Casement windows open outward on hinges, while double-hung windows slide vertically with two movable sashes. The better choice depends on how you want to ventilate, clean, and operate your windows. The products below are related hardware rather than complete windows: they include options for double-hung sash control and locks, plus casement operators, locks, and hinges. Choose hardware only after checking your window type, dimensions, handing, and existing mounting pattern.
| Product | Best suited for | Window type |
|---|---|---|
| Andersen opening control device kit | Buyers seeking an opening-control accessory | Double-hung |
| Prime-Line F 2744 sash lock | Replacement lock for a sliding sash window | Single- or double-hung |
| Dual-arm window operator | Replacing a compatible crank mechanism | Casement |
| Hicarer zinc sash locks, six-pack | Multi-window hardware projects | Casement, as named |
| Bueyfolt concealed hinges | Replacing compatible window friction stays | Casement and other listed styles |
Andersen Double-Hung Opening Control Kit
This kit is named for double-hung windows and is an option for buyers looking for an opening-control accessory for that window style. It is more relevant to double-hung installations than to casement windows, which open on hinges rather than sliding sashes.
Best for: People researching an Andersen-branded opening-control device for a double-hung window. Why it was selected: Its stated product name directly identifies both the window type and the control function.
Check before buying: The supplied product details do not specify supported window models, installation requirements, or included parts. Confirm fit and intended use with the manufacturer or product listing before ordering.
Prime-Line F 2744 Sash Lock
This single sash lock is designed for both single-hung and double-hung vertical sliding windows. Its diecast construction has a white powder-coated enamel finish, and the listed frame materials include wood and vinyl.
Best for: Buyers replacing a sash lock on a compatible sliding window. Why it was selected: It has a clearly stated use across both single- and double-hung windows, making it a relevant hardware option for the double-hung side of this comparison.
Limitation: It is not described as casement hardware. Check the existing lock’s shape and mounting dimensions; the product details do not provide measurements.
Right-Hand Dual-Arm Casement Operator
This crank operator is described as a replacement compatible with Marvin, Bilt Best, Windsor, Vetter, Pozzi, Shelter, and other wood casement windows. The listing specifies right-hand operation, a 10-1/2-inch long arm, and a 4-7/16-inch short arm.
Best for: A buyer replacing a dual-arm operator on a matching right-hand casement window. Why it was selected: It represents a key casement-specific mechanism: a crank operator used to open and close the hinged sash.
Check before buying: The listing says right-hand only. It defines handing by the hinge side when viewed from outside, so verify that orientation and arm measurements before ordering.
Hicarer Antique Brass Sash Locks, Six-Pack
This set contains six die-cast zinc locks and mounting screws. The product name identifies the locks as casement hardware, and the listed center-to-center mounting measurements are about 1-15/16 inches on the lock and 1-7/8 inches on the fixing base. The description says the material is intended to resist corrosion.
Best for: Multi-window repairs or renovation projects where the listed dimensions match existing hardware. Why it was selected: It offers a multi-piece hardware option relevant to casement-window buyers.
Limitation: Product descriptions use “sash lock,” so confirm that the lock style and mounting pattern suit your particular casement window. Do not rely on the window-type name alone.
Bueyfolt Concealed Window Hinges
This pair of 10-inch concealed hinges has stainless-steel mounting plates and steel link arms with a corrosion-resistant e-gard coating. The listed applications include crank-out and push-out casement windows, awning windows, tilt-in hopper windows, and transom windows.
Best for: Buyers replacing hinges or friction stays on a window type specifically listed by the manufacturer. Why it was selected: Hinges are central to casement operation, and this product description names casement use directly.
Check before buying: The product is described as standard duty and 10 inches long. Confirm the size and mounting arrangement match your existing hardware.
Buying Guide: Casement Or Double-Hung?
How do the opening styles differ?
A casement window is hinged at the side and opens outward, often using a crank. A double-hung window has upper and lower sashes that move vertically. Hardware is generally style-specific: casements use operators and hinges, while double-hung windows use sash-related parts such as locks and opening-control devices.
Which type is easier to operate and clean?
Consider the window’s location and the people who will use it. Casement operation depends on a crank and unobstructed exterior clearance. Double-hung sashes move up and down, so confirm that the intended user can operate them and that the selected model allows access for cleaning. Product designs vary, so check the window manufacturer’s specifications.
What should you measure before buying hardware?
Record the existing hardware’s length, mounting-hole spacing, arm configuration, and orientation. For a casement operator, verify handing from the specified viewpoint and compare both arm lengths. For locks or hinges, compare the mounting pattern and overall dimensions. A similar appearance does not establish compatibility.
Which is better for a hardware replacement?
Choose based on the window already installed, not simply on the style you prefer. A sash lock for a vertical sliding window will not replace a casement crank, and a casement operator will not operate a double-hung sash. Use the window’s brand and model information where available.
Frequently Asked Questions
Are casement windows the same as double-hung windows?
No. Casement windows open outward on side hinges; double-hung windows have vertically sliding upper and lower sashes.
Can a double-hung sash lock be used on a casement window?
Not based on the product details here. The Prime-Line lock is specified for single- and double-hung vertical sliding windows, not casements.
What does right-hand mean for a casement operator?
For the listed operator, handing is determined by the hinge side when viewed from outside. Confirm this orientation before ordering.
Are the listed products complete windows?
No. They are window accessories, including locks, an opening-control device, a crank operator, and hinges.
What is the most important step before buying replacement hardware?
Match the hardware to the window type, dimensions, handing, and mounting pattern. Confirm uncertain compatibility with the manufacturer or seller.