Generally, standard contract surety bond risks (we refer to them as “sticks and bricks”), fall into three classes.
A-1 Contracts
Arms, generators, radio towers, tree removal, computers, softward, fire alarms, ornamental work, scaffolding, water towers, lighting, and resurfacing of existing roads/paved areas. (Most service contracts fit into this category.) These are also known as “supply and maintenance” contracts.
B Contracts
Vertical projects. Class B includes most building and sub-trade construction work associated with the completion of buildings. Dams and locks, sewers, tunnels, power lines, fiber optic, etc., are other examples.
A Contracts
Bridges, curbing, guttering, highways, airport runways, roofing, siding, parks, and machinery made to special order.