B19 · Specification Guide
How to Specify Door Frames, Jamb Width and Architraves for Bulk Interior Door Orders
A technical buying guide for contractors and importers preparing door schedules, wall thickness details, frame profiles and RFQs for bulk interior door orders.
Direct Answer
For bulk interior door orders, buyers should specify the finished wall thickness, frame depth, jamb width, architrave coverage, door leaf size, opening direction and hardware preparation before asking for a final quote.
Why frame details affect the whole order
The door leaf is only one part of the opening. If the frame depth, jamb width or architrave profile is wrong, the installation team may face gaps, exposed wall edges, wrong trim coverage or delayed handover.
Confirm finished wall thickness first
Finished wall thickness should include plaster, tile, wall panel or other final surface layers. Do not rely only on structural wall thickness when specifying frames for apartments, hotels or commercial interiors.
Jamb width and frame depth
Jamb width must match the finished opening condition. Some projects use fixed frames, while others need adjustable frames. Buyers should confirm tolerance, installation method and whether the frame is supplied assembled or knock-down.
Architrave and casing coverage
Architraves cover the joint between frame and wall. The width, thickness and profile should be reviewed with the interior design style and site tolerance. Narrow trims can look cleaner but leave less room to cover wall variation.
RFQ checklist for frame packages
- Door leaf size and thickness
- Finished wall thickness
- Frame material and finish
- Jamb width and frame depth
- Architrave width, profile and side coverage
- Hinge, lock and handing requirements
- Whether frames are assembled or knock-down
- Packing labels by opening, floor or room
Buyer questions
Jamb width is the frame depth needed to cover the finished wall thickness around the opening.
Send both if available. Rough opening helps review installation space, while leaf size helps confirm the actual door panel.
The frame or jamb supports the door leaf; the architrave or casing covers the joint between the frame and the wall finish.
Yes, but the packing method should be coordinated by opening mark, floor or room to reduce site sorting errors.
Related buyer guides
These supporting guides answer the specification questions buyers usually raise before requesting a container quote.
Related apartment door selection guide
For apartment buyers preparing repeated unit schedules, connect frame and jamb decisions with the apartment interior door selection guide.