Interior door guides for contractors & developers
Practical articles on sizes, installation, door types and finishing — written around the products we manufacture.

Interior Door Sizes: Widths, Heights & Rough Openings
Which widths and heights are standard, how to calculate the rough opening and how to choose between a slab and a pre-hung unit.
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How to Install a Pre-Hung Interior Door (Step by Step)
From checking the rough opening to the final latch adjustment — the sequence our installers use on solid core pre-hung units.
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Types of Interior Doors: Flush, Shaker, Glass & Bi-Fold
Flush, Shaker panel, frosted glass, louver, bi-fold: what each style is for, how it is built and which rooms it suits.
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Solid Core vs Hollow Core Interior Doors
Weight, sound, durability, paint finish and price — an honest comparison and the construction behind our hybrid solid core.
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Bi-Fold Closet Doors: Sizes, Openings & Installation
How bi-fold sizes are measured, which widths cover which closets, and the track, pivot and alignment details that make them run smoothly.
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How to Paint Factory-Primed Interior Doors
Factory primer is only half the finish. Light sanding, the right enamel and the right order of panels give a furniture-grade result.
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