BarndominiumPlan HG-1742
900 Sq Ft (30x30) 1 Bed 1 Bath Barndominium Floor Plan with Shop
541
Sq Ft
1
Beds
1
Baths
360
Shop SF
Shell Est: $27,000
30' × 30' Shell • 21 Floor Plans
30' × 30' Floor Plans (900 Sq Ft Base)
Compare 21 build-ready ways to configure a 30-foot by 30-foot structure—including all-living homes, shop-house splits, and 2-story lofts.
21 Plans
21 Plans
BarndominiumPlan HG-1743
900 Sq Ft (30x30) 2 Bed 2 Bath Barndominium Floor Plan with Shop
541
Sq Ft
2
Beds
2
Baths
360
Shop SF
Shell Est: $27,000
Pole Barn Home (Post-Frame)Plan HG-1744
900 Sq Ft (30x30) 1 Bed 1 Bath Pole Barn Home (Post-Frame) Floor Plan with Shop
541
Sq Ft
1
Beds
1
Baths
360
Shop SF
Shell Est: $24,000
Pole Barn Home (Post-Frame)Plan HG-1745
900 Sq Ft (30x30) 2 Bed 2 Bath Pole Barn Home (Post-Frame) Floor Plan with Shop
541
Sq Ft
2
Beds
2
Baths
360
Shop SF
Shell Est: $24,000
Single-Story RanchPlan HG-1746
900 Sq Ft (30x30) 1 Bed 1 Bath Single-Story Ranch Floor Plan
900
Sq Ft
1
Beds
1
Baths
30x30
Shell
Shell Est: $36,000
Single-Story RanchPlan HG-1747
900 Sq Ft (30x30) 2 Bed 2 Bath Single-Story Ranch Floor Plan
900
Sq Ft
2
Beds
2
Baths
30x30
Shell
Shell Est: $36,000
Single-Story RanchPlan HG-1748
900 Sq Ft (30x30) 2 Bed 2 Bath Single-Story Ranch Floor Plan (Consolidated Wet-Wall + Open Great Room)
900
Sq Ft
2
Beds
2
Baths
30x30
Shell
Shell Est: $36,000
Backyard ADU / Granny FlatPlan HG-1749
900 Sq Ft (30x30) 1 Bed 1 Bath Backyard ADU / Granny Flat Floor Plan
900
Sq Ft
1
Beds
1
Baths
30x30
Shell
Shell Est: $41,000
Backyard ADU / Granny FlatPlan HG-1750
900 Sq Ft (30x30) 2 Bed 2 Bath Backyard ADU / Granny Flat Floor Plan
900
Sq Ft
2
Beds
2
Baths
30x30
Shell
Shell Est: $41,000
Backyard ADU / Granny FlatPlan HG-1751
900 Sq Ft (30x30) 2 Bed 2 Bath Backyard ADU / Granny Flat Floor Plan (Consolidated Wet-Wall + Open Great Room)
900
Sq Ft
2
Beds
2
Baths
30x30
Shell
Shell Est: $41,000
A-Frame CabinPlan HG-1752
1,292 Sq Ft (30x30) 1 Bed 1 Bath A-Frame Cabin Floor Plan with Loft
1,292
Sq Ft
1
Beds
1
Baths
30x30
Shell
Shell Est: $57,000
A-Frame CabinPlan HG-1753
1,292 Sq Ft (30x30) 2 Bed 2 Bath A-Frame Cabin Floor Plan with Loft
1,292
Sq Ft
2
Beds
2
Baths
30x30
Shell
Shell Est: $57,000
30' × 30' Build Cost Guide, Nearby Sizes & FAQs
Slab takeoff, framing span notes, and comparable footprint sizes
30' × 30' Build Cost Guide, Nearby Sizes & FAQs
Slab takeoff, framing span notes, and comparable footprint sizes
Nearby Footprint Sizes:20'×36' (720 sf)20'×40' (800 sf)22'×30' (660 sf)22'×32' (704 sf)22'×36' (792 sf)22'×40' (880 sf)24'×28' (672 sf)24'×30' (720 sf)
30' Clear-Span Truss & Slab Engineering
A 30' × 30' rectangular building envelope (900 sq ft base area, 120 linear feet of exterior wall) is one of the most cost-effective structural modules in residential construction. Because the 30-foot width can be spanned by single-piece prefabricated wood roof trusses or cold-formed steel rafters, interior walls are non-load-bearing—allowing complete flexibility between open great rooms, split bedroom wings, and drive-in garage bays.
Material Takeoff Baseline (15 Cu. Yds. Concrete / 11 Roof Squares)
Every 4-corner 30x30 layout eliminates expensive hip-and-valley roof framing and minimizes foundation form corners. Builders typically budget 15 cubic yards of 4,000-PSI concrete for the monolithic slab, 102 exterior 2x6 studs (or 15 laminated post-frame columns at 8' o.c.), and 11 squares of standing-seam or ribbed metal roofing.
How many bedrooms and bathrooms fit inside a 30x30 (900 sq ft) floor plan?
A 30' × 30' building footprint (900 sq ft base area) comfortably supports 1 to 3 bedrooms and 1 to 2 bathrooms, or a 1-to-2 bedroom layout with an integrated garage/workshop bay. Browse all 21 vetted 30x30 floor plan variations above to compare room sizes.
How much concrete and roofing material does a 30x30 building require?
A 30' × 30' footprint has 120 linear feet of exterior perimeter wall. Pouring a 4-inch monolithic concrete slab with thickened perimeter grade beams requires approximately 15 cubic yards of ready-mix concrete. A standard gable roof with 18-inch overhangs requires roughly 11 roofing squares (1,100 sq ft of metal or shingle coverage).
What is the average cost to build a 30x30 house or barndominium?
Across our 21 engineered 30x30 blueprints, dried-in structural shell packages range from $27,000 to $43,200, while full turnkey construction averages $166,024 depending on whether the footprint is configured as all-living space or split between living quarters and an unheated shop bay.