September 2, 2026

When planning a custom home, it is easy to spend most of your time thinking about kitchens, bedrooms, bathrooms, and finishes. However, one part of your custom home design in Idaho deserves just as much attention: the garage.

For many Idaho homeowners, a two-car garage sounds sufficient at first. Then, everyday life starts filling the extra space. Trucks, recreational vehicles, lawn equipment, bikes, tools, freezers, snow gear, and storage can quickly compete for room.

That raises an important question: Do you really need a 3-car garage?

The answer depends on more than how many vehicles you own today. Before finalizing your custom home plans, consider how you will actually use the space now and years from now.

Why 3-Car Garages Make Sense for Many Idaho Homes

A garage in Idaho often serves several purposes. It may protect vehicles from snow and freezing temperatures, but it can also become a workshop, storage area, gear room, or place for weekend projects.

That is especially true for families building custom homes in Idaho Falls and throughout Eastern Idaho.

A third garage bay gives you flexibility. Even if you do not park three vehicles inside every night, the extra space can make daily life much easier.

For example, that third bay could provide room for:

• An extra vehicle or teenager’s car
• ATVs, motorcycles, or other recreational equipment
• Bikes and outdoor gear
• Lawn and garden equipment
• Tools and a workbench
• Seasonal decorations
• An additional refrigerator or freezer
• Hunting, fishing, skiing, or camping equipment

The real question is not simply, “Do we have three cars?” Instead, ask, “How much garage space will our lifestyle actually require?”

Think Beyond the Cars You Own Today

One of the advantages of building a custom home is the ability to plan ahead.

Your current needs may look very different five or ten years from now. Children become drivers. Hobbies change. Families buy recreational equipment. Storage needs increase.

You may also decide to keep vehicles longer or add another truck or SUV.

This is why good custom home design in Idaho should consider your future lifestyle, not only your current one.

Building additional garage space during the original construction is usually much easier than trying to add another bay later.

Idaho Weather Changes the Garage Conversation

Eastern Idaho weather is another important factor.

Cold winters, snow, ice, wind, and changing temperatures make covered vehicle storage especially valuable. Nobody enjoys scraping several inches of snow off a vehicle before heading to work.

However, weather affects more than your cars.

Snow blowers, shovels, boots, winter equipment, and seasonal gear all need somewhere to go. Without enough storage, those items often end up scattered around the garage.

A larger garage can help keep the space organized while still allowing you to park comfortably.

A 3-Car Garage Doesn’t Have to Mean Three Cars

This is where custom design becomes valuable.

Your third bay does not have to function as traditional vehicle parking.

For some homeowners, it makes more sense to design that area around a specific use.

Create a Workshop

If you enjoy woodworking, automotive projects, or DIY work, a dedicated garage bay can give you room for a workbench, tools, and equipment without taking over your parking spaces.

Store Your Idaho Adventure Gear

Eastern Idaho offers plenty of reasons to own recreational equipment.

Camping gear, mountain bikes, fishing equipment, kayaks, skis, and other outdoor items all take up space. A third bay can become an organized home base for those activities.

Plan for ATVs and Other Toys

A third garage bay may also work well for ATVs, motorcycles, snowmobiles, or similar equipment.

However, think about access when creating your plans. Door width, garage depth, ceiling height, and storage placement can all affect how useful the space becomes.

Build Better Household Storage

Sometimes, you simply need storage.

A well-designed garage can include cabinets, shelving, overhead storage, and designated areas for seasonal items. Planning these details early can prevent the garage from becoming a cluttered catch-all.

Don’t Forget About Garage Depth

Number of bays is only one part of the decision.

Garage depth can be just as important.

A garage may technically fit a vehicle but still feel cramped once you add shelving, tools, trash cans, or a workbench.

This can become particularly noticeable with full-size trucks and SUVs.

If you drive larger vehicles, consider their actual dimensions before finalizing the plans. Make sure there is enough room to walk around the vehicle, open doors, and access storage comfortably.

