GE JKS3000SNSS cutout dimensions (27-inch single wall oven)

Last updated: 2026-10-27

GE's installation instructions for its 27-inch and 30-inch electric built-in wall ovens give the 27-inch single oven a cutout 25 to 25 1/4 in wide, 27 5/8 to 28 1/8 in high and at least 23 1/2 in deep. GE lists the oven itself at 28.75 in high, 26.75 in wide and 26.625 in deep.

25" to 25 1/4" wide

Cutout height 27 5/8" minimum to 28 1/8" maximum. Cutout depth 23 1/2" minimum.

Source: GE installation instructions 31-2003973 Rev. 2 (PDF), “27" & 30" Electric Built-In Wall Ovens”, dated 09-26 (accessed 2026-10-27), page 5, section 2B “Cutout for single ovens in wall cabinet”, 27" Single Oven column.

What wall cabinet opening does GE list?

Dimension	GE figure, 27" single oven
A. Cabinet width	27"
B. Cutout width	25" min., 25 1/4" max.
C. Cutout height	27 5/8" min., 28 1/8" max.
D. Cutout depth	23 1/2" min.
E. Bottom of cutout to the floor	32 1/2" min.

Source: GE 31-2003973 Rev. 2 (PDF), page 5, rows A to E. The same document's page 4 covers under-counter installs, which are a different case.

How big is the oven?

28.75 H x 26.75 W x 26.625 D

Product dimensions in inches, as GE's product page prints them.

Source: GE JKS3000SNSS product page (accessed 2026-10-27), “Dimensions”.

GE's product page says “This model is no longer being manufactured.”

The installation instructions do not list model numbers. We use them because GE's own install support page for the JKS3000SNSS links this document.

Sources

GE Appliances, installation instructions 31-2003973 Rev. 2 (PDF): https://images.salsify.com/image/upload/s--Gi7VsNGQ--/13d80f85ae7def8354d30a2d7a655e1d80e06dcd.pdf, accessed 2026-10-27
GE Appliances, JKS3000SNSS product page: https://www.geappliances.com/appliance/GE-27-Smart-Built-In-Single-Wall-Oven-JKS3000SNSS, accessed 2026-10-27
GE Appliances, JKS3000SNSS install support page (links the PDF): https://products.geappliances.com/appliance/gea-specs/JKS3000SNSS/install, accessed 2026-10-27