Custom casement windows are the side-hinged style: each sash is hinged at the jamb and swings outward, rather than sliding past its neighbor in a track. Most of the sizes below are wider than they are tall — windows that sit above a counter or a sink, where the wall underneath is already spoken for. Here is the full size range, what each one costs, and how to tell whether a casement or a slider suits your opening.
What makes a casement window different
A casement sash is hinged at the left or right jamb. You turn the handle down and push the sash out — there is no crank to wind. Two things follow from that. First, the sash opens to nearly ninety degrees, so the opening clears almost completely for airflow — a slider can only ever open half its width, because one sash has to park behind the other. Second, when it is shut the sash pulls in against the frame on all four sides instead of riding in a track.
The trade-off is swing room. The sash needs clear space outside, so a casement is a poor fit over a walkway, a deck rail, or anywhere a patio umbrella lands. In those spots a slider is the better answer.
On the wider sizes the opening is split into two sashes rather than one. That keeps each sash a sensible weight on its hinges while still letting the whole opening clear.
Sizes and direct pricing
Ten sizes are listed as standard, from 36" square up to 72" wide by 48" tall. Six of the ten are wider than they are tall, two are taller than wide, and two are square — so the range leans toward wide, low openings rather than narrow vertical ones.
| Size (W × H) | Price | Shape |
|---|---|---|
| 36" × 36" | $585 | square |
| 36" × 48" | $780 | taller than wide |
| 42" × 36" | $682.50 | wider than tall |
| 42" × 48" | $910 | taller than wide |
| 48" × 36" | $780 | wider than tall |
| 48" × 48" | $1,040 | square |
| 60" × 36" | $975 | wider than tall |
| 60" × 48" | $1,300 | wider than tall |
| 72" × 36" | $1,170 | wider than tall |
| 72" × 48" | $1,560 | wider than tall |
Those are unit prices for the window, ordered direct. Freight is calculated at checkout once you enter your address, so the delivered total depends on where it is going.
Casement or slider?
Choose a casement when you want the opening to clear completely for airflow, when the window sits above a counter or sink and reaching across to shift a sliding sash is awkward, or when you want the sash to seal against the frame rather than ride in a track.
Choose a slider when there is no room outside for a sash to swing, when the window opens onto a walkway or deck where an open sash would be in the way, or when you would rather have a track to clean than hinges and a handle to look after.
Aluminum suits both. The frames are slim, so more of the opening is glass, and the finish is a powder coat rather than a paint that needs redoing.
Measuring before you order
Measure the rough opening, not the old window. Take the width at the top, middle and bottom of the opening and the height at the left, center and right, then use the smallest number in each direction. Openings are rarely square, and ordering to the largest measurement is the common way to end up with a unit that will not go in.
If your opening falls between two of the sizes above, order the next size down and shim the difference. If it is more than an inch off, ask and the unit can be sized to the opening instead.
Picking a size
Browse the full range on the collections page, or jump to a common size: 36" × 36", 36" × 48", 48" × 48", or 72" × 48". If you are weighing a casement against a wider opening that slides, the measuring guide covers the same rough-opening method for larger units.
Questions about a size that is not listed: call (818) 570-2424 or request a quote.
