
Sash Terminology
Window Sash
The window sash is the structural framework that holds the glass. On a double-hung window both the bottom and top sashes are movable.
Muntins
A muntin is a narrow strip of wood that divides a window into smaller panes of glass. Historically, muntins provided structural support for windows when large, single pieces of glass were difficult to manufacture and expensive.
Glazing
Glazing is sometimes used to refer to the actual glass in the window as well as the glazing putty that holds the window in place. Traditional glazing putty is a linseed oil base and is applied on the outside
Rails
These are the pieces of wood that run horizontally on the window sash. The typical width of a rail is 1 1/4, 2 1/4, 3 1/4.
Stiles
These are the vertical pieces of wood on a window sash.
Mullion
When two or more windows are connected to each other, the area where the two side jambs meet is called a mullion
Check Rail
The two rails that meet in the middle of double-hung and single-hung windows are called check rails
Horn
The horn refers to the curved section on the bottom of a sash this is typically found on the bottom of the upper sash. It has an aesthetic appeal and functionally it keeps the top sash so that it is easier to grab when it is down.
Casing
Casing is the trim around the window that covers the gap between the jamb and the rough opening and or drywall.

Determining What Kind of Sash You Have
Most homes that were built between approximately 1870 to 1960), was a time of national standardization in the U.S. millwork industry. This type of Sash is commonly known as Second Era millwork. You can read here if you would like to know more on Sash Windows in The United States.

In San Luis Obispo County as well as Santa Barbara County many of the homes built in that era all have double-hung sash windows. The sash sticking, as it is referred to, has the same profile everywhere and the sash horns are generally very similar in profile, however, I do notice minor differences in those depending on the year the house was built.
How To Measure
Measure Width
Measure outside edge, to outside edge

Measure Height
Measure outside edge to outside edge (Do Not include horn in measurement) Horn will be added if the option is selected

Measure Top Rail
Top rail width including the Ogee profile

Measure Bottom Rail
Top rail width, including the Ogee profile

Divided Lites and Muntins
To account for divided lites you will specify the number of muntins vertically and horizontally.
Divided lites will be made to equally sub-divided sections.


Sash Order Form
We take pride in using time-honored techniques that have stood the test of time, one of the most fundamental being mortise and tenon joinery. This method, renowned for its simplicity and strength, has been a cornerstone of craftsmanship for thousands of years. The mortise and tenon joint has been a trusted technique across multiple trades.
We will confirm your Sash Specifications and send you a payment link, please allow 2-4 weeks lead time.
• All Sashes are plowed for cords
• Wood is pattern-grade sugar pine
• Sashes come with no primer or finish