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How to Replace an Exterior Door – Part 4

Bob Jackson
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by Bob Jackson

How to Replace an Exterior Door photo tutorial – saw and install the brick and base shoe moulding.

This project is continued from Part 3.

How to Install Brick Mould

The Therma-Tru® Traditions® pre-hung entry door is now installed in the rough opening and it’s time to install the brick mould. The door can be ordered with the brick mould already fastened to the door frame or ordered “loose”. I ordered it loose because this gave me the most freedom in adjusting the door for imperfections in the wall. I received two side and one top piece of moulding with the door.

PVC Brick Mould for Exterior Door
PVC Brick Mould for Exterior Door

The Therma-Tru Door brick mould is a very nice PVC composite material that won’t rot and can be saw and nailed just like wood.

Weather Seal the Door Jambs and Rough Opening

Before installing the brick mould, I sealed the spaces between the door frame and 2×4 rough opening with more of the GREAT STUFF™ Window & Door foam to stop drafts and insulate around the door. You could also stuff pieces of fiberglass insulation in the cracks though this won’t seal as well as GREAT STUFF.

The two vertical sections of brick mould are fastened with the brad nailer on each side of door frame. These sections were already the right length and needed no additional work. The brick mould is butted against the edge of the HardiePlank siding and fastened with a brad nailer. The brad nailer makes the work so fast and easy compared to hammering in finishing nails, counter sinking the nail heads and bouncing the work piece all over the place with each hammer blow.

The brick mould for the door top is purposely shipped longer than necessary to be cut to your exact measurements. Here I’ve saw about 6″ section off the brick mould to fit my door.

Cut the Door Brick Mould with a Miter Saw
Cut the Door Brick Mould with a Miter Saw

The brick mould installed on the door frame before caulking and painting. I’ve also reinstalled the lockset hardware.

Exterior Door with New Brick Mould
Exterior Door with New Brick Mould

The brick mould is caulked to seal it against the HardiePlank cement board siding. Smooth the caulk with either a wet finger or a caulk tool.

Always be careful to choose a paintable caulk. Latex caulks are paintable but you have to be careful if using a silicone caulk because many silicone caulks are not paintable – the paint won’t stick and beads up. Read the label to ensure it says “paintable” in big bold letters.

Caulk the Exterior Door Brick Mould
Caulk the Exterior Door Brick Mould

The gap between the hardwood floor and the threshold cap is finished off with a semi-oval section of PVC composite base shoe moulding. I ran a bead of caulk under the moulding before nailing it with the brad nailer. If you’re using finishing nails, I recommend pre-drilling your holes first because the moulding is slippery and it’s difficult to get a nail started by hand.

Exterior Door Threshold: Install Base Shoe Semi-Oval Moulding
Exterior Door Threshold: Install Base Shoe Semi-Oval Moulding

Closeup of the threshold and base shoe moulding.

Exterior Door Threshold Detail: New Therma-Tru Traditions Exterior Door
Exterior Door Threshold Detail: New Therma-Tru Traditions Exterior Door

Self-stick corner pads are installed at the bottom corners on each side to keep out driving rain.

Exterior Door Corner Pad Detail to Seal the Bottom Edge
Exterior Door Corner Pad Detail to Seal the Bottom Edge

The door installation is now complete! Tomorrow I’ll paint the door.

Therma-Tru Traditions Pre-Hung Exterior Door Installation
Therma-Tru Traditions Pre-Hung Exterior Door Installation

Overall this job required an afternoon to remove the old door and install the new door. We had the Therma-Tru door now for about 2 months and are very happy with it.

Old Door Disposal

Getting rid of the old door proved to be an unexpected challenge. The door was fine and would look great with a new coat of paint. I called Goodwill but they don’t take doors. My neighbor has rental properties and I offered it to him, but he didn’t need it. My garbage company said I needed to cut the door in half (it’s mostly glass!) for them to pick it up and the county landfill wanted to charge me $40 to drop it off.

I thought, someone can reuse the door, so I left it standing against the front wall of vacant shopping center next to a heavily traveled road. The door was gone when I passed by later that day.

Best regards,

Bob Jackson

base shoe mouldingbrad nailercorner padsdoor sillhow to install brick mould
Bob Jackson
Bob Jackson
Technology product manager by day and a prolific handyman in the evenings and over the weekends. Bob was the founder of the original Handyman How To website and that tradition continues on this site with excellent new handyman content into the future.
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