Want your new door to fit exactly like the old one? This page walks you through every measurement, one step at a time. All you need is a tape measure and about 10 minutes. Write your numbers down as you go (there is a printable worksheet at the bottom of this page), then enter them in the door builder when you order.

• 📏 A tape measure
• ✏️ Pencil and paper (or the worksheet below)
• 📷 Your phone camera, for one hinge photo
• ⏰ About 10 minutes

1. 1

   Door size: width, height, thickness

   Every order

   Measure the door itself, not the frame around it. Open the door partway so you can reach all the edges.

   • Width: across the face of the door, edge to edge. Doors come in standard widths 2 inches apart (24", 26", 28", 30", 32"...). Your number should land on one of those, or just a hair under. Not close to one of those? Message us before ordering.
   • Height: from the top edge straight down to the bottom edge. The standard is 80" (6 feet 8 inches). Shorter than 80"? Step 5 covers that.
   • Thickness: across the narrow edge of the door. Nearly every interior door, including ours, is 1-3/8" thick. If yours measures 1-3/4", message us before ordering.

   In the door builder: width and height are the Size you pick on the product page, for example 30 x 80.
2. 2

   Which way does it swing?

   Every order

   The swing (also called the handing) tells us which side of the door gets the hinges, so every cutout ends up on the correct side.

   The 10-second test: open your existing door and stand in the doorway with your back against the edge that has the hinges. Which hand reaches the handle?

   • Handle on your left = a Left-Hand door
   • Handle on your right = a Right-Hand door

   Two doors that meet in the middle of one wide opening count as a Double Door.

   

   In the door builder: pick Left, Right, or Double Door under Swing Direction.
3. 3

   Hinge spots: one number per hinge

   Only when matching existing hinges

   Keeping your existing frame? Measure: the new door's hinge slots have to line up with the slots already cut in that frame. Ordering a Complete Door Frame Set? Skip this step: the door and frame arrive machined to match each other at our standard spots.

   One number per hinge. Hook your tape over the top of the door and run it down the hinge edge. For each hinge, write down where the hinge starts, meaning the top edge of the hinge:

   • Top hinge: the one nearest the top of the door
   • Middle hinge: only if your door has one. Standard doors have 2 hinges, and a middle hinge is optional.
   • Bottom hinge: the one nearest the floor. Still measured from the top of the door down, so this is your biggest number.

   Also take one clear photo of a hinge with your phone. The builder asks for it, so we can match your hinge's size and corner shape before we cut.

   

   In the door builder: Door Prep Machining → Hinge Prep → Custom. Enter your Top and Bottom numbers (Middle only if you have one) and upload the hinge photo.
4. 4

   Handle height

   Only to match an existing handle

   Keeping your existing frame? Measure: the new door's latch (the small metal bolt that clicks into the frame when the door closes) has to line up with the latch slot already cut in that frame. Ordering a Complete Door Frame Set? Skip the height measurement: we use the standard height, the one used in almost every home.

   Handle centre: hook your tape over the top of the door and measure straight down to the centre of the handle, meaning the middle of the round hole it mounts through. On a standard 80" door this is usually about 44".

   One check for anyone reusing an old handle, even if you skipped the height: measure from the edge of the door to the centre of the round hole the handle mounts through. This little distance is called the backset. 2-3/8" is the standard we cut, and nearly every handle sold fits it. If yours measures 2-3/4", message us before ordering.

   

   In the door builder: Door Prep Machining → Lock Prep → Custom. Enter your handle-centre number.
5. 5

   Is your door shorter than 80"?

   Only for shorter doors

   Older homes and basements often have shorter doors. If the height you measured in step 1 is less than 80", we trim a standard door down for you: any finished height from 75" to 80".

   We always trim from the bottom of the door, so the panel layout keeps looking right. Just tell us the finished height you need; the small gap a door needs over the floor is up to you and your flooring.

   Need something shorter than 75"? Contact us first.

   

   In the door builder: say Yes when it asks about Custom Height (every path ends with that question, and Custom Height Cutdown is also a path of its own) and type your finished height (75" to 80").
6. 6

   Replacing the frame too?

   Only with a frame order

   The jamb is the wooden frame the door hangs on. If yours is damaged, or you want everything new, order a Complete Door Frame Set and check two things:

   • Jamb width: the front-to-back width of the frame board, which has to match your wall. Measure across the edge of your existing jamb, from one side of the wall to the other. 4-5/8" fits standard 2x4 walls; 6-5/8" fits thicker 2x6 walls.
   • The opening: measure the space inside your existing frame, side to side and top to bottom, in two or three spots. Keep the smallest numbers.

   Jambs come in two materials: raw MDF (smooth boards you prime and paint) or finger-jointed pine that arrives already primed.

   Easiest route: our Door Frame Builder asks for these one at a time and does the size math for you.

   

   In the door builder: choose the Complete Door Frame Set path and pick your jamb material and width. Standard hinge and latch slots come already cut.