Start with opening identity

Give each opening a reference that survives production, shipping and site. The reference is what the label, the packing list and the installation drawing all point back to.

Size and interface

State whether the size is the structural opening or the frame size, and give the wall or subframe interface. A 10 mm difference in the reveal changes the frame and the fixing.

Opening direction and hardware

Handing, stack side and swing direction are production data. Getting them wrong is expensive because the frame machining changes. State them with a drawing, not with a word.

Glass, finish and quantity

State the make-up you expect and the performance target behind it. Finish should include a reference or a sample, because 'grey' covers a wide range. Quantity per type, not a total.

Minimum schedule columns

ColumnWhy it is neededExample
Opening ref.Traceability through production and siteW01
Width x heightFrame size and glass cutting1200 x 1500 mm
Product typeSeries and hardware selectionCasement, thermal break
Handing / directionFrame machiningRight hand, outward
Glass buildIGU order and weighta project-selected IGU Low-E
FinishCoating orderMatte black, RAL 9005
QuantityProduction planning12

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