Send us photos. We'll confirm the fit.

1. The whole opening, outside

   Step back so the frame, trim and threshold are all in the shot.

2. The whole opening, inside

   Shows the hinge side and which way the door swings.

3. Opening width, top and bottom

   With the trim off, tape stud to stud across the top, and again across the bottom.

4. Opening height, left and right

   Subfloor to the header, on the left side and the right.

5. Wall thickness

   Tape across the wall's thickness at the opening.

Trim can't come off yet? Send the whole-door photos and your door's size, and we'll review the estimate for free (only rough opening measurements are guaranteed).

1. Your old door

   The tape across the door edge to edge, and top to bottom.

2. The frame

   The tape across the frame between the jambs, at the top and at the bottom.

3. Hinge edge

   The tape running from the top of the door past each hinge.

4. A coin on a hinge corner

   Hold a dime or a quarter against a hinge corner, so we can match the corner shape.

5. Lock position

   The tape from the door edge to the center of the lock hole.

6. Handleset holes (if you have one)

   The screw holes of a grip below the deadbolt.

1. The whole door

   Lets us spot glass a kit can't replace, like flush-glazed glass or a patio slider.

2. Frame width

   Tape across the plastic frame, outside edge to outside edge.

3. Frame height

   Top outside edge of the frame to the bottom outside edge.

4. Door thickness

   Kits fit doors 1-3/4" thick, within 1/8".

Kits are listed by the outside size of the frame. Measuring the glass or the hole is the most common mistake.

1. The whole door

   So we can see the shape and style of the frame.

2. Frame width

   Tape across the plastic frame, outside edge to outside edge.

3. Frame height

   Top outside edge of the frame to the bottom outside edge.

4. Glass thickness

   Loosen a few frame screws and measure the glass edge: both panes and the gap between them.

For an oval, take the frame off and measure the glass itself.

1. The whole door, outside

   Shows the panels we would be cutting into.

2. The area to cut, marked

   Tape or trace the opening on the door, and photograph it with a tape measure showing the size.

3. The inside face

   The cut goes through both faces, so we check the inside too.

4. Door thickness

   Kits fit doors 1-3/4" thick, within 1/8".

The opening is 1" smaller than the kit's frame: a 24" × 38" kit needs a 23" × 37" opening.

1. The bottom of the door, outside

   The threshold, the bottom of the door and the frame on both sides.

2. Threshold length

   Tape along the threshold, between the frame on each side.

3. Threshold depth

   Front edge of the threshold to the back edge.

4. Threshold end

   Photograph the end of the threshold from the side, to show its shape and height.

5. Sweep end

   The end of the door sweep, to show the spacing and height of its fins.

For a sweep alone, the last photo is often all we need.