What sizes do wall ovens come in?
Most wall ovens come in 24-, 27-, and 30-inch widths; your LG LWS3081ST is designed for a 30-inch cabinet opening, with a typical minimum cutout depth of about 23 1/2 inches. Always match the oven size to your cabinet cutout measurements before buying or installing.
Common wall oven sizes (what you will see most often)
Wall ovens are usually grouped by width, then by whether they are single or double ovens.
- 24 in.: common for smaller kitchens and tighter cabinet runs
- 27 in.: a mid-size option found in many homes
- 30 in.: the most common “standard” size for full-capacity wall ovens
- Single vs. double: double ovens are taller and require a much larger cutout height
LWS3081ST installation cutout basics (size and clearance)
For a 30-inch double built-in oven installation, the installation guide calls out these key cabinet requirements:
- Cutout width: 28 1/2 in. min. to 28 5/8 in. max.
- Cutout depth: 23 1/2 in. minimum
- Cutout height: 51 13/16 in. min. to 51 15/16 in. max.
- Door clearance: allow at least 23 in. in front for the door when open
- Support: cabinet base platform must support 325 lb
For the exact diagram and measurement callouts, use the installation guide.
Quick comparison: typical “standard” sizes vs. LWS3081ST cutout
| Item | Typical wall oven range | LWS3081ST (30 in. double) cutout example |
|---|---|---|
| Width class | 24, 27, 30 in. | 30 in. cabinet width class |
| Cutout depth | Often ~22 to 24 in. | 23 1/2 in. min. |
| Cutout height | Varies by single vs. double | 51 13/16 to 51 15/16 in. |
Why it matters
Wall ovens are built to fit specific cabinet cutouts; being off by even a small amount can cause trim gaps, door interference, or installation problems. Measuring first also helps you avoid electrical and junction box placement issues during install.
Ordering parts and planning service
If you are sizing a replacement because of a heating or door issue, we recommend confirming the model and then ordering the correct replacement parts from the parts list for LWS3081ST, or searching by model on Sears PartsDirect.
Last updated: February 2026
Does anyone make a 27 inch gas wall oven?
Yes. 27-inch gas wall ovens exist, but they are much less common than 27-inch electric wall ovens. If you are shopping for a 27-inch opening, confirm the cutout width and gas connection location first, then match the oven type (gas vs. electric) to your kitchen’s utilities.
What to check before you buy
Even when an oven is marketed as “27-inch,” the cabinet cutout and utility hookups decide whether it will actually fit and connect safely.
- Measure the cabinet cutout width, height, and depth (not just the old oven’s front trim)
- Confirm you have a gas supply line available in the correct adjacent cabinet area
- Confirm you have the correct electrical supply for the oven you choose (many wall ovens still require 240/208V)
- Plan for required clearances and do not block the bottom air exhaust
- Use mounting screws and keep any factory spacers in place during installation
For LG installation requirements and cabinet/utility guidance, use the installation guide.
Gas vs. electric wall ovens: quick comparison
| Feature | Gas wall oven | Electric wall oven |
|---|---|---|
| Availability in 27-inch size | Limited | Common |
| Typical power needs | Gas plus electrical connection | 240/208V electrical connection |
| Heating characteristics | Moist heat, often different browning | Even, consistent baking and broiling |
| Installation complexity | Gas line plus electrical | Electrical only (typically) |
Why it matters for your LG LWS3081ST
Your LG LWS3081ST is an electric wall oven, so it is designed for a dedicated, properly grounded electrical branch circuit and hard-wiring into an approved junction box (no plug and receptacle). If you are replacing this model with a gas wall oven, you will be changing both the appliance type and the required hookups.
If you are keeping this oven and troubleshooting heat or safety shutoff symptoms instead, a failed thermal safety device can be a common cause; the range safety thermostat 6930W1A003X is one of the model-matched parts we list for LWS3081ST.
Ordering parts and finding model-matched help
- Use the parts list for LG LWS3081ST to match by diagram and part ID
- Keep your model number (LWS3081ST) handy when searching
- For broader model searches beyond this page, use Sears PartsDirect
Last updated: February 2026
Does LG make a double wall oven?
Yes. LG makes double wall ovens; they are built-in units with two separate oven cavities, and they typically require a higher-capacity electrical circuit than a single oven. For operating and feature details similar to your LG LWS3081ST wall oven, use the LWS3081ST owner's manual.
What “double wall oven” means
A double wall oven is a built-in oven configuration with:
- Two oven compartments (upper and lower) in one cabinet cutout
- Independent cooking modes and temperatures (varies by model)
- Higher total wattage draw than a single wall oven
Installation and electrical basics (what changes with a double)
From our installation guidance for LG built-in ovens, a double wall oven can draw substantially more power than a single unit, so the branch circuit and breaker size must match the appliance rating.
- Double wall ovens can consume up to 7,800W at 240VAC
- A 40A circuit breaker and #8 AWG wire are commonly specified for that load
- Single wall ovens can consume up to 4,100W at 240VAC and commonly use a 30A circuit with #10 AWG wire
| Configuration | Typical max load (240V) | Typical breaker | Typical wire gauge |
|---|---|---|---|
| Single wall oven | Up to ~4,100W | 30A | #10 AWG |
| Double wall oven | Up to ~7,800W | 40A | #8 AWG |
Why it matters
Choosing a double wall oven affects cabinet planning, junction box placement, and electrical capacity. Matching the correct circuit helps prevent nuisance breaker trips and protects wiring during high-heat modes like bake, broil, and self-clean.
Helpful next steps
- Confirm whether you want a single or double configuration before measuring your cabinet cutout.
- Review electrical requirements and junction box placement in the LWS3081ST installation guide.
- If you are shopping for replacement parts for your current oven, order from the parts list for model LWS3081ST on this page, or search by model number on Sears PartsDirect.
Last updated: February 2026
How do I know which LG oven I have?
You can identify which LG oven you have by finding the model number and serial number on the appliance’s rating label, then matching that model number to your parts list and LWS3081ST owner's manual. For this page, the model is LG LWS3081ST.
Where to find the model and serial number
On most LG built-in wall ovens, the rating label is on the oven frame area you can see when the door is open.
- Open the oven door fully and look along the frame (often near the side trim or lower edge)
- Check the left and right side frame rails and the front frame lip
- Use a flashlight; the label can be small and easy to miss
- Write the model number exactly as shown (letters and numbers matter)
- Record the serial number too; it helps confirm production details for service and parts matching
How to confirm you are on the right parts page
Once you have the model number, compare it to the model shown on your parts page.
| What to compare | What it should look like | Why it matters |
|---|---|---|
| Model number | Example: LWS3081ST | Ensures parts diagrams and components match your exact oven |
| Brand | LG | Prevents ordering look-alike parts for other brands |
| Product type | Electric wall oven | Confirms you are not looking at a range or cooktop parts list |
Why it matters
LG wall ovens can have similar-looking doors, trim, and controls across multiple models. Using the exact model number is the fastest way to get the correct replacement parts (like a door hinge, door lock assembly, or bake element) and the right troubleshooting steps.
If the label is hard to read
- Take a clear photo and zoom in to read the characters
- Clean the label gently with a damp cloth (do not scrape)
- If a character is ambiguous (like 0 vs O), copy the full string and compare it carefully to the model listing
You can also search by model number on Sears PartsDirect if you are matching a different LG oven than LWS3081ST.
Last updated: February 2026





