A thicker door changes more than the length of the fixing screws. For the TOPTEK TKAM9200 platform, the standard door thickness is 1-3/4 in. (44.5 mm). Specify the finished thickness when ordering for a thicker leaf, together with the lock function and furniture. The cylinder, guard, spindle and connecting parts must work as one assembly.
For door manufacturers and hardware distributors, this makes thickness a purchasing decision before the sample is built. Start with the TOPTEK ANSI mortise-lock range, then define the complete configuration for each door construction.
Give TOPTEK the finished door section
Measure between the faces on which the furniture will sit, including permanent facings. Show the lock’s position within that section. An additional facing on the outside can change the cylinder-side connection without adding the same distance on the inside.
Keep door thickness separate from backset. TKAM9200 has a 2-3/4 in. (70 mm) backset; this locates the operating axis from the door edge. It does not describe the distance through the leaf or select a spindle length. A purchase order needs both dimensions when they affect the supplied assembly.
Select the cylinder and guard as a pair
TOPTEK offers named cylinder-guard options for the TKAM9200 accessory package. These give the enquiry a concrete starting point: record the proposed guard reference and cylinder length, then match their position to the selected trim and lock interface.
| Guard | Nominal size | Listed cylinder pairing |
|---|---|---|
| CG001 | 46.2 × 7.1 mm | 1-1/8 in. mortise cylinder |
| CG002 | 46.2 × 11.2 mm | 1-3/8 in. mortise cylinder |
| CG003 | 46.2 × 13.5 mm | Longer mortise-cylinder configurations |
| CG004 | 46.2 × 17.5 mm | Longer mortise-cylinder configurations |
The table identifies accessory choices; it is not a door-thickness conversion chart. A larger guard does not automatically make a particular cylinder fit a thicker door. Cylinder length, cam interface, furniture build-up and the lock’s position need to agree. Specify the finish with the guard so the visible parts form a coordinated set.
Keep the spindle and trim in the same quotation
TKAMEC9200 escutcheon trim and TKAMRR9200 round-rose trim provide different furniture layouts. Name the exact selection on each face rather than requesting an unspecified “thick-door kit.” Include any thumbturn required by the lock function.
The spindle must connect the selected levers to the follower with the engagement required by the assembly drawing. The fixing set must secure the furniture without bottoming out or interfering with moving parts. Agree those details with TOPTEK from the door section; choosing longer screws alone leaves the operating connections unresolved.
Use one assembled sample to settle the order
For a nonstandard thickness, assemble the proposed package on the intended door construction. Fit the cylinder, guard, spindle, both furniture sets and any thumbturn. Check that the furniture seats fully and that the selected function operates after the fixings are secured.
Retain the accepted parts list with the sample and drawing revision. For a distributor ordering several thicknesses, assign each distinct assembly its own reference and quantity. This gives the next order a reproducible specification instead of a request to recreate an unlabelled sample. TOPTEK’s quality-management information provides the wider production context; the agreed dimensions and operations define what to check for this order.
Where the project requires a listed fire or security configuration, confirm that the selected door construction and accessory arrangement are within the applicable documentation. Dimensional fit alone does not establish that scope.
Request a TKAM9200 thickness configuration
Send TOPTEK your finished door section for a configuration quotation. Include the thickness range, lock position, function, EC or RR furniture, cylinder/keying requirement, finish and quantities. State whether the quotation should include the cylinder, guards and all connecting parts. Request an itemised proposal and representative sample for that assembly.
Frequently Asked Questions
What is the standard TKAM9200 door thickness?
The standard door thickness is 1-3/4 in. (44.5 mm). For a thicker door, specify the finished thickness and submit the section with the selected function and furniture.
Does a CG004 guard automatically solve a thick-door installation?
No. CG004 is a named guard option for longer cylinder configurations. Its suitability depends on the cylinder, trim, lock position and operating interface of the complete assembly.
What should a thickness sample include?
Include the selected lockcase, both furniture sets, spindle, fixings, cylinder and guard, plus any required thumbturn, fitted to the intended door construction.