A worker sanding a door at a bench in the Builders Outlet mill shop

Custom Doors in Denver

Custom doors in Denver start in the Builders Outlet mill shop, where we modify and customize doors to fit odd openings and special sizes.

Mill shopmodifies and customizes doors
Bothresidential and commercial doors
303-789-0808call or visit the showroom

Bring your measurements and we'll go over your options.

Black front door with an arched transom and leaded glass in a white stucco entry

A door that fits the opening

Older homes and remodels often have odd-sized openings. Our mill shop is set up to fit a door to one.

Planning a custom front door? Start with front doors in Denver.

Browse the Simpson line →
Milling machine and workbenches in the Builders Outlet mill shop

Cut to your size

Bring the size you need and the mill shop works to it.

Contact the mill shop →

Odd-sized opening? Start here

Measure the opening

Write down the width and height in inches.

Photograph it

Take photos of the opening and of any existing door.

Bring it in

Bring the numbers, the photos and the door if you have it.

Talk to the mill shop

We go through the options with you.

How do I measure for a custom door?
Measure the opening's width and height in inches and bring both. A prehung door's rough opening is 2 inches wider and 2 1/2 taller than the door.
Can the mill shop work on commercial doors?
Yes. The mill shop modifies and customizes doors to fit a project. See contractor supply.
Do you take small jobs?
Yes. No project is too big or too small. Read about us or stop by the showroom.
Stacks of lumber and door blanks in the Builders Outlet warehouse

Bring your door measurements

Call 303-789-0808 or visit 775 Canosa Court, Monday to Friday 8:30 to 5 and Saturday 9 to 3.

303-789-0808