Design House Double Cylinder 2-Way Round Corner Deadbolt - Satin

In this review the Design House 783829 double cylinder deadbolt is assessed as a straightforward security upgrade for standard residential doors. It is best for homeowners who want a keyed lock on both sides for added interior and exterior control, and the single biggest reason to buy is its reliable, ANSI Grade-3 construction combined with a clean satin nickel finish that suits most door styles. The reviewer found installation to be simple on typical 1-3/8 in and 1-3/4 in doors and appreciated that the unit fits the common 2-3/4 in and 2-3/8 in backsets.

Key Features

• Two-way keyed operation: Requires a key to unlock from both inside and outside, offering controlled access and additional interior security when desired.
• ANSI Grade-3 certification: Meets residential security standards, providing basic but dependable protection for home entry and interior doors.
• Fits common door sizes: Designed for 1-3/8 in and 1-3/4 in thick doors and two common backsets, reducing the need for door modification.
• Solid latch and core: The 1 in nickel-plated latch bolt with a 5-pin high security core holds firmly once extended for stable locking performance.
• Reversible handing: Works on left- or right-hand doors, making it versatile during installation and replacement projects.
• Finish and warranty: Satin nickel finish resists tarnish and is backed by a 5-year limited mechanical and finish warranty for consumer peace of mind.

Who It's For

This deadbolt is ideal for homeowners and renters seeking an affordable, keyed double-cylinder option for exterior entries where a keyed interior lock is desired for added control. It also suits interior use cases where an owner wants to restrict access to a room from both sides, such as storage or utility spaces.

It is not the right choice for doors that already require non-keyed emergency exit egress or for users who need higher commercial-grade security; those buyers should consider higher ANSI grades or single-cylinder options for quicker emergency exit from the inside.

Pros & Cons

Pros

• Easy installation on standard doors and common backsets, often completed in minutes by someone comfortable with basic tools.
• Solid feel and reliable lock engagement thanks to the 1 in latch bolt and 5-pin core.
• Clean satin nickel appearance that fits typical home decor and a reversible design for left or right doors.
• Backed by a 5-year limited mechanical and finish warranty for added confidence.

Cons

• Some customers noted mixed feedback on screw length during installation, which may require replacement screws in specific door preparations.
• As an ANSI Grade-3 product it offers residential-level security rather than higher-grade commercial protection.

Specifications

Product type	Double cylinder deadbolt
Finish	Satin nickel
Door thickness	Fits 1-3/8 in and 1-3/4 in
Backset compatibility	Fits 2-3/4 in and 2-3/8 in backsets
Latch bolt	1 in nickel-plated with 5-pin core
Face plate	1 in by 2-1/4 in radius corner
Warranty	5-year limited mechanical / 5-year limited finish

Our Verdict

The Design House 783829 double cylinder deadbolt is a practical, value-oriented choice for homeowners who want keyed control on both sides and a neat satin nickel finish. It installs easily on the most common doors, provides dependable residential security as an ANSI Grade-3 lock, and is a sensible upgrade when moderate protection and appearance matter more than commercial-grade strength.

Frequently Asked Questions

Does this deadbolt require a special door prep?
Answer: No special prep beyond a standard 2-1/8 in cross bore and 1 in edge bore is required; it also fits the two common backset sizes.

Can it be used on left- or right-hand doors?
Answer: Yes, the design is reversible for left or right handing to accommodate most installations.

What level of security does it provide?
Answer: It is ANSI Grade-3 certified, offering residential-level security suitable for home entry and interior doors but not commercial high-security applications.