Primary Bathroom vs Hall Bathroom Remodel Cost in Columbus (2026)

In Columbus the same remodel costs about a third more in a 10-by-12 primary bathroom than in an 8-by-8 hall bath. A mid-range job runs $17,890 to $24,242 in the hall bath and $24,845 to $32,688 in the primary. The estimator on this site scales the whole project by floor area, but the tier you pick moves the number further than the room size does.

Reviewed September 2026 by a licensed Ohio general contractor.

What is the cost difference between a primary bathroom and a hall bathroom?

Four room sizes cover almost every bathroom in central Ohio, and the estimator applies a multiplier to each: 0.75 for a small or half bath at roughly 5 by 8 feet, 1.0 for a standard 8-by-8 hall bath, 1.2 for a large 8-by-10, and 1.5 for a primary or oversized bath at about 10 by 12. That multiplier scales man-hours and install materials together, so it moves the whole estimate rather than one line of it.

Read it across and the size premium is steady: 34 to 39 percent from a standard hall bath to a primary bath, depending on the tier. Read it down and the tier premium is far larger. A primary bath done at the standard tier costs less than a hall bath done at mid-range. If the budget is fixed, the tier is the lever, not the room.

Why does a bigger bathroom cost more than the extra square footage suggests?

A 10-by-12 bathroom has 120 square feet of floor against the hall bath's 64, which is nearly double. The estimate rises by only about a third, because a good deal of a bathroom is fixed regardless of size.

The fixed part is the fixture count and the rough-in behind it. Most primary baths have one toilet and one shower, the same as the hall bath, and the plumbing subcontract is priced against the fixtures rather than the floor area. Mobilization, dust protection, the dumpster and the final clean are also broadly the same job in either room.

What does scale is everything measured in square feet or linear feet: floor tile, surround tile, drywall, paint, baseboard and the subfloor work under all of it. Mid-range tile work is 40 man-hours at standard size and 60 at primary size, about $1,700 of extra labor at the $85 rate before the tile itself. Drywall goes from 16 hours to 24, paint from 10 to 15, demo from 24 to 36.

The exception is the primary bath that also has the second sink, the separate tub, the larger shower and the linen closet. That room is not a scaled hall bath. It has more fixtures, and each one carries its own rough-in, its own trim visit and its own allowance.

What does a double vanity add?

A second sink adds a rough-in, a second faucet, and a wider cabinet, and it usually pushes the room to the high-end tier, where a double vanity is part of the standard scope. The vanity and top allowance in the estimator moves from $300 to $500 at mid-range up to $800 to $2,000 at high-end and $1,500 to $4,000 at luxury. The faucet allowance moves from $80 to $300 up to $200 to $500, because there are two of them.

The constraint is usually the wall, not the money. A 60-inch double vanity needs the wall to give it, and a bathroom that loses a doorway swing or a towel run to gain a second sink has traded the wrong thing. Check the walkway and the front clearance before the cabinet is ordered. The recommended figures are set out in the notes on NKBA bathroom clearances, and they are the most common reason a primary bath layout gets redrawn after the first quote.

What does a layout change add?

It moves the job up a tier. Mid-range keeps the layout and reuses the existing rough-in. High-end is where the scope adds framing for new walls, blocking throughout, and a relocated plumbing rough, and it is the reason the same room jumps from $17,890 to $24,242 up to $25,260 to $35,926 at standard size. Framing man-hours rise from 16 to 24 and tile from 40 to 56.

The question people ask most often is what a small primary bath costs as a gut remodel with the layout changed. At standard size that is the high-end column: $25,260 to $35,926. At 8 by 10 it is $28,890 to $40,402. Add a second floor at 5 percent or an occupied home at 20 and the base range moves again.

The single most expensive item inside a layout change is the waste line. Supply lines are flexible and small; a toilet's three-inch drain has to fall toward a stack at a fixed slope, and it runs inside the floor structure. That is the whole argument in why moving the toilet is the most expensive decision, and it applies to a shower drain for the same reason.

If the change you are making is a tub coming out for a shower, the cost of that specific move is set out in walk-in shower conversion cost.

Does the floor it sits on change the price?

Yes, and this is where hall baths and primary baths usually differ in Columbus. Site difficulty is a flat multiplier on labor, subcontracts and materials, and it stacks by reason up to 35 percent.

A second-floor bathroom adds 5 percent, because materials are carried upstairs and the crew moves slower. On the mid-range base range of $16,310 to $19,292 at standard size, that is $816 to $965. Narrow hallways or tight doorways add 10. Long carries from the street add 15. An occupied home, which is the usual case when the hall bath is the only other bathroom, adds 20: $3,262 to $3,858 on that same base. A basement bathroom adds 30.

Primary baths are more often on the second floor and more often reached through a bedroom, so the multiplier lands on them more often than on a first-floor hall bath. It applies to labor, subs and materials only. It never touches the fixture and finish allowances you pick yourself.

How long does each one take?

Most bathroom gut remodels run two to three weeks, four at the longest. The man-hour totals scale the same way the dollars do. A standard-tier hall bath is 72 man-hours, about 4.5 crew days at 16 man-hours a day. The same tier in a primary bath is 108 man-hours, about 6.8 days. A mid-range hall bath is 146 man-hours, about nine days; a mid-range primary bath is 219, about fourteen.

A like-for-like fixture swap with no layout change runs about a week in either room, which is the comparison drawn in tub-to-shower conversion cost. Tile and cure time, not fixtures, are what stretch a schedule.

Which bathroom should you remodel first?

If both need work and the budget covers one, the hall bath is usually the better first move. It is the smaller multiplier, it is the bathroom guests and children use, and it is the one that has to keep working while the primary bath is torn out later. Doing it first also means you are not without a shower when the larger project starts.

Remodel the primary first when the failure is in that room, when a second sink or a walk-in shower is the actual goal, or when the two baths are stacked and the plumbing work can be shared. Stacked baths on the same wet wall are the one case where doing both at once genuinely saves money, because the rough-in, the sub visits and the dumpster are paid for once.

What to do next

Pick the tier before you measure. The table above shows why: moving up one tier costs more than moving up two room sizes, and the tier is the part you control.

The full breakdown of what each tier includes, where the money goes and how a quote should be read is in the guide to bathroom remodel cost in Columbus. To put your own room size, tier and site conditions against these figures, use the bathroom cost estimator.