanent and substantial manner of metal, wood, or other material equivalent thereto in strength.
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