Understanding construction blueprint schedules

A necessary part of the construction blueprint plan is the description of specialized structures called schedules. For example, inspectors want to know how windows and doors fit into the plan of the home.

A description of door and window sizes helps contractors and inspectors know how to build and approve of structures. Below is a photo of the window and door schedule of a house plan. It gives the specifics of the windows and doors used in that plan.

construction blue prints

Next we have beam structures that can be a part of the schedule addendum that shows how the beams are placed in the structure. The grade of the beams indicate how much strength it has so it can span large areas. The photo is fuzzy, but you can see that the grade of the 2×6’s, 2×8’s and 2×10’s are grade 2 or better.

Grade 1 and grade 2 are a standard grade lumber for residential joist and beam construction.

Just FYI, grade 3 and worse usually have big knots and cross grains that make the lumber too weak for joists and beams, but they work fine for other things.

truss blue print

Nailing schedules are quite obvious, but they simply indicate the nail sizes and the spacing between nails. This shows contractors how to build the home and it shows inspectors that the home meets minimum building codes.

nailing schedule blue print

Blueprint schedules help the general contractor, sub-contractor and each person planning and building the home to all better understand how everything fits together. It’s not just about codes and regulations which seem to be a big pain.

It’s really about building a home exactly how the homeowner wants it to be built.

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