Appliance Openings

GE JTS3000SNSS cutout dimensions (30-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 30-inch single oven a cutout 28 1/2 to 28 5/8 in wide, 27 1/4 to 27 5/16 in high and at least 23 1/2 in deep. GE lists the oven itself at 28.625 in high, 29.75 in wide and 26.75 in deep.

28 1/2" to 28 5/8" wide
Cutout height 27 1/4" minimum to 27 5/16" 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”, 30" Single Oven column.

What wall cabinet opening does GE list?

DimensionGE figure, 30" single oven
A. Cabinet width30"
B. Cutout width28 1/2" min., 28 5/8" max.
C. Cutout height27 1/4" min., 27 5/16" max.
D. Cutout depth23 1/2" min.
E. Bottom of cutout to the floor32 1/2"

Source: GE 31-2003973 Rev. 2 (PDF), page 5, rows A to E. GE prints “min.” on row E for the 27-inch oven but not for the 30-inch one. The same document's page 4 covers under-counter installs, which are a different case.

How big is the oven?

28.625 H x 29.75 W x 26.75 D
Product dimensions in inches, as GE's product page prints them.
Source: GE JTS3000SNSS product page (accessed 2026-10-27), “Dimensions”.

GE's product page also 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 JTS3000SNSS links this document.

Other GE single oven: GE JKS3000SNSS (27-inch). Double oven: GE JTD3000SNSS. Side by side: 30-inch comparison table. All oven and drawer openings.

Sources

  1. GE Appliances, installation instructions 31-2003973 Rev. 2 (PDF): https://images.salsify.com/image/upload/s--Gi7VsNGQ--/13d80f85ae7def8354d30a2d7a655e1d80e06dcd.pdf, accessed 2026-10-27
  2. GE Appliances, JTS3000SNSS product page: https://www.geappliances.com/appliance/GE-30-Smart-Built-In-Self-Clean-Single-Wall-Oven-JTS3000SNSS, accessed 2026-10-27
  3. GE Appliances, JTS3000SNSS install support page (links the PDF): https://products.geappliances.com/appliance/gea-specs/JTS3000SNSS/install, accessed 2026-10-27