5x7, 5x8, and 8x10 Bathroom Remodel Costs: A Size-by-Size Line-Item Breakdown
Start your bathroom remodel with Realm to get size-specific pricing anchored to live market data and 10-15% savings on materials through our marketplace.
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July 23, 2026
In this article:
A bathroom remodel is one of the highest-ROI projects a homeowner can undertake, but the cost varies enormously by the size of the room. A 5x7 bathroom (35 square feet) costs significantly less than an 8x10 (80 square feet) — not just because there is less tile, but because the fixture layout, plumbing requirements, and material quantities all change with the footprint.
In California markets in 2026, Realm is quoting a full bathroom renovation at approximately $25,000 to $35,000 and a primary bath renovation at $35,000 to $45,000 with mid-range materials. A timely cost driver: Kohler raised fixture prices in mid-July 2026, making this an ideal moment to lock in pricing rather than relying on older quotes.
Get started with Realm — A Realm renovation advisor can provide a size-specific estimate and help you save 10 to 15 percent on materials through the Realm marketplace.
5x7 Bathroom Remodel Costs
A 5x7 bathroom is the most common size for a secondary or hall bathroom. It typically includes a shower, toilet, and vanity with a sink — no bathtub.
Line-Item Breakdown: 5x7 Bathroom
| Demolition and disposal | $1,200–$1,800 | $1,200–$1,800 | $1,500–$2,200 |
| Plumbing (rough-in and fixtures) | $4,000–$5,500 | $5,000–$6,500 | $6,000–$8,000 |
| Electrical (lighting, vent, outlets) | $1,200–$1,800 | $1,500–$2,000 | $2,000–$3,000 |
| Flooring (tile, 35 sq ft) | $700–$1,200 | $1,200–$1,800 | $1,800–$3,500 |
| Shower walls and pan | $2,500–$4,000 | $4,000–$6,000 | $6,000–$10,000 |
| Vanity and countertop | $800–$1,500 | $1,500–$2,500 | $2,500–$5,000 |
| Toilet | $300–$500 | $500–$800 | $800–$1,500 |
| Paint and trim | $400–$800 | $600–$1,000 | $800–$1,500 |
| Permits | $400–$800 | $400–$800 | $400–$800 |
| Total | $11,500–$17,900 | $16,100–$23,400 | $22,800–$35,500 |
Note: Realm's full renovation offering starts at approximately $25,000 for a complete bathroom remodel. The lower DIY and partial-reno ranges above are market comparisons, not Realm's typical scope. Realm fits full renovations, not quick refreshes.
5x8 Bathroom Remodel Costs
A 5x8 bathroom (40 square feet) is common for guest baths and secondary bathrooms. The extra foot of length typically allows for a tub-shower combination instead of a stand-up shower.
Line-Item Breakdown: 5x8 Bathroom
| Demolition and disposal | $1,500–$2,000 | $1,500–$2,000 | $2,000–$2,500 |
| Plumbing (rough-in and fixtures) | $4,500–$6,000 | $5,500–$7,000 | $7,000–$9,000 |
| Electrical (lighting, vent, outlets) | $1,500–$2,000 | $1,800–$2,500 | $2,500–$3,500 |
| Flooring (tile, 40 sq ft) | $800–$1,400 | $1,400–$2,200 | $2,200–$4,000 |
| Tub and surround | $1,500–$3,000 | $3,000–$5,000 | $5,000–$8,000 |
| Vanity and countertop | $1,000–$1,800 | $1,800–$3,000 | $3,000–$5,500 |
| Toilet | $300–$500 | $500–$800 | $800–$1,500 |
| Paint and trim | $500–$800 | $700–$1,200 | $1,000–$1,800 |
| Permits | $400–$800 | $400–$800 | $400–$800 |
| Total | $12,000–$18,300 | $17,100–$24,500 | $24,900–$37,600 |
8x10 Bathroom Remodel Costs
An 8x10 bathroom (80 square feet) is a primary or master bath. It typically includes a double vanity, a separate shower, a tub, and a toilet enclosure. The larger footprint and additional fixtures push costs significantly higher.
