How to Patch a Doorknob Hole With a Dutchman | This Old House

This Old House general contractor Tom Silva installs an undetectable wood patch in an old door. (See below for a shopping list and tools.)

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Kevin visited an architectural salvage shop to learn about antique full-mortise locksets for interior doors. Later, back in the workshop, Tom showed Kevin a few reproduction doorknobs and locksets designed to look like antiques. Then, to install the antique doorknobs, Tom showed Kevin how to patch a 2⅛ inch hole in the face of the door.

Shopping List:
3/4-inch medium-density fiberboard (MDF) [https://amzn.to/30aM5LG], used to make routing template
1/2-inch pine board [https://amzn.to/2VOAOl6], for making Dutchman patch
carpenter's glue [https://amzn.to/2YlFiNQ]

Tools List for Patching a Doorknob Hole With a Dutchman
screwdriver [https://amzn.to/2LzfKLl]
try square [https://amzn.to/2WCzUoU]
clamps [https://amzn.to/2vMCRaC]
plunge router [https://amzn.to/2JwmxTt] fitted with upward-spiral bit [https://amzn.to/2PXCGCu] and guide bushing [https://amzn.to/2JbNgFI], used to rout recess in door for new wood patch
hammer [https://amzn.to/2Hbg6Ui] and 3/4-inch wood chisel [https://amzn.to/3045BcZ], for squaring up routed corners
miter saw [https://amzn.to/2Jt4jlW]
hand plane [https://amzn.to/2JedQOr], for planing the Dutchman patch
random-orbit sander [https://amzn.to/2LxeAA8]

Kevin met with Bill Raymer, the owner of Restoration Resources of Boston [https://www.restorationresources.com/] to learn about antique doorknobs and locksets.

The reproduction hardware that Tom displayed in the workshop is manufactured by Rejuvenation Classic American Lighting and Houseparts [https://www.rejuvenation.com/].

The "up-cutting spiral" router-bit that Tom used to modify the old door for a lockset was supplied by Freud [https://www.freudtools.com/].

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How to Patch a Doorknob Hole With a Dutchman | This Old House
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