Instead of one basis-of-design product, the section lists several acceptable manufacturers. Any of them can be bid without a substitution request.
If you are not on the list, you need a substitution, or an addendum that adds you.
Why it matters to manufacturers
Getting onto the list before the spec is issued is the cheapest win there is. Watching which architects list which brands tells you who to visit.
Related terms
Basis of designThe product a design was built around, named in the spec as the reference other products are measured against.Substitution requestA formal request to use a product other than the one specified, reviewed by the architect or engineer.AddendumA written change to the bid documents issued before bids are due.
Find every “or equal”,
before bid day.
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