Line-Item Breakdown: 8x10 Primary Bathroom
| Demolition and disposal | $2,000–$3,000 | $2,500–$3,500 | $3,000–$4,500 |
| Plumbing (rough-in and fixtures) | $6,000–$8,000 | $7,500–$10,000 | $10,000–$14,000 |
| Electrical (lighting, vent, outlets) | $2,000–$3,000 | $2,500–$3,500 | $3,500–$5,000 |
| Flooring (tile, 80 sq ft) | $1,600–$2,800 | $2,800–$4,000 | $4,000–$7,000 |
| Shower and tub combo | $4,000–$6,000 | $6,000–$9,000 | $9,000–$15,000 |
| Double vanity and countertop | $2,000–$3,500 | $3,500–$5,500 | $5,500–$9,000 |
| Toilet | $300–$500 | $500–$800 | $800–$1,500 |
| Paint and trim | $800–$1,200 | $1,000–$1,500 | $1,500–$2,500 |
| Permits | $600–$1,200 | $600–$1,200 | $600–$1,200 |
| Total | $19,300–$29,200 | $26,900–$39,000 | $38,900–$57,700 |
Labor vs. Materials Split at Each Size
Labor and materials each account for roughly half of a bathroom remodel cost, but the split shifts with scope.
Across all sizes, labor accounts for 45 to 55 percent of the total. Tiling alone can be 15 to 25 percent of the total budget when you factor in demo, subfloor prep, waterproofing, and installation.
Materials bought through Realm's marketplace run 10 to 15 percent below retail across 600,000-plus items. On a $30,000 bathroom remodel, that translates to $1,500 to $3,000 in savings on tile, fixtures, vanities, and hardware.
What Changes the Number
Beyond size, these factors have the biggest impact on total cost:
- Tile area: A 5x7 bathroom with floor tile only (35 square feet) costs much less than an 8x10 with floor tile, a full shower surround, and a backsplash (200-plus square feet combined).
- Moving plumbing: Relocating a toilet or shower drain adds $1,500 to $4,000 depending on the floor structure and distance moved.
- Fixtures: The July 2026 Kohler price increase is a concrete example of why fixtures should be priced now, not from an old quote. A single faucet that was $400 last month could be $450 this month.
- Custom work: A custom tile pattern, heated floors, or a zero-threshold shower add premium labor and materials.
How to Read a Bathroom Bid So Sizes Are Comparable
When comparing bathroom bids, the first step is to confirm the bid covers the same scope at the same quality level.
- Confirm the footprint. Is the bid for the exact bathroom size? An 8x10 primary bath should not be compared to a 5x7 hall bath.
- Check what is included. Does the bid include demolition, disposal, and permits? Are fixtures and materials included or allowance-based?
- Check the allowance levels. A $15,000 allowance for tile in an 8x10 bathroom is generous. A $1,000 allowance is probably unrealistic for anything beyond standard subway tile.
- Ask about the sink and faucet brand. With the July 2026 Kohler price increase in effect, a bid that quotes Kohler fixtures at pre-increase prices may shift once the job is priced.
- Compare the warranty and scope of work, not just the total. A bid that includes a two-year workmanship warranty, detailed scope, and engineered drawings for structural changes is not directly comparable to a one-page estimate with a round number and no warranty language.
Frequently Asked Questions
Which bathroom size offers the best value per square foot? The 5x8 bathroom typically offers the best balance of cost and function. At roughly $25,000 to $35,000 for a full remodel, it works as a guest bath or secondary bathroom without the premium of a primary suite.
Can I remodel a 5x7 bathroom for under $15,000? A partial remodel — new vanity, toilet, lighting, and paint — can run $8,000 to $15,000 without moving plumbing or replacing the shower. A full renovation including a new shower, flooring, and electrical typically starts around $25,000 with Realm.
How much of a bathroom remodel cost is tile? Tile (material plus installation) typically accounts for 25 to 35 percent of the total budget on a full bathroom remodel. On a $30,000 primary bath, expect to spend $7,500 to $10,500 on tile and installation.
Does the July 2026 Kohler price increase affect my remodel? Yes, if your bid includes Kohler fixtures. Ask your contractor whether the bid reflects current pricing or pre-increase estimates. Realm's marketplace pricing captures live, current pricing.
How long does a bathroom remodel take by size? A 5x7 bathroom typically takes 3 to 5 weeks. An 8x10 primary bath with separate shower and tub takes 5 to 8 weeks. Custom tile work, moving plumbing, and permit delays can extend the timeline.
Start my renovation — Schedule a free consultation with a Realm renovation advisor to get a specific estimate for your bathroom size and see how the marketplace saves you 10 to 15 percent on materials.