An extra few feet of depth can sometimes be more useful than adding square footage elsewhere.

What About Garage Door Size?

Garage doors also deserve careful consideration during the custom home design process.

A larger truck may fit inside the garage but still feel uncomfortable going through a narrow opening every day.

Think about:

• Vehicle width
• Mirror clearance
• Vehicle height
• Future vehicle purchases
• Recreational equipment
• Trailers or accessories
• Snow buildup around entrances

The goal is not simply to make everything fit. The garage should be easy to use.

Attached or Detached Garage?

Another option is deciding whether all three bays should be attached to the house.

An attached 3-car garage is convenient, especially during an Idaho winter. However, some properties may benefit from a combination of attached and detached spaces.

For example, you might build a two-car attached garage for everyday vehicles and a detached shop or garage for recreational equipment.

This approach can work especially well on larger Eastern Idaho properties.

However, the right solution depends on the lot, home design, budget, and how you plan to use the space.

Will a 3-Car Garage Make the Front of Your Home Look Too Much Like a Garage?

It can—but it doesn’t have to.

This is where thoughtful architectural design becomes important.

Three large garage doors across the front of a home can dominate the exterior. Instead, your builder and designer can explore different configurations.

A side-entry garage may work on some properties. Another option is a two-car garage with a separate single bay positioned farther back.

Changing rooflines, materials, windows, doors, and garage placement can also help create a more balanced exterior.

The garage should complement the home rather than become its main architectural feature.

Should You Build a 3-Car Garage or a Shop?

This is another question we hear from homeowners with larger lots.

If you need significant space for tools, equipment, trailers, or recreational vehicles, a shop may offer more flexibility than an oversized attached garage.

However, if your priority is everyday convenience, an attached third bay may be the better choice.

Some homeowners choose both.

The key is deciding what you actually need before construction begins. Otherwise, you may spend money building space that does not function the way you expected.

Is a 3-Car Garage Worth the Extra Cost?

It depends on your priorities.

Every additional square foot affects the overall construction budget. Therefore, a third garage bay should not be added simply because it is popular.

Ask yourself how often you will use it.

If the third bay solves a real problem—parking, storage, recreation, hobbies, or future vehicles—it may be a worthwhile investment.

On the other hand, you may prefer to use that portion of the budget elsewhere.

That could mean a larger kitchen, better windows, upgraded insulation, outdoor living space, or additional finished square footage.

There is no universal right answer.

There is only the answer that makes the most sense for your family.

Questions to Ask Before Adding a Third Garage Bay

Before finalizing your plans, consider these questions:

1. How many vehicles do we expect to own in five or ten years?
2. Do we drive trucks or oversized SUVs?
3. Where will we store bikes, tools, lawn equipment, and seasonal items?
4. Do we own or plan to purchase recreational vehicles?
5. Would we actually use a workshop area?
6. Do we have enough land for a detached shop instead?
7. How much garage depth do we need?
8. Will the garage layout work with our lot?
9. How will the garage affect the exterior appearance of the home?
10. Is this the best use of our construction budget?

These conversations are much easier to have during the design phase than after construction begins.

Good Custom Home Design Starts With How You Live

A custom home should not simply look good in photos. It should make everyday life easier.

That is why TWebb Construction approaches custom home design in Idaho around the homeowner, the property, and how the home will actually be used.

For one family, that may mean a traditional two-car garage. Another may need three bays, additional depth, built-in storage, or space for recreational equipment. Someone building on acreage may decide that a separate shop makes more sense.

There is no reason to build space simply because everyone else is doing it.

Instead, build the space you will actually use.

If you’re considering building a custom home in Idaho Falls or Eastern Idaho, TWebb Construction can help you think through these decisions before they become expensive changes later. From the garage and floor plan to materials, energy efficiency, and the details that make a house work for your family, thoughtful planning can make a major difference in the finished home.

Ready to start planning your custom home? Contact TWebb Construction to talk about your ideas, your property, and what you want your home to do for you.