Product Types
Windows: hung & casement
A single hung window opens by sliding the bottom sash up; the top stays fixed. A double hung lets both sashes move. A casement has no sliding sash at all — it cranks outward on a side hinge for full top-to-bottom airflow. All three are quoted by their nominal (call) size and can be ordered in any fin or leg profile to match the install. On the job they're bucked the same way: a 4-piece opening — head, sill, and two jambs — with the jambs cut 3 inches short so the head and sill run full width.
- Buck pieces (window): head + sill + 2 jambs = 4
- Jamb cut: −3 in (head and sill run full width)
- Sized by: nominal / call size
- Finished hole: window + 1/2 in shim space
- Single hung is the most common quote in Florida — only the bottom sash moves, so it's simpler and usually the lowest-cost option.
- Double hung adds a movable top sash; both tilt or slide, which helps cleaning on upper floors but costs more.
- Casement cranks out from a side hinge — best airflow of the three and a tight seal when latched, but it needs swing clearance outside.
- The meeting rail is where the two sashes overlap on a hung window; on a casement there's no meeting rail because it's a single sash.
- Order any profile: Nail-fin, Equal Leg, Unequal Leg, or Florida Flange / Replacement — the window choice and the fin/leg choice are separate decisions.
- All three buck identically: head + sill + 2 jambs, jambs −3 in. (Sliding glass doors and bifolds differ — they drop the sill and cut jambs −1.5 in.)
Pros
- Single hung: lowest cost, fewest moving parts, no outside swing clearance needed
- Double hung: both sashes operate for easy cleaning and balanced ventilation
- Casement: best airflow and tightest seal when latched
- All three quote by nominal size and accept any fin or leg profile
Watch-outs
- Single hung: only the bottom half opens
- Double hung: more cost and hardware than single hung
- Casement: needs clear swing space outside and can catch wind when open
- Casement crank hardware is one more thing that can wear or fail