How Much Does a Garage with a Loft Cost in Massachusetts? (2026 Prices by Size)

The cars park on the ground level, just like any garage. Above them, room-in-attic trusses create a floor you can walk on. The loft runs the length of the building at about half the width. On a 24x36, that's roughly a 12 by 36 foot space.

The ceiling follows the roofline, so it's tallest down the middle and slopes toward the sides. It's not a full second floor, and it doesn't have dormers. That's what separates it from a two-story garage, which we cover in How Much Does a Two-Story Garage Cost?.

People use a loft for storage, a workshop, a hobby space, a home gym, or a quiet office. The stairs matter more than most buyers expect, so read the stairs to your garage's upper level before you settle on a layout.

Every price below is for a site-built garage with a loft, T1-11 siding, 8-foot walls, and a 9/12 roof pitch. That's our standard loft configuration.

"Installed" means we supply the materials and our crew builds it. Trusses are made in-house, and the walls are framed on your foundation after it's poured.

Here's what comes with it. Every garage with a loft includes two overhead doors, a single entry door, and six windows: four on the main level and one in each gable end of the loft. That's the same at every size, so a 30x40 still includes two overhead doors. If you want more, such as four doors on the long side of a 24x48, we add the extra two to the standard package.

Here's what's not in the price:

• The foundation and excavation. Every garage needs one. Estimates for each size are below.
• Mileage. Our crews work out of Westfield. Projects farther from Westfield may have a mileage charge, and we'll show it on your quote.
• Sales tax. Massachusetts sales tax applies to part of the build price. Foundation work isn't taxed.

We don't do electrical work, plumbing, insulation, or interior finishing. None of it is included or quoted, so plan for those with your own contractors.

A 24x24 garage with a loft costs $53,575 with T1-11 siding, or $56,205 with vinyl. That's about $8,970 more than a 24x24 single-level garage at $44,605.

It's the smallest practical two-car footprint with a loft. The loft is roughly 12 by 24 feet. That's good storage or a small workspace, but not a lot of room to spread out.

A 24x28 costs $57,815, or $60,670 with vinyl. Four extra feet of length gives you a loft about 12 by 28 feet, which is enough for a workbench and storage on the same floor.

A 24x32 costs $62,055. This is where a loft starts to feel like a real room. You can set up a hobby area at one end and keep storage at the other.

A 24x36 costs $66,295. The loft is about 12 by 36 feet. That's plenty for a woodworking shop, a home gym, or a long office with a storage zone behind it. Moving from the 24x32 to the 24x36 costs $4,240.

A 28x28 costs $64,265. The extra width gives you roomier bays on the ground level and a wider loft overhead, about 14 feet wide. It's a good choice if you park a truck and an SUV and want a loft that's more than shelf space.

A 28x32 costs $68,890. It's a comfortable all-around size, with generous bays below and a loft of about 14 by 32 feet above.

A 28x36 costs $73,515, or $77,065 with vinyl. That's $12,515 more than a 28x36 single-level garage ($61,000). At 14 by 36 feet, the loft is about 500 square feet. People build workshops, studios, and finished offices at this size.

A 30x36 costs $77,890. It adds two feet of width over the 28x36 for $4,375, which gives you a 15-foot-wide loft and wider bays.

A 30x40 costs $82,935. That's about $15,280 more than the single-level 30x40 ($67,655). It's a large building with a loft of about 15 by 40 feet, which suits a serious workshop, a home gym, or a hobby space with room for everything.

A 24x48 costs $79,010. The long, narrow shape gives you a loft about 12 by 48 feet, which is a good fit for deep lots and for long workbench setups.

A 28x48 costs $87,385. It's the largest size we cover here, with a loft about 14 by 48 feet above a deep garage.

Not sure how much garage you need? Our guide on how big a garage you actually need can help.

The foundation is a separate scope, and the loft sits on the same foundation as a single-level garage of the same footprint. A detached garage in Massachusetts needs a frost-protected foundation, which means a footer, a stem wall below the frost line, a slab, and the excavation to get there.

Our estimates for common sizes are about $25,330 for a 24x24, $27,960 for a 24x28, $30,580 for a 24x32, and $32,785 for a 24x36. A 28x28 is about $30,820, a 28x32 about $32,565, and a 28x36 about $34,300. A 30x36 is about $35,300 and a 30x40 about $39,340. For the long buildings, a 24x48 is about $39,510 and a 28x48 about $43,190.

Put together, a 24x24 garage with a loft plus foundation is roughly $78,900. A 28x36 plus foundation is roughly $107,800. A 30x40 plus foundation is roughly $122,300.

These are estimates. Your actual foundation cost depends on your soil, slope, ledge, access, and how much digging your site needs. You can use us for the foundation or hire your own concrete contractor. Our foundation and excavation cost guide has the details.

Wall height. Wall height is the biggest swing on a loft garage. The standard is 8 feet. Ten-foot walls bring a 24x24 loft garage to $64,760, which is about $11,200 more. On a 28x36, 10-foot walls bring it to $86,790, about $13,300 more. Twelve-foot walls bring a 24x24 to $72,580 and a 28x36 to $97,170. Taller walls matter for lifted trucks, vans, RVs, and car lifts. Because they raise the whole roofline, they also add height inside the loft.

Roof pitch. The standard loft uses a 9/12 pitch because the roof is what creates the headroom up top. A 12/12 pitch gives you more headroom, and it costs more. The calculator prices it for your footprint.

Siding. Vinyl adds about $2,630 on a 24x24 and about $3,550 on a 28x36. T1-11 takes paint well and holds up in New England. Vinyl never needs painting. Shiplap, board and batten, HardiPlank, cedar clapboard, and cedar shakes are available at a premium.

Roofing. Metal roofing is available as an upgrade.

Getting upstairs. A pull-down ladder is the budget option. A fixed staircase takes floor space but makes the loft usable every week. Talk through access with your salesperson before you settle on a layout.

Finishing the loft. We don't do electrical work, plumbing, insulation, or interior finishing, and none of it is included or quoted. If you want a heated, wired, finished loft, you'd hire your own contractors for that.

For many people, yes. The loft premium runs from about $9,000 on a 24x24 to about $15,000 on a 30x40. For that, you get a whole floor of dry, usable space, which would otherwise cost you a second building, rented storage, or a cluttered garage floor.

If you only need storage, a loft is usually the better value. If you want a real room with full-height ceilings across the entire floor, that's the case for a two-story. See How Much Does a Two-Story Garage Cost? for what that adds.

If you're still deciding whether you need a loft at all, start with the single-level garage cost guide. For one overview of all three types, there's our custom garage cost guide.

A loft in a garage isn't automatically a legal living space. Habitable space has to meet residential code, including fire separation, egress, and utilities, and the rules vary by town. If you're thinking about an apartment, an in-law space, or a rental, talk to your local building department before you design the loft. People who want a livable second floor usually do better with a two-story build.